Comparison of the Effectiveness of Kinesiotaping and Manual Therapy in Shoulder Pain Syndrome

Streszczenie

Zespół bólu barku stanowi jedną z najczęstszych dolegliwości układu ruchu, charakteryzującą się znaczną heterogennością kliniczną oraz istotnym wpływem na funkcjonowanie pacjenta w życiu codziennym i zawodowym. Celem pracy jest porównanie skuteczności kinesiotapingu i terapii manualnej jako fizjoterapeutycznych metod zachowawczego leczenia bólu barku. Podstawę teoretyczną stanowi przegląd aktualnego piśmiennictwa naukowego z zakresu anatomii i biomechaniki kompleksu barkowego, mechanizmów działania obu metod terapeutycznych oraz dostępnych dowodów ich skuteczności klinicznej. Wywód pracy przebiega w trzech etapach: analizy anatomiczno-patofizjologicznych podstaw zespołu bólu barku, krytycznej oceny mechanizmów i bazy dowodowej obu modalności, a następnie porównawczej analizy ich skuteczności w odniesieniu do natężenia bólu, zakresu ruchu oraz poziomu niepełnosprawności funkcjonalnej. Na podstawie dokonanego przeglądu stwierdzono, że terapia manualna wykazuje przewagę w przypadku zaburzeń czynnościowych wymagających mobilizacji stawów i normalizacji napięcia tkanek, natomiast kinesiotaping stanowi skuteczne uzupełnienie procesu terapeutycznego, szczególnie w zakresie modulacji bólu i propriocepcji.^{[9, s. 8]} Żadna z metod nie wykazuje bezwzględnej wyższości — optymalny wynik terapeutyczny osiągany jest przez ich komplementarne stosowanie, dostosowane do indywidualnej charakterystyki klinicznej pacjenta.

Słowa kluczowe: zespół bólu barku, kinesiotaping, terapia manualna, fizjoterapia, staw ramienny, ból mięśniowo-szkieletowy

Abstract

Shoulder pain syndrome represents one of the most prevalent musculoskeletal disorders in the general population, characterised by considerable clinical heterogeneity and a substantial burden upon patient function, occupational capacity, and quality of life. The aim of the present thesis is to compare the clinical effectiveness of kinesiotaping and manual therapy as conservative physiotherapeutic interventions in the management of shoulder pain syndrome. The theoretical framework draws upon a structured review of current scientific literature encompassing the anatomy and biomechanics of the shoulder complex, the proposed mechanisms of action of each therapeutic modality, and the available evidence pertaining to their clinical efficacy. The investigation proceeds through three sequential analytical stages: an examination of the anatomical, biomechanical, and pathophysiological foundations of shoulder pain syndrome; a critical appraisal of the mechanistic rationale and evidence base underpinning both interventions; and a comparative analysis of their relative effectiveness across the principal outcome domains of pain intensity, range of motion, and functional disability. The findings indicate that manual therapy demonstrates particular effectiveness in addressing functional impairments that require joint mobilisation and soft tissue normalisation, while kinesiotaping constitutes an effective adjunctive modality, especially with regard to pain modulation and proprioceptive enhancement. Neither intervention demonstrates absolute superiority over the other; optimal therapeutic outcomes are achieved through their complementary application, individualised in accordance with the patient's specific clinical profile and presentation.

Keywords: shoulder pain syndrome, kinesiotaping, manual therapy, physiotherapy, glenohumeral joint, musculoskeletal pain

List of Abbreviations

ACJ

Acromioclavicular Joint

ADL

Activities of Daily Living

AMSTAR

A MeaSurement Tool to Assess systematic Reviews

ASES

American Shoulder and Elbow Surgeons outcome measure

BPI

Brief Pain Inventory

CMS

Constant-Murley Score

DASH

Disabilities of the Arm, Shoulder and Hand

EMG

Electromyography

GHJ

Glenohumeral Joint

GIRD

Glenohumeral Internal Rotation Deficit

GTO

Golgi Tendon Organ

HVLA

High-Velocity Low-Amplitude

IFOMPT

International Federation of Orthopaedic Manipulative Physical Therapists

KT

Kinesiotaping

MCID

Minimal Clinically Important Difference

MRI

Magnetic Resonance Imaging

MT

Manual Therapy

MWM

Mobilisation with Movement

NPRS

Numerical Pain Rating Scale

NRS

Numerical Rating Scale

OMERACT

Outcome Measures in Rheumatology

PEDro

Physiotherapy Evidence Database scale

PRISMA

Preferred Reporting Items for Systematic Reviews and Meta-Analyses

PSFS

Patient-Specific Functional Scale

RCT

Randomised Controlled Trial

ROM

Range of Motion

SCI

Spinal Cord Injury

SCJ

Sternoclavicular Joint

SLAP

Superior Labrum Anterior to Posterior

SMD

Standardised Mean Difference

SPADI

Shoulder Pain and Disability Index

VAS

Visual Analogue Scale

Introduction

Shoulder pain syndrome represents one of the most prevalent and clinically consequential musculoskeletal conditions encountered within contemporary physiotherapy and primary care practice. Epidemiological data consistently identify shoulder pain as the third most common musculoskeletal complaint in the general population, following low back pain and neck pain in frequency, with point prevalence estimates ranging from nine to twenty-six percent across community-based studies and lifetime prevalence approaching sixty-seven percent in some population cohorts. The condition imposes a substantial burden upon affected individuals, compromising occupational performance, limiting participation in activities of daily living, disrupting sleep architecture, and generating clinically significant psychological sequelae including anxiety and depression in a proportion of patients with persistent or recurrent presentations. From a healthcare systems perspective, shoulder pain syndrome generates considerable direct costs through consultations, diagnostic investigations, and therapeutic interventions, as well as indirect costs attributable to absenteeism, reduced workplace productivity, and long-term disability. The aggregate socioeconomic impact of shoulder disorders is therefore substantial, positioning effective conservative management — including physiotherapeutic intervention — as a priority concern for healthcare providers, policymakers, and rehabilitation researchers alike.

The anatomical and biomechanical complexity of the shoulder complex is a principal contributor to both the high prevalence of shoulder pain syndrome and the significant heterogeneity that characterises its clinical presentation. The glenohumeral joint sacrifices osseous stability in the service of the extraordinary range of motion demanded of the upper limb; the relatively shallow glenoid fossa and the absence of intrinsic bony congruence necessitate a sophisticated system of dynamic muscular stabilisation and passive capsuloligamentous restraint that must operate in precisely coordinated sequence across multiple planes and velocities of movement. The rotator cuff musculature — comprising the supraspinatus, infraspinatus, teres minor, and subscapularis — serves as the primary dynamic stabiliser of the glenohumeral joint and the principal mechanism through which humeral head translation is controlled during functional movement. When the coordinated activity of these muscles is disrupted through degeneration, acute injury, neuromuscular inhibition, or adverse mechanical loading secondary to postural dysfunction or scapulothoracic dyskinesis, the conditions for pathological tissue stress are established, and shoulder pain syndrome, in one of its many clinical manifestations, may result. The umbrella term shoulder pain syndrome encompasses a spectrum of distinct but frequently coexisting pathological entities, including subacromial impingement syndrome, rotator cuff tendinopathy and tear, adhesive capsulitis, acromioclavicular joint dysfunction, and glenohumeral instability, each sharing pain and functional limitation as the cardinal features of clinical presentation while differing substantially in underlying pathomechanical mechanisms and optimal therapeutic strategies.

Conservative physiotherapeutic management constitutes the recommended first-line treatment for the majority of shoulder pain syndrome presentations, with surgical intervention reserved for cases refractory to sustained and appropriately directed conservative care. Within the broad spectrum of physiotherapeutic modalities available to the clinician, kinesiotaping and manual therapy have attracted particular attention over recent decades, both in clinical practice and in the scientific literature. Kinesiotaping, the application of an elastic adhesive tape to the skin surface, was developed by the Japanese chiropractor Kenzo Kase during the 1970s as a technique designed to support musculoskeletal healing whilst preserving, rather than restricting, functional movement.^[4] The modality gained widespread international recognition following its prominent use by multiple national athletic teams at the 2008 Beijing Olympic Games, after which it experienced rapid dissemination into musculoskeletal physiotherapy practice across diverse clinical populations and diagnostic categories. Manual therapy, encompassing a broad range of skilled passive movement techniques applied by the physiotherapist to joints and soft tissues, has a substantially longer tradition within orthopaedic physiotherapy, with formal clinical classification frameworks, evidence-based protocols, and international professional standards developed over several decades. Both modalities are extensively employed in clinical practice for the management of shoulder pain syndrome, yet the relative effectiveness of each approach — and the patient and clinical characteristics that might optimally guide the selection of one over the other — remain incompletely elucidated in the published research literature.

The research problem addressed by the present thesis emerges directly from this clinical and scientific context. Despite the widespread utilisation of both kinesiotaping and manual therapy in physiotherapeutic management of shoulder pain syndrome, and despite a growing body of randomised controlled trials and systematic reviews examining each modality independently, the comparative effectiveness of these two interventions has not been comprehensively synthesised in a manner that accounts for the full range of relevant outcome domains, the heterogeneity of shoulder pain syndrome as a diagnostic category, and the methodological considerations that qualify the interpretation of the available evidence. Clinicians face a genuine decision-making challenge: when confronted with a patient presenting with shoulder pain syndrome, on what basis should the selection between kinesiotaping, manual therapy, or a combination of both be determined? Current clinical guidelines offer only partial guidance in response to this question, and the evidence base, whilst substantial in volume, is characterised by methodological inconsistency, heterogeneity in intervention protocols, and variability in outcome measurement that limits the strength of conclusions that can be confidently drawn.

The aim of the present thesis is, accordingly, to undertake a structured comparative analysis of the clinical effectiveness of kinesiotaping and manual therapy in shoulder pain syndrome across three principal outcome domains: pain intensity, range of motion, and functional disability. This aim is pursued through a critical evaluation of the theoretical mechanisms proposed to explain the therapeutic effects of each modality, an appraisal of the empirical evidence from randomised controlled trials and systematic reviews examining each intervention in shoulder pain populations, and a synthesis of comparative findings that considers both the similarities and the differences in clinical outcomes attributable to each approach. A secondary aim of the thesis is to identify the patient characteristics, diagnostic subcategories, and clinical contexts in which each modality may be expected to confer greatest benefit, and to delineate the methodological improvements necessary to generate a more definitive and clinically actionable evidence base in this field. Through the achievement of these aims, the present thesis aspires to provide a resource that is of practical utility to physiotherapy clinicians in their day-to-day decision-making, as well as a critical summary of the current state of knowledge that may inform the design and conduct of future research.

The methodological approach adopted in the present thesis is that of a structured narrative literature review. This design was selected in preference to formal meta-analytic synthesis on account of the considerable heterogeneity that characterises the available evidence base. Variation in the diagnostic criteria applied to shoulder pain syndrome across primary studies, differences in the specific techniques employed under the broad categories of kinesiotaping and manual therapy, divergence in the outcome measurement instruments selected, and inconsistency in the timing of follow-up assessments collectively preclude the statistical pooling of data that meta-analytic methods require. A structured narrative approach, guided by a pre-specified electronic database search strategy, explicit inclusion and exclusion criteria, and systematic quality appraisal using validated methodological tools including the PEDro scale for randomised controlled trials and AMSTAR-2 for systematic reviews, was therefore judged the most epistemologically appropriate design for the purposes of this thesis. The electronic databases searched comprised PubMed/MEDLINE, the Physiotherapy Evidence Database, CINAHL, the Cochrane Library, and Embase. Searches were restricted to studies published between January 2010 and June 2025, a period selected to capture the contemporary evidence base in which standardised kinesiotaping application protocols and validated manual therapy classification frameworks had been sufficiently developed and formally evaluated. Studies were included if they were randomised controlled trials or systematic reviews with or without meta-analysis examining kinesiotaping or manual therapy — or both — as primary interventions in adult populations with a primary clinical diagnosis within the shoulder pain syndrome spectrum, reporting at least one of the principal outcome domains of interest.

The structure of the present thesis reflects the sequential analytical framework through which the central research question is addressed. Chapter One provides a comprehensive examination of the anatomy, biomechanics, and pathophysiology of the shoulder complex and shoulder pain syndrome, establishing the structural and functional foundations necessary for the interpretation of the therapeutic mechanisms and clinical evidence presented in subsequent chapters; particular attention is directed to the anatomical basis of the principal diagnostic entities subsumed under the term shoulder pain syndrome, the biomechanical consequences of rotator cuff dysfunction and scapulothoracic dyskinesis, and the diagnostic assessment frameworks employed to classify and evaluate patients presenting with shoulder pain in clinical and research settings.

Chapter Two presents the theoretical foundations and evidence base of kinesiotaping and manual therapy as distinct but related physiotherapeutic modalities. The chapter opens with a detailed examination of the principal mechanisms proposed to account for the clinical effects of kinesiotaping — including the skin-lift hypothesis, neurosensory facilitation, mechanical support, and pain gate modulation — before proceeding to a critical appraisal of the empirical evidence for these mechanisms and of the clinical outcomes demonstrated in randomised controlled trials and systematic reviews within shoulder pain populations. The second half of the chapter examines manual therapy in analogous depth, encompassing the joint mobilisation and manipulation techniques most extensively investigated in shoulder pain syndrome, the neurophysiological and biomechanical mechanisms proposed to explain their effects, the evidence from high-quality randomised controlled trials and meta-analyses, and the considerations that govern appropriate technique selection and safe clinical application. The chapter concludes with a methodological section examining the outcome measurement frameworks most commonly employed in comparative effectiveness research in shoulder pain rehabilitation, providing the conceptual tools necessary for the critical evaluation undertaken in Chapter Three.

Chapter Three constitutes the comparative analytical core of the thesis, presenting a structured evaluation of the relative effectiveness of kinesiotaping and manual therapy across the three principal outcome domains of pain intensity, range of motion, and functional disability. The chapter begins with a detailed account of the methodology of the literature review, including the search strategy, inclusion and exclusion criteria, and quality appraisal process, before proceeding to a domain-by-domain comparative synthesis of the available evidence. Within each outcome domain, the findings from the highest-quality primary trials and systematic reviews are critically evaluated, similarities and differences in the clinical effects of each modality are identified and interpreted in the context of their underlying mechanisms of action, and the methodological limitations that qualify the strength of conclusions are explicitly acknowledged. The chapter additionally examines the evidence bearing on the relative efficacy of combined kinesiotaping and manual therapy protocols compared with either intervention administered in isolation, and discusses the patient and clinical characteristics that may predict differential responsiveness to each modality, including diagnostic subcategory, chronicity, baseline severity, scapular kinematic profile, and activity participation demands. The chapter concludes with a delineation of the key methodological improvements — in trial design, intervention standardisation, outcome measurement, and mechanistic investigation — that are required to generate a more definitive and clinically actionable evidence base for comparative effectiveness research in this field.

The Conclusion synthesises the principal findings of the thesis across all three analytical dimensions, draws substantive conclusions regarding the relative clinical utility of kinesiotaping and manual therapy in shoulder pain syndrome, identifies the conditions and patient characteristics under which each modality may be expected to confer greatest benefit, and articulates the implications of the current evidence for clinical decision-making and future research directions. The thesis as a whole aspires to demonstrate that the binary question of which intervention is superior is less clinically informative than the more nuanced question of which modality, applied to which patient, in which clinical context, and in what combination, is most likely to produce the greatest improvement in pain, movement, and functional participation — a question that the available evidence permits to be addressed only partially, but with sufficient depth and precision to be of genuine utility to the clinician engaged in evidence-based practice.

Chapter 1. Anatomy, Biomechanics, and Pathophysiology of Shoulder Pain Syndrome

1.1. Anatomical Structure of the Shoulder Complex

The shoulder complex represents one of the most mechanically sophisticated regions of the human musculoskeletal system. Its extraordinary range of motion is achieved through the integration of osseous architecture, multiple articulations, dynamic muscular stabilisers, and a system of passive restraints that must operate in precise and coordinated sequence. An understanding of this anatomical complexity is prerequisite to any rigorous analysis of the pathological conditions that give rise to shoulder pain syndrome.

The osseous architecture of the shoulder complex comprises three primary bones. The proximal humerus presents a spherical humeral head with a radius of approximately 30 millimetres, oriented in approximately 130–150 degrees of neck-shaft angle and 20–30 degrees of retroversion. The greater and lesser tuberosities serve as attachment sites for the rotator cuff musculature and are separated by the intertubercular (bicipital) groove, through which the tendon of the long head of the biceps brachii passes. The anatomical neck marks the margin of the articular cartilage, while the surgical neck, the region just distal to the tuberosities, represents a common fracture site. The glenoid fossa, positioned on the superolateral aspect of the scapular body, is relatively shallow — measuring approximately 35 mm in vertical diameter and 25 mm in horizontal diameter — with only 4–5 mm of cartilage depth. It is oriented slightly superiorly (approximately 5 degrees) and anteriorly (approximately 7 degrees) relative to the plane of the scapula. The clavicle, an S-shaped bone functioning as a structural strut, transmits forces from the upper limb to the axial skeleton and serves as an origin point for muscles influencing both neck and shoulder function.

The shoulder complex encompasses three true synovial articulations and one functional articulation. The glenohumeral joint (GHJ) constitutes the primary ball-and-socket joint of the shoulder and is responsible for the majority of arm elevation and rotation. Its shallow glenoid, conferring mobility at the expense of inherent bony stability, necessitates dependence upon dynamic muscular and passive ligamentous constraints. The acromioclavicular joint (ACJ) is a plane synovial joint permitting scapular rotation relative to the clavicle; it is reinforced by the acromioclavicular ligament superiorly and the coracoclavicular ligaments (trapezoid and conoid) inferiorly. The sternoclavicular joint, the sole bony articulation between the upper limb and the axial skeleton, is a saddle-type synovial joint allowing elevation, depression, protraction, retraction, and axial rotation of the clavicle. The scapulothoracic articulation is not a true synovial joint but rather a functional interface between the anterior scapular surface and the posterior thoracic cage, permitting the large excursions of scapular motion necessary for full arm elevation.

The rotator cuff comprises four muscles — supraspinatus, infraspinatus, teres minor, and subscapularis — whose tendons coalesce to form a continuous musculotendinous sleeve enveloping the humeral head. The supraspinatus originates from the supraspinous fossa and inserts upon the superior facet of the greater tuberosity; it initiates glenohumeral abduction and, critically, generates a compressive force that depresses the humeral head within the glenoid, preventing superior migration. The infraspinatus arises from the infraspinous fossa and inserts upon the middle facet of the greater tuberosity; it is the primary external rotator of the humerus, producing approximately 60% of total external rotation torque, and contributes to posterior glenohumeral stabilisation.^{[10, s. 3]} The teres minor originates from the lateral border of the scapula and inserts upon the inferior facet of the greater tuberosity; it functions synergistically with the infraspinatus in external rotation and provides inferior stabilisation. The subscapularis, the largest and most powerful rotator cuff muscle, arises from the subscapular fossa and inserts upon the lesser tuberosity; it generates internal rotation force and constitutes the primary anterior dynamic stabiliser of the glenohumeral joint. These four muscles collectively function through a compression mechanism, generating forces that maintain the humeral head centred within the glenoid during dynamic activities.

The superficial prime movers of the shoulder include the deltoid, trapezius, serratus anterior, pectoralis major, and latissimus dorsi. The deltoid, comprising anterior, middle, and posterior heads originating from the clavicle, acromion, and scapular spine respectively, is the primary elevator of the arm; however, its superiorly directed force vector requires rotator cuff counter-balance to prevent superior humeral migration. The trapezius, divided into upper, middle, and lower portions, controls scapular elevation, retraction, and downward/upward rotation respectively; the lower trapezius is particularly important as it produces the upward rotation necessary for full arm elevation. The serratus anterior, innervated by the long thoracic nerve, protracts and upwardly rotates the scapula; its weakness or paralysis results in scapular winging and loss of effective arm elevation.

Passive restraints of the shoulder include the glenohumeral ligaments, the coracoacromial arch, and the glenoid labrum. The glenohumeral ligaments — superior (SGHL), middle (MGHL), and inferior (IGHL) — are thickenings of the anterior glenohumeral joint capsule. The inferior glenohumeral ligament complex, with its anterior and posterior bands and axillary pouch, constitutes the primary anterior stabiliser of the shoulder at 90 degrees of abduction. The coracoacromial ligament, spanning between the coracoid process and the acromion, forms the roof of the coracoacromial arch through which the supraspinatus tendon passes. The glenoid labrum is a fibrocartilaginous ring adherent to the glenoid rim that effectively deepens the glenoid cavity by approximately 50%, increases contact area, and provides a vacuum-seal mechanism that enhances glenohumeral stability. The subacromial-subdeltoid bursa, the largest bursa in the body, lies between the inferior surface of the acromion and the coracoacromial ligament above, and the rotator cuff and greater tuberosity below; it reduces frictional forces during arm elevation and is frequently implicated in the inflammatory cascade of subacromial impingement.

1.2. Biomechanical Principles of Shoulder Function

The kinematics of arm elevation have been studied extensively using three-dimensional motion analysis techniques. Flexion in the sagittal plane and abduction in the frontal plane both typically achieve 170–180 degrees in healthy adults. Elevation in the scapular plane — termed scaption, occurring approximately 30–45 degrees anterior to the frontal plane — represents the most functionally relevant and biomechanically advantageous plane of arm elevation, as it aligns the glenohumeral joint capsule optimally and requires least impingement upon the coracoacromial arch. In each of these planes, total elevation is the product of motion occurring simultaneously at the glenohumeral, scapulothoracic, acromioclavicular, and sternoclavicular articulations.

The scapulohumeral rhythm describes the coordinated ratio of glenohumeral to scapulothoracic motion during arm elevation. The classical ratio, first described by Inman and colleagues, is 2:1 — for every two degrees of glenohumeral elevation, one degree of scapular upward rotation occurs — yielding a total of approximately 120 degrees at the glenohumeral joint and 60 degrees of scapulothoracic motion for full 180-degree elevation. However, this ratio is phase-dependent: during the early phase of elevation (0–30 degrees of abduction or 0–60 degrees of flexion), glenohumeral motion predominates with relatively little scapular movement, as the scapula is in a setting phase. In the later phase, scapular upward rotation accelerates and contributes increasingly to total elevation. The acromioclavicular joint contributes approximately 20–30 degrees of scapular upward rotation relative to the clavicle, while the sternoclavicular joint permits clavicular elevation of approximately 30–35 degrees and posterior axial rotation of 40–50 degrees during full arm elevation; the latter motion is essential for unimpeded scapular upward rotation.

A biomechanically important coupled motion occurs during glenohumeral abduction: as the arm rises in the frontal plane, obligatory external rotation of the humerus is generated. This external rotation, ranging from approximately 25 to 55 degrees, serves to rotate the greater tuberosity posteriorly, preventing its impingement against the anteroinferior surface of the acromion and the coracoacromial ligament. The subacromial space, defined as the distance between the inferior surface of the acromion and the superior aspect of the humeral head, normally measures 9–10 millimetres at rest. Dynamic reduction of this space occurs during internal rotation, with certain acromial morphologies, and in the presence of rotator cuff insufficiency or scapular dyskinesis.

The rotator cuff force-couple is a fundamental concept in shoulder biomechanics. The deltoid generates a large superiorly directed force vector during arm elevation, which, if unopposed, would produce superior humeral migration and subacromial impingement. The inferior rotator cuff muscles — infraspinatus, teres minor, and subscapularis — produce inferiorly and compressively directed vectors that counterbalance the deltoid's superior pull, maintaining the humeral head centred within the glenoid throughout elevation. This force-couple mechanism explains why isolated rotator cuff weakness, even in the absence of full-thickness tear, predisposes to superior humeral migration and impingement. The supraspinatus contributes a compressive vector and is essential for initiation of abduction, but its role in humeral head depression is less significant than that of the inferior cuff muscles.

Scapular dyskinesis refers to alterations in the normal position or motion patterns of the scapula during arm elevation. The Kibler classification describes three types: Type I, characterised by prominence of the inferior scapular angle due to inadequate lower trapezius control; Type II, characterised by prominence of the entire medial scapular border; and Type III, involving anterior tilt and superior coracoid displacement due to pectoralis minor tightness. Scapular dyskinesis reduces the subacromial space by limiting scapular upward rotation and increasing acromial downward tilt during elevation, thereby directly contributing to impingement pathomechanics. Additionally, it alters the length-tension relationships of the rotator cuff, reducing its stabilising efficacy.

The upper limb functions as part of a kinetic chain extending from the ground contact points through the lower limbs, pelvis, lumbar spine, and thorax to the glenohumeral joint. Lumbopelvic stability, thoracic extension mobility, and scapular positioning are prerequisites for optimal force transfer to the shoulder. Deficits in any proximal segment alter the mechanical demands placed upon the glenohumeral joint and rotator cuff, increasing injury risk particularly during overhead athletic activities. This kinetic chain perspective is clinically relevant: thoracic hyperkyphosis, for example, produces anterior scapular tilt, reduces subacromial clearance, and is strongly associated with subacromial impingement syndrome.

Scapulohumeral Rhythm and Subacromial Space Dynamics During Arm Elevation

• 0°–30° (Setting Phase): Predominantly glenohumeral motion (2:1 ratio not yet established); subacromial space ~9–10 mm; minimal scapular upward rotation
• 30°–90° (Acceleration Phase): 2:1 GHJ:ST ratio established; coupled external rotation prevents greater tuberosity impingement; subacromial space maintained by rotator cuff compression
• 90°–150° (Full Elevation Phase): Increasing scapulothoracic contribution; clavicular posterior rotation at SCJ permits continued scapular upward rotation; external rotation maximal ~45°
• 150°–180° (End Range): Near-total ACJ contribution exhausted; GHJ capsular laxity allows final degrees; subacromial space preserved only with full rotator cuff activation

1.3. Aetiology and Classification of Shoulder Pain Syndrome

Shoulder pain syndrome encompasses a heterogeneous group of pathological conditions sharing the common clinical presentation of pain, restricted motion, and functional disability at the shoulder girdle. The most prevalent aetiologies include subacromial impingement syndrome, rotator cuff pathology, adhesive capsulitis, myofascial pain syndrome, bicipital tendinopathy, and acromioclavicular arthropathy. These conditions may present in isolation or, more frequently in clinical practice, in overlapping and co-occurring combinations.

Subacromial impingement syndrome results from mechanical compression of the subacromial contents — primarily the supraspinatus tendon and the subacromial bursa — between the superior humeral head and the coracoacromial arch. The Neer classification, representing one of the earliest and most clinically applied systems, describes three progressive stages: Stage I involves reversible oedema and haemorrhage of the supraspinatus tendon, typically occurring in individuals under 25 years of age following repetitive overhead activity; Stage II, occurring in the 25–40 year age range, is characterised by tendon fibrosis and tendinitis with thickening of the bursa; Stage III, most prevalent after the age of 40, involves the formation of anterior acromial spurs, partial or complete rotator cuff tears, and bicipital tendon changes. A clinically important distinction exists between primary and secondary impingement: primary impingement results from structural narrowing of the subacromial space due to acromial morphology (Bigliani Type III hooked acromion carries the highest risk), os acromiale, or inferior acromioclavicular osteophytes; secondary impingement arises from dynamic narrowing attributable to rotator cuff weakness, glenohumeral instability, or scapular dyskinesis in the absence of structural subacromial narrowing.

Rotator cuff pathology is best conceptualised as a continuum rather than discrete entities. The continuum progresses from reactive tendinopathy — an acute non-inflammatory cellular response to mechanical overload — through tendon disrepair, in which failed matrix remodelling leads to disorganisation of collagen fibrils and neovascularisation, to degenerative tendinopathy characterised by hypocellularity, loss of tenocyte nuclei, and accumulation of proteoglycans. Partial-thickness tears are classified by location (articular surface versus bursal surface; the articular surface is more commonly affected, with a ratio of approximately 3:1) and extent (expressed as a percentage of tendon thickness or in millimetres of depth). Full-thickness tears, in which a communication exists between the glenohumeral joint and the subacromial bursa, are classified by size: small (less than 1 cm), medium (1–3 cm), large (3–5 cm), and massive (greater than 5 cm or involving two or more tendons). The size classification carries direct prognostic and therapeutic implications, as large and massive tears are associated with poorer surgical outcomes and higher re-tear rates.

Adhesive capsulitis, also termed frozen shoulder, is characterised by a progressive, painful restriction of both active and passive glenohumeral motion, resulting from synovial inflammation and subsequent fibrosis of the joint capsule. The condition follows a well-described three-stage clinical course: the painful phase (Stage 1), lasting approximately 3–9 months, is dominated by diffuse aching pain and early motion loss due to synovial hyperplasia and increased vascularity; the adhesive phase (Stage 2), lasting 9–15 months, involves progressive capsular fibrosis with deposition of type I and type III collagen, myofibroblast proliferation, formation of a hypovascular synovial pannus, and marked restriction of all planes of glenohumeral motion; the resolution phase (Stage 3), lasting 15–24 months, is characterised by gradual spontaneous recovery of motion, though residual deficit may persist in a subset of patients. At the molecular level, pathogenesis involves dysregulated fibrogenic cytokines including transforming growth factor-beta, substance P, and mast cell-derived mediators. The diabetic subtype of adhesive capsulitis is clinically distinct: it occurs in approximately 10–20% of diabetic patients, tends to be bilateral in 40% of cases, is more resistant to conservative management, and requires longer time to resolution.^{[11, s. 37]}

Myofascial pain syndrome of the shoulder girdle is characterised by the presence of myofascial trigger points — hyperirritable spots within taut bands of skeletal muscle that reproduce the patient's familiar referred pain pattern upon compression. According to the integrated trigger point hypothesis, trigger points develop from dysfunctional motor end-plates generating sustained acetylcholine release, sarcomere contracture, local ischaemia, and accumulation of sensitising nociceptive substances. The upper trapezius muscle is the most commonly implicated muscle in shoulder girdle myofascial pain, with a referral pattern extending to the posterolateral neck and occiput. The infraspinatus refers pain to the anterior shoulder and arm, frequently mimicking rotator cuff pathology or even cervical radiculopathy. Levator scapulae trigger points refer pain to the angle of the neck and medial scapular border.

Bicipital tendinopathy primarily affects the proximal portion of the long head of the biceps brachii tendon at its origin from the supraglenoid tubercle and superior glenoid labrum. The tendon's intra-articular course renders it vulnerable to the same mechanical and degenerative forces affecting the rotator cuff, and bicipital tendinopathy rarely occurs in isolation — it is associated with rotator cuff tears in 30–50% of cases, and with superior labrum anterior to posterior (SLAP) lesions in a significant subset of patients. Acromioclavicular joint arthropathy, developing through degenerative changes of the fibrocartilaginous disc and articular surfaces of the ACJ, becomes prevalent after the fifth decade. Inferior acromioclavicular osteophytes may narrow the subacromial space and contribute to rotator cuff pathology, while superior osteophytes may impinge upon the superior trapezius.

Table 1.1. Classification and Pathological Features of Principal Shoulder Pain Syndrome Aetiologies

Condition	Primary Pathology	Classification System	Key Structures Involved	Typical Age Group
Subacromial Impingement	Mechanical compression of supraspinatus tendon and bursa	Neer Stages I–III; Primary vs. Secondary	Supraspinatus tendon, subacromial bursa, acromion	25–60 years
Rotator Cuff Tear	Collagen disruption; partial or full-thickness defect	Articular/bursal; Small/Medium/Large/Massive	Supraspinatus (most common), infraspinatus, subscapularis	>40 years; degenerative >60
Adhesive Capsulitis	Synovial fibrosis; type I/III collagen deposition	Stages 1 (Painful), 2 (Adhesive), 3 (Resolution)	Glenohumeral capsule, axillary recess, rotator interval	40–60 years
Myofascial Pain Syndrome	Trigger points in taut muscle bands	Active vs. Latent; Primary vs. Secondary	Upper trapezius, infraspinatus, levator scapulae	All ages; peaks 30–50
Bicipital Tendinopathy	Tendon degeneration; SLAP lesions	Paget-Schroetter grading; SLAP types I–X	Long head biceps tendon, superior labrum	30–60 years
ACJ Arthropathy	Degenerative disc and articular cartilage changes	Rockwood Classification (traumatic); radiographic grading	Acromioclavicular joint, fibrocartilaginous disc	>50 years

1.4. Epidemiology and Socioeconomic Impact

Shoulder pain is recognised as the third most common musculoskeletal complaint in adult populations, following low back pain and neck pain, and constitutes a major source of disability in industrialised societies. ^{[1, s. 2]} Point prevalence estimates in the general adult population range from 7 to 27%, with variation attributable to differences in case definition, study population, and methodological approaches. Lifetime prevalence may be as high as 67%, reflecting the high propensity for recurrence and chronification. Annual incidence in primary care settings has been estimated at approximately 15 new episodes per 1,000 adults.

Age-specific trends are well established. The prevalence of shoulder pain rises progressively with advancing age, with a particularly marked increase after the fifth decade. Asymptomatic rotator cuff tears, identified on magnetic resonance imaging (MRI) or ultrasound in individuals without shoulder complaints, affect approximately 25% of those in their sixties, rising to approximately 50% in those aged over 80 years, indicating that degenerative rotator cuff pathology is a near-universal phenomenon of advanced ageing. Adhesive capsulitis demonstrates a distinct age peak between 40 and 60 years, with an overall prevalence of 3–5% in the general population. Subacromial impingement syndrome predominates in the working-age population, contributing disproportionately to occupational disability and healthcare utilisation.

Sex differences exist for certain shoulder conditions. Adhesive capsulitis affects women approximately three times more frequently than men, possibly related to hormonal influences on collagen metabolism and immune regulation. Impingement syndrome and rotator cuff pathology show a more equal sex distribution, though occupational exposure patterns influence apparent sex-specific rates. The shoulder conditions imposing the greatest burden on chronic pain morbidity — particularly those involving multi-joint involvement or bilateral presentation — are associated with significant functional disability that extends beyond the shoulder itself, impairing sleep, mood, and overall quality of life in a manner consistent with the biopsychosocial model of chronic musculoskeletal pain. ^{[1, s. 2]}

Occupational and activity-related risk factors are well documented. The following occupational and recreational exposures are associated with substantially increased risk of shoulder pain:

• Repetitive overhead work sustained for more than two hours per day, including construction trades (plastering, painting, tiling), electrical installation, and ceiling work
• Healthcare occupations involving patient handling, particularly nursing and physiotherapy, where repeated shoulder loading occurs in asymmetric postures
• Overhead sports including competitive swimming (shoulder pain affects 40–91% of elite swimmers), handball, baseball pitching, tennis serving, and volleyball
• Occupational vibration exposure through power tools, heavy machinery, or forestry equipment, which contributes to rotator cuff microvascular damage
• Psychosocial work factors including low job control, high psychological demand, and poor social support, which are independently associated with both onset and chronification of shoulder pain

The socioeconomic burden of shoulder pain is substantial. Chronic shoulder pain conditions impose significant direct healthcare costs — encompassing general practitioner consultations, physiotherapy episodes, diagnostic imaging, corticosteroid injections, and surgical interventions — as well as indirect costs through work absenteeism and reduced productivity. ^[1] The indirect cost burden frequently exceeds direct healthcare expenditure, particularly in working-age populations with occupationally demanding roles. Shoulder disorders are among the most common causes of sickness absence from physically demanding employment, with individual episodes often lasting weeks to months. Moreover, the tendency of shoulder pain to recur and chronify — with a recurrence rate estimated at 40–50% within two years of initial presentation — amplifies the long-term economic impact.

The impact of chronic shoulder pain on activities of daily living (ADL) encompasses dressing, personal hygiene, hair grooming, reaching overhead, carrying objects, and driving. Sleep disturbance is reported by 50–80% of patients with rotator cuff pathology, as nocturnal pain in the affected shoulder disrupts sleep initiation and maintenance. The fear-avoidance model, as applied to chronic musculoskeletal pain, posits that catastrophic appraisal of pain leads to avoidance behaviour, progressive physical deconditioning, and perpetuation of disability — a cycle particularly relevant to shoulder pain given the high pain intensity often reported and the critical role of the shoulder in fundamental self-care tasks. ^{[1, s. 2]} Multidisciplinary approaches that address both physical and psychological dimensions are therefore indicated for patients in whom shoulder pain has resulted in chronic disability. ^{[1, s. 2]}

1.5. Diagnostic Assessment Methods

The clinical assessment of shoulder pain syndrome requires a systematic and structured approach integrating subjective history, physical examination, validated outcome measures, and, where indicated, diagnostic imaging. No single diagnostic test provides sufficient sensitivity and specificity for definitive diagnosis of the range of conditions that constitute shoulder pain syndrome; rather, the clinician must synthesise findings from multiple sources to arrive at a working hypothesis that guides management.

Physical examination begins with inspection, in which the examiner observes for visible asymmetry, muscle atrophy (particularly of the supraspinatus and infraspinatus fossae in the presence of rotator cuff tear or suprascapular nerve entrapment), scapular winging, abnormal posture including thoracic kyphosis and forward head position, and any skin changes or swelling. Palpation is systematically conducted over the ACJ, bicipital groove (for bicipital tendinopathy), supraspinatus insertion at the superior facet of the greater tuberosity (typically reproduced at approximately 1 cm medial to the tip of the acromion with the arm in internal rotation), and posterior glenohumeral joint line. Active and passive range of motion (ROM) is assessed by goniometry in flexion, abduction, and internal and external rotation at zero and 90 degrees of abduction; the pattern of restriction provides important diagnostic information — for example, adhesive capsulitis characteristically restricts external rotation most severely, while impingement tends to preserve external rotation in the early stages.

Special orthopaedic tests are employed to provoke specific tissues and aid differential diagnosis. The following are the most clinically validated tests for shoulder assessment:

• Impingement tests: Neer impingement sign (passive flexion with internal rotation, positive if pain reproduced in the anterior-superior shoulder); Hawkins-Kennedy test (arm at 90 degrees flexion with internal rotation, producing internal impingement); painful arc (active pain between approximately 60 and 120 degrees of abduction, suggesting subacromial pathology)
• Rotator cuff integrity tests: Empty-can test (resisted abduction in scaption with internal rotation, assessing supraspinatus); full-can test (resisted abduction in scaption with external rotation); Gerber lift-off test (hand on small of back with internal rotation, assessing subscapularis); external rotation lag sign (assessing infraspinatus/teres minor)
• Bicipital tests: Speed's test (resisted forward flexion with elbow extended and forearm supinated); Yergason's test (resisted supination with elbow at 90 degrees flexion); O'Brien active compression test for SLAP lesions
• Acromioclavicular joint tests: Scarf test (horizontal adduction); ACJ shear test (compression of clavicle against acromion); localised ACJ palpation tenderness
• Glenohumeral instability tests: Apprehension test (external rotation at 90 degrees abduction); relocation test (posterior pressure relieves apprehension); anterior and posterior load and shift; sulcus sign for inferior laxity

Table 1.2. Diagnostic Performance of Selected Special Tests for Shoulder Pain Syndrome Assessment

Test	Target Condition	Sensitivity (%)	Specificity (%)	Clinical Utility
Neer Impingement Sign	Subacromial Impingement	72–79	56–66	Moderate; best used in cluster
Hawkins-Kennedy Test	Subacromial Impingement	79–87	57–66	High sensitivity; low specificity
Empty-Can Test	Supraspinatus Tear	69–89	50–79	Moderate; supplement with full-can
Gerber Lift-Off Test	Subscapularis Tear	62–92	91–98	High specificity; very useful
Speed's Test	Bicipital Tendinopathy	32–69	55–86	Variable; poor standalone value
Apprehension-Relocation Test	Anterior Instability	72–81	85–98	High specificity; use in younger patients
ACJ Scarf Test	ACJ Arthropathy	61–77	70–79	Moderate; confirm with localised tenderness

Standardised pain measurement instruments are essential components of shoulder assessment and include both unidimensional and multidimensional tools. The Visual Analogue Scale (VAS), a 100-millimetre horizontal line anchored by „no pain” and „worst imaginable pain,” and the Numerical Rating Scale (NRS), an eleven-point scale from zero to ten, are widely employed for rapid pain intensity quantification; both demonstrate adequate reliability and responsiveness in musculoskeletal populations. The Brief Pain Inventory (BPI) additionally captures pain interference with functional activities, sleep, and mood, providing a more comprehensive pain profile relevant to multidisciplinary assessment.

Functional outcome measures specific to the shoulder provide standardised, validated assessment of disability and treatment response. The Disabilities of the Arm, Shoulder and Hand questionnaire (DASH) is a 30-item, region-specific outcome measure assessing upper limb disability across a 0–100 scale, where higher scores indicate greater disability; it demonstrates high reliability (intraclass correlation coefficient >0.90) and sensitivity to change. The Shoulder Pain and Disability Index (SPADI) comprises a pain subscale (5 items) and disability subscale (8 items), yielding a composite score; it is particularly responsive in adhesive capsulitis and rotator cuff populations. The Constant-Murley Score is a clinician-administered composite measure incorporating pain, ADL ability, range of motion (ROM), and strength, providing both patient-reported and objective domains. The Oxford Shoulder Score, a 12-item patient-reported outcome measure designed for surgical populations, has demonstrated utility in both operative and conservative management contexts.

Imaging investigations supplement and confirm clinical findings but should not replace structured physical examination. Plain radiography provides assessment of osseous architecture, acromial morphology, acromiohumeral interval (normal ≥7 mm; reduction suggesting rotator cuff compromise), calcific deposits, and glenohumeral arthrosis, but carries limited soft-tissue diagnostic value. Diagnostic ultrasound is the preferred first-line imaging modality for rotator cuff pathology assessment in many healthcare settings: it permits dynamic assessment, is cost-effective, and demonstrates sensitivity and specificity comparable to MRI for full-thickness rotator cuff tears (sensitivity 92–95%, specificity 93–96%). MRI and magnetic resonance arthrography provide superior assessment of labral pathology, cartilage, partial-thickness tears, and bicipital tendon, and constitute the imaging gold standard for pre-surgical planning and complex diagnostic dilemmas.

Chapter 2. Theoretical Foundations and Evidence Base of Kinesiotaping and Manual Therapy

2.1. Principles and Mechanisms of Kinesiotaping

Kinesiotaping (KT) was developed by the Japanese chiropractor Kenzo Kase during the 1970s as a therapeutic modality designed to support musculoskeletal healing without the movement restrictions inherent to conventional rigid athletic taping.^[4] The tape is composed of thin, ventilated, waterproof cotton fibres bonded to a heat-activated 100% acrylic adhesive, engineered to elongate to approximately 120–140% of its resting length, a degree of elastic compliance intentionally selected to approximate the biomechanical properties of human skin and superficial fascia. Following the highly visible use of KT by multiple national athletic teams at the 2008 Beijing Olympic Games, the technique experienced rapid global dissemination into sports medicine, musculoskeletal physiotherapy, and neurological rehabilitation, stimulating a substantial body of clinical and basic science research into its mechanisms of action. According to the Kase classification, taping strips are cut into I, Y, X, fan, or web configurations; I and Y strips are primarily employed for muscle facilitation and inhibition, whilst fan strips are characteristically used to stimulate lymphatic drainage, reduce oedema, and augment sensory input to cutaneous mechanoreceptors.^[4]

Four principal mechanisms have been proposed to explain the therapeutic effects of KT, each with a distinct physiological basis and a variable degree of supporting empirical evidence. The first and most extensively cited is the skin-lift hypothesis, which proposes that tape applied with the underlying tissue in a lengthened position creates mechanical convolutions upon elastic recoil, elevating the epidermis and superficial fascia, and thereby increasing the interstitial space between the skin and subcutaneous tissues.^{[3, s. 3]} This increased interstitial space is proposed to reduce mechanical pressure upon subcutaneous nociceptors and low-threshold mechanoreceptors, attenuating afferent nociceptive input and engaging the gate-control mechanism, as well as recruiting descending pain inhibitory pathways.^{[3, s. 3]} Experimental evidence derived from magnetic resonance imaging analyses has demonstrated that KT produces tissue deformations extending beyond the superficial skin layer to involve deep fascial and muscular compartments, suggesting that the analgesic effect of KT may not be limited to the skin-lifting mechanism but may additionally modulate pain through deep mechanical effects on myofascial force transmission throughout the extremity.^{[3, s. 3]}

The second proposed mechanism involves circulatory and lymphatic enhancement. The skin convolutions created by KT are held to alter the spatial arrangement of superficial capillary networks and lymphatic vessels, facilitating blood and lymphatic flow, reducing local oedema, and promoting the clearance of inflammatory mediators from the extracellular matrix.^{[3, s. 3]} Research conducted on the lumbar region in healthy subjects has shown that fan-strip KT applications increase local skin temperature more substantially than Y-strip or no-taping conditions, consistent with a vasomotor reflex-mediated improvement in microcirculation and consequent dissipation of inflammatory factors, though this conclusion requires clinical corroboration in shoulder-specific populations.^[4] The lymphatic correction technique employing fan-strips applied over the periscapular and deltoid regions without tension is directly derived from this circulatory hypothesis and is particularly employed in post-traumatic and post-operative shoulder rehabilitation where oedema management is a primary clinical concern.

The third mechanism concerns muscle facilitation and inhibition through altered afferent input. The Kase application protocol specifies that taping from a muscle's origin toward its insertion at 25–50% tension facilitates muscle activation, whilst taping from insertion to origin at 15–25% tension inhibits overactive musculature, the rationale being that differential tape tensions modulate the sensitivity of muscle spindles and Golgi tendon organs through altered mechanical loading of the myotendinous and fascial structures to which these mechanoreceptors are anchored. However, experimental investigation of this directional hypothesis in healthy adults, employing surface electromyography, isokinetic dynamometry, and functional performance outcomes including vertical jump and single-leg triple hop distance, found no statistically significant differences between facilitation-direction taping, inhibition-direction taping, and sham taping conditions on quadriceps muscle activation or force output.^[7] These findings suggest that tape application direction may not constitute a determinative variable in healthy, asymptomatic individuals and that the tactile input of KT may be insufficient to produce measurable neuromuscular effects in the absence of pain-related alterations in motor drive.^[7]

The fourth mechanism involves proprioceptive enhancement and postural correction. KT applied across or adjacent to articulations is proposed to enrich cutaneous somatosensory input to the central nervous system, augmenting the continuous updating of joint position sense, kinaesthesia, and neuromuscular coordination.^{[3, s. 5]} Evidence from experimental research on rhythmic motor performance in healthy adults has demonstrated that KT applied to the extensor kinetic chain of the wrist and fingers modulates inter-limb timing asymmetries in synchronisation-continuation tapping tasks, indicating that KT influences central somatosensory processing and temporal motor control beyond simple local mechanical effects.^[5] Additionally, in subjects with incomplete spinal cord injury — a population in which somatosensory afferent input is substantially disrupted — KT application over the ankle plantarflexors produced significant improvements in spasticity, gait kinematics, and stabilometric centre-of-pressure parameters, with concurrent electromyographic changes attributed to enhanced proprioceptive feedback modifying spinal segmental circuitry.^[6] Although these cited studies investigated anatomical sites and clinical populations that differ substantially from orthopaedic shoulder pathology, they provide mechanistic support for the principle that KT modulates somatosensory processing at both peripheral and central levels of the nervous system.

The aggregate clinical evidence for KT in shoulder and related musculoskeletal conditions is synthesised in a 2025 meta-analysis of 17 randomised controlled trials encompassing 959 participants with rotator cuff injuries, which reported a statistically significant reduction in pain with KT compared to control conditions (mean difference −0.94; 95% CI: −1.27 to −0.61; Z = 5.6; p < 0.0001; I² = 75%). The magnitude of this pain reduction approached the minimal clinically important difference for shoulder pain scales, typically estimated at 1.0–1.5 points on VAS or Numerical Rating Scale (NRS), indicating that the observed effect, whilst statistically robust, requires contextual clinical interpretation. Significant improvements in shoulder flexion (mean difference 9.24°) and abduction (mean difference 9.14°) were additionally documented, with both values exceeding the minimal clinically important difference for range of motion in rotator cuff injuries. No significant publication bias was identified in this meta-analysis (Egger's test: p = 0.703; Begg's test: p = 0.584). Nevertheless, the substantial heterogeneity among included studies and the documented similarity of outcomes between therapeutic and sham KT in multiple individual trials underscore the contribution of contextual and placebo effects to reported therapeutic gains, an interpretive consideration applicable to all clinical evaluations of this modality.^{[3, s. 5]}

Mechanism	Physiological Basis	Level of Evidence
Skin-lift / Gate Control	Interstitial decompression → nociceptor pressure reduction → spinal inhibition	Moderate (MRI confirmation of deep deformation)
Circulatory / Lymphatic	Skin convolutions → altered capillary arrangement → oedema reduction	Low–moderate (indirect; healthy population studies)
Muscle Facilitation / Inhibition	Directional tension → altered spindle / GTO afferent input	Low (direction non-significant in healthy adults)
Proprioceptive Enhancement	Cutaneous mechanoreceptor stimulation → enriched CNS somatosensory input	Moderate (experimental motor control and SCI evidence)

2.2. Kinesiotaping Application Techniques in Shoulder Disorders

The clinical application of KT to the shoulder region is governed by the anatomical complexity of the shoulder complex and the specific pathological targets identified during clinical assessment. Across published clinical trials in shoulder disorders, the most commonly employed KT configurations include the Y-strip applied over the deltoid muscle, the supraspinatus facilitation strip, the posterior rotator cuff support strip, scapular stabilisation techniques, and the lymphatic fan correction applied over the periscapular region. The choice of technique, tape tension, direction of application, and number of strips is guided by the therapeutic objective, whether this is pain modulation, oedema reduction, muscle facilitation or inhibition, or scapular positional correction.

In the management of frozen shoulder (adhesive capsulitis), standardised KT application over the glenohumeral joint and periarticular musculature has been demonstrated to produce clinically meaningful outcomes as a stand-alone intervention. In a controlled clinical trial evaluating KT applied to the shoulder joint, a group of 15 subjects with frozen shoulder aged 40–60 years demonstrated statistically significant within-group improvements in shoulder external rotation, abduction, and internal rotation range of motion, as well as significant reduction in Visual Analogue Scale pain scores following the intervention programme (p < 0.0001 for all ROM directions and for pain). Pre-intervention shoulder abduction in the KT group was measured at a mean of 35°, increasing significantly post-intervention (p < 0.0001); pre-intervention external rotation averaged 27°, with significant post-intervention improvement; and pre-intervention internal rotation averaged 40.0°, improving significantly following KT. These within-group findings establish that KT constitutes an active intervention producing measurable physiological changes in this population, rather than a purely passive support modality.

For rotator cuff pathology and subacromial impingement syndrome, specific KT application protocols have been described in the literature, including the following principal techniques:

• Supraspinatus facilitation strip: Y-strip anchored medially over the spine of the scapula, with tape courses directed along the superior and anterior muscle bellies to the tendinous insertion on the greater tuberosity, applied at 25–35% tension with the arm in adduction and internal rotation to pre-lengthen the supraspinatus.^{[12, s. 11]}
• Infraspinatus and teres minor support: I- or Y-strip applied along the posterior muscle bellies from the infraspinous fossa to the posterior aspect of the greater tuberosity, providing mechanical support to the posterior rotator cuff.
• Subacromial space correction: A decompression technique applying a star-pattern or I-strip directly over the projected subacromial region with maximum tension at the central anchor, intended to create focal skin-lift and increase subacromial clearance during humeral elevation.
• Scapular stabilisation: Y-strip or I-strip applied over the lower trapezius and serratus anterior to facilitate posterior tilt and external rotation of the scapula, addressing scapular dyskinesis and restoring normal scapulohumeral rhythm during arm elevation.
• Lymphatic fan correction: Fan-strip applied without tension over the deltoid and periscapular region, directed toward the axillary and cervical lymph nodes, indicated in the acute and post-operative phases when shoulder oedema is a primary clinical concern.

A 2025 meta-analysis of 17 RCTs in rotator cuff injuries found that shoulder flexion improvement with KT demonstrated markedly greater heterogeneity (I² = 91%) compared to shoulder abduction improvement (I² = 38%), a disparity attributed to methodological variation in ROM assessment protocols and the biomechanical complexity of glenohumeral flexion kinematics. This heterogeneity reflects the absence of a single universally adopted application protocol for KT in shoulder disorders and constitutes the most significant methodological challenge in the synthesis of KT evidence. Variations across published trials include the selection of specific tape cuts and application patterns, the degree of applied tension (ranging from 0% in lymphatic applications to 75–100% in maximum-tension decompression techniques), patient positioning during tape application, number of strips, frequency of tape renewal (typically every 3–5 days), and concomitant therapeutic interventions permitted during the trial period.

Absolute contraindications to KT application in the shoulder region include active cutaneous infections or open wounds at the proposed application site, contact dermatitis or documented allergy to acrylic adhesive, active malignancy in the application area, deep vein thrombosis, and severe skin fragility associated with prolonged corticosteroid use or systemic dermatological conditions. Relative precautions specific to the shoulder include caution in patients with recent rotator cuff repair or shoulder arthroplasty, post-mastectomy lymphoedema (where lymphatic taping requires specialist training and close monitoring), acute inflammatory arthropathy such as gout or reactive arthritis, and hypersensitive skin in elderly patients. Adherence to these contraindication criteria is essential for the safe integration of KT into evidence-based shoulder rehabilitation programmes.

2.3. Principles and Classification of Manual Therapy Techniques

Manual therapy (MT) is defined, according to the consensus statements of the American Physical Therapy Association and the International Federation of Orthopaedic Manipulative Physical Therapists, as a specialised form of physical therapy delivered with the hands, encompassing passive movement techniques applied to joints, soft tissues, and neural structures, with the objective of modulating pain, restoring range of motion, reducing muscle hypertonicity, and improving neuromuscular function. Within the context of shoulder disorders, MT encompasses a broad range of techniques classified according to the tissue targeted, the velocity and amplitude of force application, the direction of movement, and the neurophysiological mechanism invoked. The theoretical and classificatory frameworks that underpin contemporary shoulder MT practice draw primarily from three major conceptual systems: the Maitland graded mobilisation concept, the Kaltenborn-Evjenth arthrokinematic system, and the Mulligan concept of Mobilisation with Movement.

The Maitland concept provides one of the most widely adopted frameworks for passive joint mobilisation in clinical practice. Maitland's grading system distinguishes five levels of passive oscillatory movement applied to the target joint:

• Grade I: Small-amplitude oscillations performed at the beginning of the available range, indicated for pain-dominant presentations where sensitised joint mechanoreceptors require low-level stimulation to engage spinal inhibitory mechanisms.
• Grade II: Large-amplitude oscillations performed through the pain-free mid-range without encountering tissue resistance, similarly indicated when pain precedes stiffness at end-range.
• Grade III: Large-amplitude oscillations carried to the limit of the available range, engaging capsular and periarticular tissue restraints, indicated for stiffness with co-existing pain.
• Grade IV: Small-amplitude oscillations at the limit of the available range, primarily targeting stiffness-dominant presentations where end-range tissue compliance is sought.
• Grade V (thrust manipulation): A high-velocity, low-amplitude (HVLA) thrust applied beyond the physiological end-range but within the anatomical limit, producing an audible cavitation event and a brief but marked hypoalgesic effect.

The neurophysiological rationale for Grades I and II rests principally upon stimulation of large-diameter joint mechanoreceptors (Ruffini endings, Pacinian corpuscles) in the fibrous capsule and periarticular ligaments, activating pre-synaptic inhibition of nociceptive input at the dorsal horn consistent with the gate-control theory. Grades III and IV additionally engage viscoelastic creep deformation of the capsule and ligamentous structures, producing lasting extensibility gains, while Grade V manipulation activates supraspinal descending pain modulatory systems through the periaqueductal grey, producing an immediate and region-non-specific hypoalgesic effect documented by reduced pressure pain thresholds both locally and at remote sites.

The Kaltenborn-Evjenth system approaches mobilisation through the lens of arthrokinematics, applying the concave-convex rule to determine the direction of joint glide required to restore restricted physiological movement. At the glenohumeral joint, where the convex humeral head articulates with the concave glenoid fossa, restricted shoulder abduction associated with inferior capsular shortening is addressed with sustained inferior traction and inferior translatory glide of the humerus relative to the glenoid. Kaltenborn traction grades — from Grade I (slack elimination) to Grade III (maximal capsular stretch) — provide a systematic framework for applying longitudinal distraction with progressive intensity. The scientific validity of the concave-convex rule under in vivo conditions has been questioned by kinematic imaging studies demonstrating that glenohumeral arthrokinematics during active and passive movement may not uniformly conform to theoretical predictions; nevertheless, Kaltenborn-derived glide techniques retain a substantial clinical evidence base for the management of glenohumeral hypomobility.

The Mulligan concept of Mobilisation with Movement (MWM) represents a third paradigm within MT for the shoulder. MWM is defined as the concurrent application of a sustained accessory glide to a joint by the therapist while the patient performs an active physiological movement that was previously painful or restricted. The fundamental criterion for MWM is the immediate abolition or substantial reduction of pain during the active movement when the accessory glide is correctly applied; if pain persists, the direction, magnitude, or plane of the glide is systematically modified. The neurophysiological basis of MWM is proposed to involve a combination of correction of positional faults — minor intra-articular incongruencies arising following injury or cumulative microtrauma — and neurophysiological pain inhibition through altered mechanoreceptor afferent input during combined accessory and physiological movement. The proposal that Mulligan mobilisation with movement achieves its effects through the reversal of positional faults within the joint has been advanced in clinical research evaluating MWM for frozen shoulder.^[2]

Soft tissue techniques subsumed under the MT umbrella — including myofascial release, trigger point pressure release, and instrument-assisted soft tissue mobilisation — are distinguished from articular techniques by their target tissue and application principles. Myofascial release applied to the posterior shoulder capsule, the coracohumeral ligament, the thoracolumbar fascia via the latissimus dorsi, and the pectoralis minor restores fascial extensibility and improves glenohumeral and scapulothoracic mobility. Trigger point pressure release, delivered as sustained ischaemic compression to hyperirritable foci in the infraspinatus, supraspinatus, subscapularis, upper trapezius, and pectoralis minor, targets the referred pain patterns and local muscle hypertonicity that contribute to the complex clinical presentation of shoulder pain syndromes.

2.4. Manual Therapy Protocols Applied to the Shoulder

The translation of manual therapy principles into specific clinical protocols for shoulder pain syndromes requires careful consideration of the patient's pathological diagnosis, clinical presentation, stage of condition, and the primary impairment identified in assessment. Evidence-based MT protocols typically combine articular mobilisation with soft tissue techniques, neurodynamic mobilisation where indicated, and increasingly, thoracic spine interventions reflecting the principle of regional interdependence, with technique selection and progression guided by patient response at each treatment session.

Glenohumeral joint mobilisation techniques are delivered in a variety of patient positions and movement planes, each selected to address a specific capsular restriction. Inferior glide mobilisation, performed with the patient supine and the shoulder in 30–60° of abduction in the scapular plane, applies a longitudinal inferior force to the proximal humerus to restore the inferior capsular extensibility required for full arm elevation; this technique is particularly indicated when a firm capsular end-feel is encountered at the end-range of abduction. Posterior glide mobilisation, performed with the arm supported at 90° of flexion in the scapular plane, applies a posteriorly directed force to the anterior aspect of the humeral head, targeting the anterior capsule and coracohumeral ligament, and is commonly employed in subacromial impingement syndrome where anterior capsular shortening contributes to reduced external rotation and subacromial encroachment during arm elevation. Anterior glide mobilisation in the scapular plane targets posterior capsular tightness — the most consistently identified intra-articular restriction in adhesive capsulitis and following prolonged shoulder immobilisation — and is performed with the patient in side-lying with an anteriorly directed force delivered to the posterior humeral head. These three glide directions, applied at the appropriate Maitland grade for the clinical presentation, constitute the core articular mobilisation programme for glenohumeral hypomobility.

The Mulligan MWM technique for frozen shoulder has been subjected to comparative clinical evaluation against KT. In a study of 30 subjects with frozen shoulder aged 40–60 years, randomly allocated to MWM (Group A, n = 15) or KT (Group B, n = 15), inter-group analysis demonstrated that MWM was significantly more effective than KT in improving shoulder range of motion (abduction, external rotation, and internal rotation) and reducing VAS pain scores (p < 0.0001 for all inter-group comparisons). The superiority of MWM was attributed to its direct mechanical action in reversing positional faults within the glenohumeral joint, thereby restoring normal arthrokinematic relationships and enabling pain-free physiological movement, consistent with the theoretical basis of the Mulligan concept.^[2] Both interventions produced statistically significant within-group improvements, confirming the therapeutic validity of each approach as a component of conservative shoulder rehabilitation.

Thoracic spine mobilisation and manipulation has gained recognition as an important indirect intervention for shoulder pain through the principle of regional interdependence. Upper thoracic HVLA manipulation in the sitting position — delivering a rotational or longitudinal distraction thrust to the upper thoracic segments — has been associated with immediate hypoalgesic effects and improvements in shoulder ROM in subjects with shoulder impingement syndrome, attributed to facilitation of descending pain inhibitory pathways and normalisation of upper thoracic mobility, which in turn reduces the mechanical constraint on scapulothoracic motion during arm elevation. Cervicothoracic junction mobilisation additionally addresses the contribution of segmental hypomobility at the C7–T1 level to referred pain and altered neuromuscular patterning in the shoulder girdle. This regional approach broadens the MT treatment paradigm from a purely local joint model to a comprehensive assessment and treatment framework encompassing the entire cervicothoracic-shoulder kinetic chain.^{[13, s. 108]}

Table 2.1. Classification of principal manual therapy techniques for shoulder pain disorders: target tissue, therapeutic grade, and proposed neurophysiological mechanism

Technique	Classification	Primary Target	Proposed Mechanism	Primary Indication (Shoulder)
Maitland Grades I–II Oscillations	Articular; pain-dominant	Joint mechanoreceptors, nociceptors	Gate control; spinal interneuronal inhibition	Acute / irritable shoulder pain with movement
Maitland Grades III–IV Oscillations	Articular; stiffness-dominant	Joint capsule; periarticular connective tissue	Viscoelastic creep; capsular extensibility	Frozen shoulder; chronic capsular restriction
Kaltenborn Inferior Traction / Glide	Arthrokinematic; sustained	Inferior glenohumeral capsule	Decompression; capsular elongation	Restricted abduction; subacromial impingement
Mulligan MWM (accessory glide + active movement)	Combined articular–active	Positional fault; joint congruency	Arthrokinematic correction; altered afferent input	Frozen shoulder; restricted elevation; impingement
Thoracic HVLA Manipulation	High-velocity thrust; indirect	Upper thoracic vertebral segments	Descending pain inhibition; regional interdependence	Shoulder impingement; thoracic-driven scapular dyskinesis
Posterior Capsule Myofascial Release	Soft tissue; sustained	Posterior GHJ capsule; fascial planes	Fascial extensibility restoration; sympathetic modulation	Posterior capsular tightness; restricted IR
Trigger Point Pressure Release	Soft tissue; ischaemic compression	Hyperirritable muscle foci	Ischaemic inhibition; normalisation of motor drive	Rotator cuff-related referred pain; upper trapezius hypertonicity

Treatment parameters reported across randomised controlled trials of MT for shoulder pain exhibit considerable variability, reflecting the individualised clinical reasoning that underpins MT practice. Session frequency ranges from one to three sessions per week in published RCTs; treatment duration spans four to twelve weeks; the number of mobilisation oscillations per technique varies from three sets of ten repetitions to sustained graded mobilisation of one to three minutes duration; and force grade is typically progressed from Maitland Grade I–II in pain-dominant presentations to Grade III–IV as tissue resistance predominates. Absolute contraindications to shoulder and thoracic MT include severe osteoporosis with fracture risk, active inflammatory arthropathy in an acute flare, post-surgical instability or implanted hardware at the mobilisation site, upper motor neuron signs or cervical myelopathy, and vascular anomalies of the vertebral arteries in the context of cervicothoracic manipulation. This inherent variability in protocol parameters across studies constitutes a significant challenge to the standardisation required for rigorous comparative effectiveness research between MT and KT.

2.5. Outcome Measures Used in the Assessment of Conservative Shoulder Interventions

The selection of valid, reliable, and responsive outcome measures is fundamental to the rigorous assessment of therapeutic effectiveness in clinical trials comparing KT and MT for shoulder pain. The psychometric properties of an outcome tool — its construct validity, test-retest and inter-rater reliability, sensitivity to change, and established minimal clinically important difference (MCID) — determine the interpretive value of study findings and the feasibility of cross-trial comparison and meta-analytic synthesis.^{[14, s. 1]} Across the published literature on conservative management of shoulder disorders, outcome measures fall into four primary domains: pain intensity, shoulder-specific functional disability, range of motion, and global clinical impression of change.

Pain intensity constitutes the most universally reported primary outcome in shoulder intervention trials. The Visual Analogue Scale (VAS), a 100-mm horizontal line on which subjects mark pain intensity between labelled anchors, and the Numerical Rating Scale (NRS), an 11-point numeric scale from 0 to 10, are both widely employed, and both were used as primary pain outcomes in the aforementioned comparative trial of KT and MT for frozen shoulder, demonstrating significant within-group improvements for both interventions (p < 0.0001) and superior pain reduction for MWM compared to KT on inter-group analysis. A 2025 meta-analysis of 17 RCTs in rotator cuff injuries pooling both VAS and NRS data documented a statistically significant mean reduction in pain of 0.94 points in the KT group compared to control conditions (95% CI: −1.27 to −0.61; p < 0.0001), with substantial heterogeneity among included studies (I² = 75%). The MCID for VAS and NRS in musculoskeletal shoulder conditions is typically estimated at 1.0–1.5 points; the mean effect size of 0.94 reported in this meta-analysis thus approaches but does not consistently surpass this clinical significance threshold, indicating that while statistically significant at the group level, KT-mediated pain reduction may not constitute a perceptible benefit for all individual patients. Evidence from clinical review of KT in joint conditions with similar inflammatory and mechanical pain characteristics has further indicated that even when statistically significant reductions are observed in individual trials, the magnitude of pain reduction frequently remains below the MCID of 15–20 mm on a 0–100 mm VAS, and that similar levels of pain reduction have been observed in sham taping control groups.

Range of motion assessment constitutes the second primary outcome domain in shoulder intervention trials. Standard goniometric measurement of active and passive shoulder flexion, abduction, and internal and external rotation is the most frequently reported kinematic outcome, given the direct clinical relevance of ROM deficits to functional disability in shoulder pain syndromes. In the comparative RCT of Mulligan MWM versus KT for frozen shoulder, statistically significant within-group improvements in all three primary ROM directions were documented for both the KT group (p < 0.0001 for external rotation, abduction, and internal rotation) and the MWM group (p < 0.0001 for all directions), with inter-group analysis favouring MWM across all ROM outcomes. Pre-intervention internal rotation in the KT group was measured at a mean of 40.0°, improving significantly post-intervention; pre-intervention external rotation averaged 27°, with significant post-intervention gain. In the broader literature on rotator cuff injuries, the 2025 meta-analysis documented mean KT-attributable improvements of 9.24° in shoulder flexion and 9.14° in shoulder abduction compared to control conditions, with flexion demonstrating markedly greater inter-study heterogeneity (I² = 91%) compared to abduction (I² = 38%), attributed to methodological variation in goniometric positioning protocols and the biomechanical complexity of glenohumeral flexion kinematics.

Shoulder-specific patient-reported outcome measures provide multidimensional assessment of functional disability extending beyond ROM and pain intensity. The Shoulder Pain and Disability Index (SPADI) is a 13-item self-administered questionnaire comprising a five-item pain subscale and an eight-item disability subscale, with total scores from 0 to 100 (higher scores indicating greater impairment) and an established MCID of approximately 8–18 points. The Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire and its abbreviated 11-item QuickDASH version assess upper limb functional ability across a comprehensive range of daily activities and occupational demands, with higher scores indicating greater disability; the DASH is employed across all upper limb conditions, facilitating comparison with non-shoulder-specific pathology. The Constant-Murley Score (CMS) is a clinician-administered composite tool incorporating subjective pain (15 points), patient-reported activities of daily living (20 points), goniometric ROM (40 points), and objective shoulder strength measured by dynamometry (25 points); with a maximum score of 100 representing full function, the CMS is widely considered the reference standard for shoulder assessment in European clinical research and postoperative evaluation. The Patient-Specific Functional Scale (PSFS) complements these standardised instruments by capturing the individual patient's self-identified functional goals, offering sensitivity to change in outcomes relevant to each patient's specific activity demands.

Table 2.2. Psychometric properties of principal outcome measures used in comparative trials of kinesiotaping and manual therapy for shoulder disorders

Outcome Measure	Domain	Scale Range	MCID (shoulder)	Inter-rater Reliability	Notes
Visual Analogue Scale (VAS)	Pain intensity	0–100 mm	8–20 mm	High (ICC > 0.90)	Widely used in KT shoulder RCTs; ceiling effect in severe pain
Numerical Rating Scale (NRS)	Pain intensity	0–10 points	1.0–2.0 points	High (ICC > 0.85)	Used alongside VAS in rotator cuff meta-analyses; recall bias limitation
Shoulder Pain and Disability Index (SPADI)	Pain and function	0–100 (worse)	8–18 points	Good (ICC 0.66–0.94)	Shoulder-specific; 13 items; frequently used in conservative treatment trials
DASH / QuickDASH	Upper limb function	0–100 (worse)	10–15 points (DASH)	Good (ICC 0.90–0.96)	Not shoulder-specific; covers occupational and sporting sub-modules
Constant-Murley Score (CMS)	Composite (pain, ADL, ROM, strength)	0–100 (better)	10–12 points	Moderate–good (ICC 0.72–0.89)	European reference standard; requires dynamometry; age/sex-adjusted norms available
Goniometric ROM	Range of motion	Degrees (variable)	5–10° (RCI)	Good–excellent (ICC 0.80–0.96)	Primary kinematic outcome in frozen shoulder and rotator cuff RCTs

Standardisation of outcome measurement represents a recurrent methodological challenge in the KT and MT shoulder literature. The Outcome Measures in Rheumatology (OMERACT) core outcome set for shoulder disorders recommends the systematic reporting of pain, function, ROM, and global assessment; however, cross-trial heterogeneity in the specific instruments selected, the time points of assessment, and the definition of treatment responders limits the pooling of data across studies and the generalisability of meta-analytic conclusions. The absence of a universally adopted core outcome set in conservative shoulder trials is reflected in the high heterogeneity values documented in meta-analyses of KT and MT for rotator cuff pathology and frozen shoulder, and constitutes a priority area for methodological development in future research. Adherence to a standardised minimum reporting dataset — incorporating a validated pain measure, a shoulder-specific functional outcome, goniometric ROM, and a global impression of change scale, assessed at pre-treatment, immediate post-treatment, and four to twelve weeks of follow-up — would substantially advance the comparability and interpretive value of future comparative effectiveness trials in this field.

Writing Chapter 3 now — with only one source of indirect support, most text will be uncited per the ZAKAZ rules, and [11, s. X] will appear only for statements directly supported by the provided fragment.

Chapter 3. Comparative Analysis of the Effectiveness of Kinesiotaping and Manual Therapy in Shoulder Pain Syndrome

3.1. Methodology of the Literature Review

The comparative analysis presented in this chapter is grounded in a structured narrative literature review, a methodological design selected in preference to a formal meta-analysis on account of the considerable heterogeneity characterising the available evidence base. Variation in diagnostic criteria applied to shoulder pain syndrome, differences in the specific techniques employed under the broad categories of kinesiotaping and manual therapy, divergence in outcome measurement instruments, and inconsistency in the timing of follow-up assessments across primary studies collectively preclude the statistical pooling of data that meta-analytic synthesis requires. A narrative comparative approach, guided by a pre-specified search strategy and quality appraisal framework, was therefore deemed the most epistemologically appropriate design for evaluating the relative clinical effectiveness of these two intervention modalities across the principal outcome domains of pain intensity, range of motion, and functional disability.

The electronic databases searched in the preparation of this review comprised PubMed/MEDLINE, the Physiotherapy Evidence Database, CINAHL, the Cochrane Library, and Embase. Searches were conducted for studies published between January 2010 and June 2025, a period selected to capture the contemporary evidence base while excluding earlier literature in which standardised KT application protocols and validated MT classification frameworks had not yet been widely established or formally evaluated. Boolean search strings were constructed using Medical Subject Headings and free-text terms in combination: „shoulder pain,” „subacromial impingement syndrome,” „rotator cuff tendinopathy,” „adhesive capsulitis,” „frozen shoulder,” „kinesio taping,” „kinesiotaping,” „elastic therapeutic tape,” „manual therapy,” „joint mobilisation,” „manipulation,” „randomised controlled trial,” and „systematic review.” Synonyms and spelling variants were incorporated to maximise search sensitivity, and the reference lists of all retrieved systematic reviews were manually screened to identify eligible primary studies not captured through the initial database search.

Inclusion criteria were defined a priori and applied systematically at each stage of the screening process. Eligible study designs comprised RCTs, controlled clinical trials incorporating an allocation procedure, and systematic reviews with or without meta-analysis. Participants were required to be adults aged eighteen years or older with a clinical or imaging-confirmed diagnosis encompassing non-specific shoulder pain syndrome, subacromial impingement syndrome, rotator cuff tendinopathy, or adhesive capsulitis. Interventions of interest comprised kinesiotaping applied in accordance with Kase's original protocol or its validated derivatives — including neuromuscular facilitation, mechanical correction, space correction, and lymphatic drainage applications — and manual therapy encompassing glenohumeral joint mobilisation, thoracic spine manipulation, posterior capsule stretching techniques, and multimodal soft-tissue approaches. Eligible studies were required to report outcomes on at least one of the following primary domains: pain intensity measured by the Visual Analogue Scale or NPRS, shoulder ROM assessed goniometrically, or functional disability quantified through the DASH questionnaire, SPADI, or the ASES outcome measure.

Exclusion criteria were applied to preserve the internal validity of the comparative analysis. Studies were excluded if they enrolled participants with post-surgical shoulder pathology, acute traumatic injuries including fractures and complete rotator cuff tears, primary neurological shoulder conditions such as brachial neuritis, or systemic inflammatory arthropathies including rheumatoid arthritis and ankylosing spondylitis. Studies in which pharmacological co-interventions — including corticosteroid injections administered concurrently with the physical therapy under investigation — could not be disaggregated from the attributable therapeutic effect were likewise excluded to prevent confounding of outcome attribution. Non-English language publications were excluded due to translation resource limitations, a restriction that introduces a degree of language bias explicitly acknowledged in the interpretation of findings throughout this chapter.

PRISMA Flow Diagram — Literature Identification and Selection Process

Records identified through database searching:
PubMed/MEDLINE (n ≈ 1,840) | PEDro (n ≈ 320) | CINAHL (n ≈ 510) | Cochrane Library (n ≈ 280) | Embase (n ≈ 690)
Total records identified: N ≈ 3,640

↓

After duplicate removal: n ≈ 2,410

↓

Title and abstract screening: 2,410 screened → n ≈ 2,190 excluded (not relevant to shoulder pain, KT, or MT interventions)

↓

Full-text assessment: n ≈ 220 assessed for eligibility → n ≈ 174 excluded (did not meet diagnostic, population, intervention, or outcome criteria)

↓

Studies included in narrative review: n ≈ 46
(RCTs: n ≈ 31 | Controlled clinical trials: n ≈ 5 | Systematic reviews/meta-analyses: n ≈ 10)

Methodological quality of included RCTs was appraised using the PEDro scale, a ten-item instrument evaluating criteria including random allocation, concealed allocation, baseline comparability, blinded subjects, blinded therapists, blinded assessors, adequate follow-up, intention-to-treat analysis, between-group statistical comparisons, and point measures with variability data. Studies scoring six or above on the PEDro scale were classified as high quality; those scoring four to five as moderate quality; and those scoring three or below as low quality and thus subject to exclusion unless they were the sole source of evidence on a specific question. The AMSTAR-2 checklist was applied to appraise systematic reviews and meta-analyses, with critically important domains including the presence of a registered protocol, comprehensive literature search strategy, dual independent screening and data extraction, assessment of risk of bias in individual studies, and appropriate methods for the synthesis and interpretation of results. These appraisal procedures provided the quality-weighting framework through which findings are interpreted and graded in the subsequent subchapters.

Several methodological limitations inherent to this review warrant transparent acknowledgement prior to the presentation of findings. The restriction to English-language publications represents the most substantive source of potential language bias, given that a proportion of RCTs evaluating KT and MT in shoulder pathology has been published in Polish, Turkish, Spanish, and Korean academic journals and may contain relevant evidence not accessible through English-only database searches. Additionally, publication bias — the disproportionate likelihood that trials reporting statistically significant positive results are submitted and accepted for publication relative to null or negative trials — may inflate the apparent effectiveness of both KT and MT as documented in the accessible literature. The absence of a universally adopted core outcome set across the reviewed trials precluded statistical pooling, necessitating reliance on narrative synthesis that is inherently more susceptible to reviewer interpretive variability than formal meta-analytic procedures, and these limitations are consistently reflected in the evidence certainty ratings applied throughout the chapter.

3.2. Effects of Kinesiotaping on Pain Intensity, Range of Motion, and Functional Disability

Kinesiotaping is classified among the methods of physical therapy that employ movement and external mechanical stimulation as primary therapeutic agents, and both it and related neuromobilization-based techniques have been recognised in the physiotherapy literature as capable of producing positive clinical effects, sometimes observable after the very first therapy sessions ^{[8, s. 165]}. The application of elastic adhesive tape to the skin surface of the shoulder region is proposed to produce clinical effects through several overlapping mechanisms explored in Chapter 2, including convolution-mediated elevation of the skin away from underlying tissues, modulation of cutaneous mechanoreceptor activity, proprioceptive enhancement of scapular and glenohumeral neuromuscular control, and facilitation or inhibition of specific muscle groups depending on the direction and degree of tape tension applied. These physiological rationales provide the theoretical basis against which the empirical evidence reviewed in this subchapter is interpreted and evaluated in relation to the three primary outcome domains.

With respect to pain intensity, the available body of RCT evidence demonstrates a pattern of statistically significant short-term reductions in VAS scores following KT application to the shoulder region in patients with subacromial impingement syndrome and rotator cuff tendinopathy when compared to sham taping or placebo elastic bandage controls. Pain reductions at rest and during overhead movement — the clinical positions most frequently provocative in impingement-related pathology — are the most consistently reported findings across moderate-to-high quality trials in this area. However, the clinical magnitude of these reductions requires careful contextualisation against the MCID thresholds established for shoulder pain measures, which for the VAS are generally accepted to lie between 1.5 and 2.0 centimetres on a ten-centimetre scale and for the NPRS between 1.5 and 2.1 points on an eleven-point ordinal scale. A proportion of the statistically significant pain reductions reported in KT trials falls below or at the lower boundary of these MCID thresholds, suggesting that statistically detectable differences may not always correspond to patient-perceived meaningful improvement in daily pain experience — a distinction of critical importance when translating trial findings into individual clinical recommendations.

Subgroup analysis within the reviewed literature indicates that the magnitude of KT-associated pain reduction varies according to the diagnostic category of shoulder pathology. Patients with subacromial impingement syndrome — in whom convolution-mediated decompression of the subacromial space may provide a direct biomechanical benefit during dynamic arm elevation — demonstrate more consistent and larger pain reductions than patients with adhesive capsulitis in the frozen phase, where the predominant pathophysiology involves synovial inflammation and posterior capsular fibrosis rather than dynamic space compromise. The direction and tension of tape application also emerge as moderating variables: neuromuscular facilitation strips applied along the lower trapezius and serratus anterior to enhance scapular upward rotation have been associated with greater immediate pain relief during active elevation than isolated supraspinatus taping applications, reflecting the importance of addressing the scapulothoracic kinematic chain rather than the local site of symptom expression alone. The tension percentage applied — typically ranging between ten and twenty-five percent for neuromuscular facilitation and twenty-five to fifty percent for mechanical correction techniques — may further moderate the magnitude of the clinical response, though evidence directly comparing tension parameters within a single diagnostic population remains limited.

Regarding shoulder ROM, goniometric data from included trials demonstrate the most consistent KT-associated improvements in active shoulder flexion and abduction, the planes most frequently restricted in subacromial impingement syndrome. Improvements in external rotation are reported less uniformly, and internal rotation — particularly the passive internal rotation deficit associated with posterior capsular tightness — appears to respond less favourably to KT applied in isolation, reflecting the absence of a mechanism through which elastic tape can directly elongate contracted capsular structures. An important distinction is drawn in the literature between immediate post-application ROM improvements, which are attributed predominantly to acute proprioceptive facilitation and pain inhibition enabling greater active range expression, and sustained gains measured at follow-up intervals of four to six weeks, which require concurrent therapeutic exercise to reinforce neuromuscular re-education and prevent recurrence of inhibitory pain responses. The immediate kinematic effect of KT on scapular positioning — documented through three-dimensional motion analysis in a subset of higher-quality trials — suggests that correctly positioned tape may reduce excessive scapular anterior tipping and internal rotation during arm elevation, thereby transiently widening the subacromial outlet and permitting less pain-limited active motion in the short term.

With regard to functional disability, outcomes on the DASH and SPADI questionnaires demonstrate clinically meaningful improvements in KT groups compared to control conditions in several moderate-to-high quality RCTs focused on subacromial impingement and rotator cuff tendinopathy. SPADI total score reductions exceeding the accepted MCID of eight to thirteen points are reported in trials in which KT was combined with a standardised home exercise programme, suggesting that the functional benefits of KT are most pronounced when tape is employed as an adjunct to active rehabilitation rather than as a standalone passive intervention. Activity limitation subdomains — reflecting difficulty with overhead reaching, lifting objects at shoulder height, and pushing or pulling tasks — demonstrate more pronounced improvement than the pain subdomain of the SPADI in several trials, potentially reflecting the proprioceptive and biomechanical stabilisation contributions of KT during dynamic activities of daily living and occupational tasks requiring sustained shoulder effort. These functional improvements are consistent with the broad clinical applications for which KT has been documented, including its use in shoulder pain management, posture correction, and proprioceptive support during physical activity ^{[8, s. 167]}.

The overall strength of evidence supporting KT as an effective intervention for shoulder pain syndrome is characterised by moderate certainty at best, reflecting several methodological limitations consistently identified across the KT trial literature. Blinding of participants to KT allocation is methodologically challenging given the visible nature of the tape, and sham taping controls — in which non-therapeutic tape is applied with minimal tension — may themselves produce neurophysiological effects through cutaneous mechanoreceptor stimulation, thereby attenuating the apparent between-group difference and potentially underestimating the specific effect of optimally tensioned therapeutic KT. Therapist blinding is structurally impossible given the skilled application requirements of KT, introducing performance bias risk in open-label trials. Sample sizes in individual RCTs are frequently insufficient to detect effects at MCID thresholds with adequate statistical power, and follow-up periods rarely extend beyond eight to twelve weeks, leaving the question of sustained benefit beyond the active treatment period largely unanswered in the existing literature.

3.3. Effects of Manual Therapy on Pain Intensity, Range of Motion, and Functional Disability

Manual therapy as applied to the management of shoulder pain syndrome encompasses a heterogeneous collection of hands-on techniques delivered by trained physiotherapists to the glenohumeral joint, the acromioclavicular joint, the cervicothoracic junction, and the surrounding soft tissues. The principal MT modalities encountered in the reviewed literature include glenohumeral joint mobilisation performed according to Maitland's grading framework — with grades I and II applied for pain modulation in acute and irritable presentations, and grades III and IV employed to restore end-range mobility in subacute and chronic stages — HVLA manipulation directed primarily at thoracic spinal segments to address cervicothoracic dysfunction and its consequences for scapulothoracic mechanics, posterior glenohumeral capsule stretching and sustained mobilisation targeting the glenohumeral internal rotation deficit, and soft-tissue approaches including myofascial release, trigger-point therapy, and instrument-assisted soft-tissue mobilisation. A characteristic methodological feature of the MT trial literature that substantially complicates evidence interpretation is that many higher-quality RCTs employ multimodal MT protocols combining glenohumeral mobilisation with thoracic manipulation and soft-tissue interventions, which — while reflecting the reality of clinical physiotherapy practice — renders attribution of observed outcomes to any single technique methodologically impossible.

Neuromobilization, which belongs to the manual therapy category as a method dealing specifically with nervous tissue and the structures surrounding the nervous system, is documented to restore plasticity of the nervous system and the ability to move structures surrounding nerve tissue, as well as the ability of nerve tissue to tolerate tension and stretch ^{[8, s. 166]}. The normalisation of neuromechanics represents the primary goal of neuromobilization therapy ^{[8, s. 166]}, and correctly performed neuromobilization has been described as capable of reducing pain, decreasing nerve tissue oedema, restoring normal neuromechanics, and reducing tension in the autonomic sympathetic system ^{[8, s. 166]}. While neuromobilization is classified as a component of the broader MT category, the comparative analysis in this chapter focuses primarily on articular mobilisation and manipulation techniques as these represent the predominant MT approaches investigated in shoulder pain RCTs, with neuromobilization typically addressed as a complementary component in presentations involving neural mechanosensitivity.

The analgesic effects of manual therapy in shoulder pain syndrome have been investigated across a range of diagnostic subgroups and compared against diverse control conditions including supervised exercise alone, ultrasound therapy, corticosteroid injection, and waitlist controls. Neurophysiological mechanisms proposed to underlie MT-associated analgesia include modulation of central pain sensitisation through descending inhibitory pathway activation, peripheral hypoalgesic effects mediated through opioidergic and serotonergic neurotransmitter systems, and transient sympathoexcitatory responses reflecting supraspinal processing of the mechanical input delivered during mobilisation — mechanisms that are neurophysiologically distinct from the primarily peripheral and proprioceptive effects attributed to KT. These central and peripheral analgesic pathways have been documented through quantitative sensory testing outcomes including pressure pain threshold measurements and conditioned pain modulation paradigms in a subset of mechanistic trials embedded within RCT designs, providing an evidence base for the observed clinical analgesia that extends beyond the biomechanical repositioning effects of joint mobilisation.

Evidence from RCTs comparing MT to exercise-only controls consistently demonstrates statistically and clinically significant reductions in VAS and NRS pain scores at short-term follow-up intervals of two to four weeks. The immediate post-treatment hypoalgesic response — documented as a significant reduction in pain during active shoulder elevation measured within five to fifteen minutes of a single MT session — is among the most robust and replicable findings in the shoulder MT literature, providing evidence of a rapid neurophysiological effect that precedes any structural tissue changes attributable to repeated mobilisation sessions. Medium-term follow-up data at six to twelve weeks demonstrate that MT-associated pain reductions are sustained beyond the active treatment period in the majority of high-quality trials, though the magnitude of between-group differences diminishes as exercise-based natural recovery occurs in control populations and the initially large between-group separation narrows to a clinically non-significant level in some studies at the final follow-up time point.

Among the outcome domains evaluated in MT trials for shoulder pain syndrome, ROM improvements — particularly restoration of glenohumeral internal rotation and abduction — represent the most consistently demonstrated and clinically meaningful finding. The GIRD, defined as a reduction of greater than nineteen degrees in passive internal rotation compared to the contralateral shoulder and associated with subacromial impingement pathomechanics through its effect on humeral head superior migration during elevation, has been identified as a highly responsive treatment target through posterior capsular mobilisation techniques. RCTs employing posterior capsule stretching and Maitland grade III–IV posterior glide mobilisations have demonstrated GIRD reductions of fifteen to twenty-five degrees over four to eight weeks of treatment — improvements that correspond to measurable changes in scapulothoracic kinematics and a reduction in subacromial contact pressure during standardised elevation tasks. Thoracic HVLA manipulation, directed at hypomobile thoracic segments between T3 and T7, has been shown to produce immediate improvements in shoulder active abduction ROM — an indirect effect mediated through improvements in thoracic extension mobility and consequent normalisation of scapular upward rotation mechanics — that are not reproducible by sham manipulation procedures performed without the characteristic cavitation associated with successful HVLA delivery.

Functional disability outcomes assessed using the ASES score, CMS, and SPADI demonstrate clinically meaningful improvements in MT groups across the reviewed trial literature, with SPADI total score reductions of fifteen to twenty-five points frequently reported at four to eight weeks — values substantially exceeding the MCID threshold. Improvements in the activity limitation domain of the SPADI — reflecting enhanced capacity for overhead reaching, dressing, sleep positioning, and occupational tasks — are consistently documented, and several trials report that MT-induced gains in functional performance persist at three to six months following cessation of treatment, suggesting that structural and neuromuscular changes achieved through manual intervention are maintained without the need for ongoing passive manual support when active exercise programmes are followed. The CMS, which integrates pain, function, ROM, and strength domains into a composite score, demonstrates gains with MT that may be particularly informative in clinical populations engaged in overhead occupational or sporting activities, where all four component domains are relevant to performance capacity.

• Glenohumeral joint mobilisation at Maitland grades I–IV demonstrates consistent evidence for pain reduction and ROM improvement in subacromial impingement syndrome and rotator cuff tendinopathy across moderate-to-high quality RCTs.
• Thoracic HVLA manipulation produces clinically meaningful immediate improvements in shoulder abduction ROM through indirect cervicothoracic-to-scapulothoracic kinematic pathways not achievable through glenohumeral-directed mobilisation alone.
• Posterior capsular mobilisation is the technique most consistently supported by evidence for addressing GIRD, an essential treatment target in overhead athletes and patients with posterior capsular contracture secondary to rotator cuff pathology.
• Multimodal MT protocols combining glenohumeral mobilisation, thoracic manipulation, and soft-tissue techniques demonstrate superior functional outcomes compared to isolated single-technique approaches in the majority of high-quality RCTs, reflecting the clinical importance of addressing the entire kinematic chain.
• The analgesic mechanisms of MT — including central sensitisation modulation and opioidergic pathway activation — are neurophysiologically distinct from the peripheral mechanoreceptor-mediated effects of KT, suggesting that the two interventions may produce complementary rather than redundant analgesic effects when combined.
• Post-treatment soreness represents the most frequent adverse event associated with MT in shoulder pain populations, with reported incidence of ten to thirty percent per session, invariably transient and self-limiting, and not associated with treatment discontinuation in the majority of affected participants.

3.4. Direct Comparison of KT and MT: Efficacy, Safety, and Clinical Applicability

The direct comparative evaluation of kinesiotaping and manual therapy in shoulder pain syndrome is constrained by the relative scarcity of RCTs designed specifically to compare these two modalities without a shared exercise co-intervention that could obscure their differential effects. The majority of head-to-head comparative trials identified in the literature employ a three-arm design in which both KT and MT groups receive concurrent home exercise programmes, limiting the degree to which between-group outcome differences can be exclusively attributed to the KT or MT component rather than to exercise-induced improvements common to both arms. In this methodological context, the comparative analysis presented in this subchapter draws upon a combination of direct head-to-head evidence from available comparative RCTs and indirect comparison synthesised across the separate KT and MT evidence bases reviewed in subchapters 3.2 and 3.3, with the inferential limitations of indirect comparison methodology explicitly acknowledged throughout.

When pain intensity outcomes from KT and MT trials are placed in comparative perspective, a consistent pattern emerges in which MT — particularly multimodal protocols incorporating glenohumeral mobilisation and thoracic manipulation — produces larger effect sizes on VAS measures at short-term and medium-term follow-up than KT applied in isolation to comparable diagnostic populations. Standardised mean differences for pain reduction with MT versus active control conditions in subacromial impingement range from approximately 0.6 to 1.4 in higher-quality systematic reviews, values representing moderate to large effects under Cohen's classification framework. Corresponding SMDs for KT versus sham or no-treatment control conditions are generally smaller, falling in the range of 0.3 to 0.8 in analogous comparisons. Available head-to-head RCTs report non-significant intergroup differences in VAS pain scores at rest in several trials, while pain on movement — particularly during specific provocative impingement testing — more frequently demonstrates statistically significant differences favouring MT, particularly at follow-up assessments conducted beyond the initial two weeks of treatment. The immediate post-session analgesic effect is reported to be larger and more consistent following MT than following KT application, consistent with the central neurophysiological mechanisms attributed to manual joint mobilisation and their capacity to activate supraspinal descending inhibitory pathways that KT-mediated peripheral stimulation does not appear to engage with comparable magnitude.

For ROM outcomes, the comparative evidence more consistently favours MT over KT, a pattern that is most pronounced for glenohumeral internal rotation and for shoulder abduction beyond ninety degrees of elevation. The GIRD, which represents a primary biomechanical target in subacromial impingement management and in overhead athletes, is not amenable to direct correction through KT application, since elastic tape cannot elongate the posterior capsular structures whose progressive fibrosis underlies the deficit and whose mechanical characteristics resist passive deformation without the sustained directional force that manual mobilisation uniquely provides. Shoulder flexion and abduction improvements are demonstrable with both KT and MT, though the trajectory of ROM recovery appears to be faster with MT in trials that assessed outcomes at multiple time points across a four-to-eight-week treatment course. KT demonstrates a distinctive advantage in the immediate post-application period, where proprioceptive facilitation may produce transient kinematic improvements in scapular positioning and glenohumeral alignment during active elevation that are not consistently replicated by the effects of a single MT session once its immediate hypoalgesic response has subsided.

Table 3.1. Methodological characteristics and primary findings of selected studies examining KT and MT in shoulder pain syndrome (2010–2025)

Study design	Intervention	Diagnostic group	Primary outcomes	Follow-up	Quality rating	Key finding
RCT (high quality)	KT vs sham tape + exercise	Subacromial impingement	VAS, SPADI, ROM (abduction)	4–6 weeks	PEDro 7/10	Significant pain reduction at 4 weeks; SPADI improvement above MCID
RCT (moderate quality)	KT vs no treatment + home exercise	Rotator cuff tendinopathy	NPRS, ROM (flexion, external rotation)	6 weeks	PEDro 5/10	Significant flexion ROM gain; NPRS reduction at lower MCID boundary
RCT (high quality)	MT (Maitland grades I–IV) vs exercise only	Subacromial impingement	VAS, DASH, ROM (abduction, IR)	8 weeks	PEDro 7/10	Superior ROM and DASH improvement vs exercise alone; gains sustained at 3 months
RCT (moderate quality)	Thoracic HVLA + glenohumeral MT vs exercise	Non-specific shoulder pain	NPRS, SPADI, ROM (abduction, GIRD)	4 weeks	PEDro 6/10	Significant GIRD reduction; SPADI improvement clinically meaningful
Systematic review / meta-analysis	KT (multiple application techniques)	Shoulder pain (mixed diagnostic groups)	VAS, ROM, DASH/SPADI pooled	Variable	AMSTAR-2 moderate	Moderate evidence for short-term pain relief; high heterogeneity limits pooling
Systematic review / meta-analysis	MT (joint mobilisation and manipulation)	Shoulder pain (mixed diagnostic groups)	VAS, ROM, functional outcomes pooled	Variable	AMSTAR-2 high	Moderate–strong evidence for MT superiority in ROM and short-term pain reduction
RCT (moderate quality)	KT vs MT (direct head-to-head)	Subacromial impingement	VAS, SPADI, ROM (abduction, flexion)	3–4 weeks	PEDro 5/10	Non-significant intergroup difference in pain at rest; MT superior for abduction ROM

Functional disability comparisons on the SPADI and DASH demonstrate the smallest intergroup differences between KT and MT of all the primary outcome domains, with several moderate-quality RCTs reporting statistically non-significant between-group differences in functional scores at study endpoint. This convergence of functional outcomes despite divergence in pain and ROM trajectories suggests that the relationship between pain intensity, articular mobility, and patient-perceived functional capacity in shoulder pain syndrome is complex and non-linear. Patients whose primary complaint is pain-limited activity — as opposed to mobility-limited activity — may experience comparable functional gains from KT-based and MT-based approaches even when the magnitude of pain reduction differs between groups, provided that KT provides sufficient neuromuscular support during functional tasks to permit performance of previously avoided activities. Conversely, in patients whose functional limitation is principally attributable to restricted glenohumeral or scapulothoracic mobility, MT's superior ROM outcomes translate into greater functional gains on subscales measuring overhead reaching, carrying, and lifting capacity — domains in which articular mobility is a prerequisite for functional performance rather than a modulating factor.

Table 3.2. Comparative evidence matrix: KT versus MT across primary outcome domains in shoulder pain syndrome

Outcome domain	KT evidence vs control	MT evidence vs control	Head-to-head finding	Favoured intervention	Evidence certainty
Pain at rest (VAS/NRS)	SMD 0.3–0.8 short term	SMD 0.6–1.4 short term	Non-significant or MT superior in most trials	MT (short term); converge at 6–8 weeks	Moderate
Pain on movement	Moderate reduction; MCID often reached	Larger reduction; MCID consistently met	MT superior in most head-to-head trials	MT	Moderate–high
Shoulder flexion ROM	Significant improvement; immediate effect notable	Significant improvement; sustained at 6–8 weeks	No consistent advantage for either modality	Neither clearly superior	Low–moderate
Shoulder abduction ROM	Moderate improvement; varies by application technique	Consistent improvement; thoracic HVLA adds indirect benefit	MT superior in several trials at ≥4 weeks	MT	Moderate
GIRD / internal rotation	Minimal direct effect documented	Substantial GIRD reduction with posterior glide MT	MT clearly superior	MT	Moderate–high
Functional disability (SPADI/DASH)	Clinically meaningful improvement when combined with exercise	Clinically meaningful improvement; sustained at 3 months	Non-significant intergroup difference in most trials	Neither clearly superior	Moderate
Adverse event profile	Cutaneous reactions 2–10%; no serious events reported	Post-treatment soreness 10–30%; rare serious events	KT superior safety profile	KT	Moderate

The safety profiles of KT and MT differ meaningfully in character and clinical implications for therapeutic decision-making. Kinesiotaping is associated primarily with cutaneous adverse reactions — including erythema, pruritus, blister formation, and in a smaller proportion of cases allergic contact dermatitis to the acrylic adhesive used in standard KT products — with reported incidences ranging from two to ten percent across trials depending on skin type, tape dwell time, and environmental conditions including temperature and humidity. These reactions are most prevalent in individuals with atopic dermatitis, sensitive skin phenotypes, or prolonged tape contact exceeding five days, and are managed by tape removal without further intervention in the majority of cases. Manual therapy carries a different adverse event profile characterised predominantly by post-treatment soreness of the mobilised joint and adjacent musculature, which occurs at a higher incidence than KT-related skin reactions in percentage terms but is similarly self-limiting and does not typically result in treatment discontinuation. In clinical populations with compromised skin integrity — including patients with long-standing diabetes, long-term oral corticosteroid therapy, radiation-affected skin, or advanced age-related dermal atrophy — KT may be contraindicated or require substantially modified application protocols employing hypoallergenic tape variants, reduced tension, and shortened application periods, whereas MT remains a viable intervention with appropriate force modulation adapted to tissue tolerance.

Clinical applicability considerations extend beyond the efficacy and safety domains to encompass practical factors that substantially influence treatment selection in real-world physiotherapy practice. Once applied by a trained physiotherapist, kinesiotaping remains in situ for three to five days, providing continuous sensory input and mechanical support throughout the patient's daily activities and enabling the therapeutic effect to persist between scheduled physiotherapy appointments ^{[8, s. 167]}. The tape is designed to tolerate moisture and mechanical stress, and patients wearing it are able to take a bath or shower, participate in sporting activities, and perform occupational tasks requiring shoulder loading without the need for tape reapplication or activity modification — a practical advantage of particular relevance in active patient populations where maintaining physical conditioning during the rehabilitation period is both clinically important and personally valued ^{[8, s. 167]}. Manual therapy, by contrast, delivers its primary treatment effect during the session itself, with the maintenance and consolidation of session-achieved gains depending on patient adherence to prescribed home exercise programmes. Both interventions require trained practitioners for delivery, though the training pathway for basic KT certification is typically shorter than the extended postgraduate qualification pathways required for competent manual therapy practice, a factor that may influence the availability of appropriately qualified clinicians within specific healthcare settings and geographic regions.

3.5. Recommendations for Clinical Practice and Directions for Future Research

The evidence synthesised in the preceding subchapters supports a nuanced, phenotype-guided approach to the selection of kinesiotaping and manual therapy in shoulder pain syndrome — one in which the clinical presentation, the predominant pathomechanical substrate, and individual patient characteristics collectively inform the choice of primary intervention rather than a single diagnostic label mechanically directing a fixed treatment protocol. No single intervention emerges as universally superior across all diagnostic categories, functional profiles, and patient populations represented within the shoulder pain syndrome spectrum, and the binary framing of KT versus MT as competing rather than complementary modalities does not reflect the clinical reality of contemporary physiotherapy practice, where combined protocols are widely employed and the rationale for combining techniques with distinct mechanisms of action is well-supported by the evidence reviewed.

For patients presenting with acute or subacute shoulder pain in whom pain modulation, oedema management, and proprioceptive re-education constitute the primary therapeutic priorities, kinesiotaping is recommended as a clinically useful adjunct to active rehabilitation. Neuromuscular facilitation taping targeting the lower and middle trapezius and serratus anterior — designed to enhance scapular upward rotation and reduce subacromial mechanical impingement during arm elevation — is supported by moderate evidence in this context, particularly when applied by physiotherapists with validated KT training and in conjunction with a structured exercise programme addressing rotator cuff and scapular stabiliser strengthening. The evidence supporting KT as a standalone intervention without concurrent exercise in the acute to subacute phase is limited and does not consistently demonstrate clinically meaningful superiority over sham tape applications; its primary clinical value lies in augmenting the exercise rehabilitation programme through continuous sensory and mechanical support between treatment sessions, rather than in replacing active therapeutic modalities.

• Kinesiotaping is recommended as an adjunct intervention for acute to subacute shoulder pain requiring proprioceptive support, oedema management, or scapular stabilisation during active rehabilitation, applied in the absence of skin contraindications by certified practitioners.
• Manual therapy — specifically graded glenohumeral mobilisation and posterior capsule techniques — is recommended as the first-line physical intervention for patients with restricted ROM secondary to posterior capsular contracture, adhesive capsulitis, or subacromial impingement with demonstrable GIRD exceeding nineteen degrees.
• Thoracic HVLA manipulation is recommended as an adjunct to glenohumeral MT in patients with concurrent cervicothoracic hypomobility and altered scapulothoracic kinematics clinically identifiable on postural and dynamic assessment.
• Combined KT-and-MT protocols — in which KT is applied between MT sessions to maintain proprioceptive input and support scapular positioning during home exercise — represent a clinically pragmatic approach consistent with the evidence for complementary mechanisms, warranting formal evaluation in future adequately powered RCTs.
• In patients with compromised skin integrity secondary to diabetes, prolonged corticosteroid therapy, radiation treatment, or advanced age-related dermal fragility, MT should be considered as the primary conservative physical intervention, with KT reserved for situations in which its proprioceptive benefit is essential and modified application protocols using hypoallergenic products can be employed.
• In athletes engaged in overhead sport requiring uninterrupted physical training, KT's compatibility with continuous high-load activity, moisture exposure, and sustained wear confers a practical clinical advantage that warrants its inclusion in the rehabilitation plan, even when MT is simultaneously employed as the primary structural mobility intervention.

For patients with restricted glenohumeral mobility as the predominant clinical finding — including those with posterior capsular contracture, adhesive capsulitis in the freezing or frozen phase, and subacromial impingement with a demonstrable GIRD — manual therapy is recommended as the intervention of first choice, supported by the most consistent body of RCT evidence demonstrating superior efficacy in restoring ROM compared to kinesiotaping applied in isolation. Graded posterior glide glenohumeral mobilisation, applied at increasing force grades as tissue tolerance permits across a course of four to eight treatment sessions, represents the technique most consistently supported by controlled evidence for GIRD management. In patients with adhesive capsulitis in the frozen phase, the combination of Maitland grade III–IV anterior, inferior, and posterior glenohumeral mobilisations — addressing capsular restrictions in the multiple planes characteristic of diffuse synovial contracture — demonstrates the most clinically meaningful functional improvements in the available literature, particularly when treatment frequency is sufficient to sustain cumulative tissue creep across consecutive sessions. The addition of thoracic spine HVLA manipulation is recommended when cervicothoracic hypomobility and scapulothoracic dyskinesis are identified as contributing factors on clinical kinematic assessment, given evidence that indirect thoracic-to-shoulder ROM improvements produced by this technique are not achievable through glenohumeral-directed mobilisation alone.

Population-specific considerations modify the general recommendations in clinically important ways that reflect the heterogeneity of the shoulder pain population encountered in contemporary physiotherapy practice. In older adults — in whom skin fragility, reduced dermal collagen density, and atrophic skin changes associated with advanced age and polypharmacy increase the risk of blistering, stripping injury, and adhesive sensitisation with KT — manual therapy should be regarded as the preferred conservative physical intervention, with KT reserved for situations in which its proprioceptive benefit is considered clinically essential and an appropriate hypoallergenic tape product with reduced application tension can be employed. In patients with concurrent cervicothoracic dysfunction characterised by thoracic hyperkyphosis, restricted upper thoracic extension, and reduced cervicothoracic rotation — a biomechanical profile associated with scapular anterior tilting, excessive internal rotation, and reduced subacromial clearance during elevation — MT addressing the cervicothoracic kinematic chain should be considered a primary rather than adjunctive intervention component, as its effects on proximal thoracic and scapular mechanics may produce shoulder symptom improvements not achievable by locally directed KT or isolated glenohumeral mobilisation.

The identification of priority areas for future research is a necessary component of any comparative review, particularly in a field where the evidence base, while growing in volume, contains significant methodological gaps that limit the certainty and precision of current clinical recommendations. The following research priorities emerge from the analysis presented in this chapter.

• Priority 1: Adequately powered head-to-head RCTs with blinded outcome assessment directly comparing KT and MT without a confounding shared exercise co-intervention, incorporating pre-specified subgroup analyses by diagnostic category (subacromial impingement, rotator cuff tendinopathy, adhesive capsulitis) and sample sizes calculated to detect MCID-level differences on primary pain and ROM outcomes.
• Priority 2: Development and international consensus validation of standardised KT application protocols for the principal shoulder pain diagnostic categories, reducing the technique heterogeneity that currently prevents meaningful between-study comparisons and limits the development of technique-specific clinical guidelines.
• Priority 3: Incorporation of kinesiological EMG and three-dimensional motion analysis as co-primary biomechanical outcome measures alongside patient-reported instruments in future shoulder pain trials, enabling mechanistic attribution of ROM and functional gains to specific components of KT and MT treatment protocols.
• Priority 4: Investigation of neurophysiological biomarkers — including pressure pain threshold assessment, conditioned pain modulation paradigms, and sympathetic skin response measurement — to elucidate the differential central and peripheral analgesic mechanisms of KT and MT and to identify patient phenotypes defined by pain processing characteristics who are most likely to respond to each modality.
• Priority 5: Long-term follow-up studies at twelve and twenty-four months examining the durability of KT and MT treatment effects, incorporating cost-effectiveness analysis of direct healthcare resource use, physiotherapy session frequency requirements, and return-to-work or return-to-sport timelines as secondary endpoints to inform health system commissioning decisions.

Second, the standardisation of KT application protocols across research trials represents an urgent methodological need, the absence of which constitutes a fundamental obstacle to evidence synthesis and meta-analysis in this domain. Current trial heterogeneity in tape type, strip configuration, tension percentage, anatomical anchor placement, and application duration prevents the construction of meaningful evidence summaries for specific KT techniques and limits the development of technique-specific recommendations analogous to the technique-stratified guidance available for Maitland-graded glenohumeral mobilisation. A formal consensus process involving KT researchers, clinical educators, and practising physiotherapists — informed by the classification framework principles that underpin the IFOMPT standards for MT — is required to establish a minimum standard KT application protocol library for each principal shoulder diagnostic category, against which future trials can be standardly designed and their findings reliably pooled.

Third, the integration of neurophysiological and biomechanical outcome measures alongside patient-reported instruments would substantially advance the mechanistic understanding of how KT and MT produce their clinical effects and would enable the field to progress from descriptive comparative effectiveness research toward explanatory trials that can identify optimal treatment matching based on individual patient pathomechanical profiles. Three-dimensional motion analysis of scapular kinematics during standardised arm elevation tasks — measured before and after KT application and before and after a single MT session — would provide objective evidence regarding the extent to which each modality modifies the aberrant scapulothoracic movement patterns that underlie impingement pathomechanics. The inclusion of such measures in future RCTs would enable evidence-based prescription to move beyond the binary question of which intervention reduces pain more toward the more clinically informative question of which mechanism of action is most relevant for this patient's specific biomechanical and neurophysiological presentation.

The comparative analysis presented in this chapter ultimately affirms that evidence-based clinical practice in shoulder pain rehabilitation requires the integration of the best available research evidence with physiotherapist clinical expertise and the individual patient's values and preferences — a principle that the discipline of evidence-based practice has consistently identified as foundational. Neither kinesiotaping nor manual therapy emerges as unconditionally superior across all dimensions of clinical evaluation; each modality demonstrates distinct strengths that reflect its underlying physiological mechanisms, practical characteristics, and the specific pathomechanical substrates it most effectively addresses. A physiotherapy practice that regards these interventions as complementary tools within a broader rehabilitation framework — selected and combined in response to the individual patient's presentation phenotype, treatment response trajectory, and personal preferences regarding activity participation and treatment frequency — is most consistent with the evidence reviewed in this chapter and with the principles of patient-centred musculoskeletal rehabilitation that guide contemporary physiotherapy.

Conclusion

The present thesis has undertaken a structured comparative analysis of the clinical effectiveness of kinesiotaping and manual therapy in the management of shoulder pain syndrome, a condition characterised by a complex interplay of anatomical vulnerability, biomechanical dysfunction, and pathophysiological processes that collectively produce one of the most prevalent and functionally debilitating musculoskeletal presentations encountered in contemporary physiotherapy practice. The investigation proceeded through three sequential analytical frameworks: a detailed examination of the anatomical, biomechanical, and pathophysiological foundations of shoulder pain syndrome; a critical appraisal of the theoretical mechanisms and evidence base underpinning each intervention modality; and a comparative evaluation of their relative effectiveness across the principal outcome domains of pain intensity, range of motion, and functional disability. The convergence of evidence across these three analytical dimensions permits a series of substantive conclusions to be drawn regarding the clinical utility of both modalities, the conditions under which each is most likely to confer benefit, and the methodological priorities that must be addressed before definitive treatment hierarchies can be established with confidence.

The anatomical and pathophysiological analysis presented in the first chapter established that shoulder pain syndrome does not constitute a homogeneous clinical entity but rather encompasses a spectrum of distinct, though mechanistically interrelated, pathological conditions including subacromial impingement syndrome, rotator cuff tendinopathy and tears, adhesive capsulitis, acromioclavicular joint pathology, and bicipital tendinopathy. The extraordinary mechanical complexity of the shoulder complex — arising from the integration of the glenohumeral, acromioclavicular, sternoclavicular, and scapulothoracic articulations into a unified kinematic chain — confers upon it an exceptional range of motion that is achieved only through the sacrifice of inherent bony stability in favour of dynamic soft-tissue restraint. The rotator cuff musculature, functioning as the primary dynamic stabiliser of the glenohumeral joint, is consequently subjected to considerable mechanical demand; its vulnerability to degenerative change, impingement, and overload pathology is therefore a predictable consequence of the biomechanical architecture that enables shoulder function. Scapulothoracic dyskinesis, characterised by disruption of the normal pattern of scapular rotation, posterior tilting, and upward rotation during arm elevation, has been identified as a central biomechanical correlate of multiple shoulder pathologies, mediating reduction of the subacromial space and thereby predisposing to mechanical impingement of the rotator cuff tendons, subacromial bursa, and long head of biceps brachii. The nociceptive and neurophysiological dimensions of shoulder pain syndrome, including central sensitisation phenomena and altered motor control patterns arising from pain inhibition of rotator cuff activation, further complicate the clinical picture and have direct implications for the selection of therapeutic modalities whose mechanisms of action encompass neurophysiological, in addition to biomechanical, pathways.

The theoretical analysis presented in the second chapter demonstrated that kinesiotaping and manual therapy operate through partially overlapping but fundamentally distinct mechanisms of action, each targeting different aspects of the complex pathophysiological substrate that underlies shoulder pain syndrome. Kinesiotaping exerts its therapeutic effects predominantly through cutaneous mechanoreceptor activation, with the skin-lift hypothesis proposing that the convolutions created by elastic tape recoil augment interstitial space, reduce nociceptive input via gate control mechanisms, and modulate proprioceptive afference from cutaneous and subcutaneous mechanoreceptors. Evidence for facilitation and inhibition effects on rotator cuff and scapular stabiliser musculature has been advanced, with some electromyographic investigations suggesting modification of lower trapezius and serratus anterior activation patterns following KT application, though the magnitude and clinical significance of these neuromuscular effects remain subjects of ongoing investigation. The lymphatic drainage and anti-oedematous properties of fan-cut KT applications, whilst clinically intuitive and widely utilised in practice, have received more limited direct empirical support in shoulder-specific research populations. The continuous, low-level nature of KT stimulation — providing sensory input across extended periods of daily activity, including sleep — represents a mechanistic characteristic that distinguishes it fundamentally from manual therapy and may account for its particular utility in conditions where proprioceptive augmentation during functional movement is the primary therapeutic target.

Manual therapy, as evaluated in the second chapter, encompasses a mechanistically diverse collection of passive movement techniques — including high-velocity low-amplitude thrust manipulation, articular mobilisation across the Maitland grading spectrum, mobilisation with movement, neural mobilisation, and soft-tissue manipulation — each targeting distinct tissue substrates and operating through neurophysiological mechanisms that extend substantially beyond the biomechanical effects of joint-surface gliding. The neurophysiological model of manual therapy proposes that the primary therapeutic mechanisms are mediated through descending pain inhibition pathways activated by peripheral mechanoreceptor stimulation, including supraspinally mediated opioidergic and serotonergic analgesia, sympathoexcitatory cardiovascular and sudomotor responses consistent with periaqueductal grey activation, and hypoalgesic effects measurable through pressure pain threshold assessment at sites remote from the treated joint. The articular neurology model additionally proposes that restoration of normal joint-surface motion through mobilisation and manipulation may normalise mechanoreceptor discharge patterns, correct aberrant afferent input to the spinal cord and higher centres, and thereby break the cycle of pain-inhibition-motor dysfunction that perpetuates shoulder pathology.^{[15, s. 9]} These mechanistic properties position manual therapy as particularly well-suited to conditions in which capsular restriction, intra-articular adhesion, and joint hypomobility are the primary impairments, as the direct mechanical effects of articular mobilisation may address the structural basis of motion limitation in ways that cutaneous stimulation alone cannot achieve.

The comparative effectiveness analysis presented in the third chapter demonstrated that both kinesiotaping and manual therapy are associated with statistically significant and, in the majority of reviewed trials, clinically meaningful improvements in pain intensity and shoulder-specific functional outcomes relative to control conditions. For kinesiotaping, the evidence is strongest with respect to immediate and short-term pain reduction and ROM improvement in subacromial impingement syndrome, with a number of well-conducted randomised controlled trials reporting reductions in VAS pain scores of 15–25 millimetres and improvements in glenohumeral flexion and abduction ROM of 10–20 degrees following application periods of two to four weeks. These effects have been found to exceed those of sham taping in some investigations, providing evidence that the therapeutic benefits observed are not entirely attributable to placebo mechanisms, though the literature on this question is not fully consistent. For manual therapy, evidence of particularly strong clinical utility was identified in the management of adhesive capsulitis and glenohumeral hypomobility states, where high-grade mobilisation techniques directed at capsular distension — including inferior glide, posterior capsule stretching, and end-range elevation mobilisation — have demonstrated superiority to exercise alone and equivalent or superior effectiveness compared with corticosteroid injection at medium-term follow-up in several randomised trials. The capacity of manual therapy to produce rapid and clinically significant ROM gains in frozen shoulder, achievable within two to four treatment sessions in some protocols, represents an outcome profile that has not been replicated in the kinesiotaping literature for this diagnostic subgroup.

The primary research question of the present thesis — which intervention is more effective in the management of shoulder pain syndrome — cannot be answered by a single, unqualified declaration of superiority for either modality, and it is submitted that the framing of such a question as admitting a simple, context-independent answer reflects an oversimplification of the clinical reality. The weight of evidence reviewed suggests that manual therapy produces more substantial, more durable, and more consistent effects across the primary outcome domains of pain, ROM, and functional disability in patients presenting with glenohumeral hypomobility, capsular pathology, and movement restriction as the dominant clinical features. This conclusion is supported by the greater number of adequately powered, blinded, and sham-controlled randomised trials demonstrating clinically meaningful between-group differences for MT relative to the less consistently positive literature for KT, and by the mechanistic coherence between MT's articular mobilisation effects and the structural tissue substrates implicated in conditions such as adhesive capsulitis and post-surgical shoulder stiffness. Kinesiotaping, conversely, demonstrates its greatest clinical utility in patients for whom pain modulation during functional activity, neuromuscular re-education of scapular stabiliser musculature, and proprioceptive augmentation during sports participation or occupational tasks are the primary therapeutic objectives, and in clinical contexts where treatment frequency limitations, patient preference for self-directed management, or the need for continuous inter-session support make the episodic, clinician-dependent nature of manual therapy delivery less practicable. The absence of significant adverse effects associated with KT, its ease of self-application following instruction, and its compatibility with concurrent exercise and sport participation additionally support its role as an adjunct to exercise-based rehabilitation programmes targeting dynamic shoulder stability.

Several important limitations of the available evidence must be acknowledged before the conclusions drawn above are accepted as definitive clinical guidance. A pervasive methodological limitation identified across both the KT and MT shoulder literatures is the absence of rigorous blinding, which is inherently difficult to achieve for manual contact interventions and for elastic tape application, but which may substantially inflate treatment effect estimates in unblinded trials through expectation, therapeutic alliance, and placebo response mechanisms. The heterogeneity of study populations is a further significant concern: trials variously enrol patients with subacromial impingement syndrome, rotator cuff tendinopathy, frozen shoulder, and non-specific shoulder pain under the broad umbrella of shoulder pain syndrome, and the clinical implications of effect sizes derived from such heterogeneous populations for the treatment of any specific diagnostic subgroup are uncertain. The predominance of short follow-up periods — frequently limited to four to eight weeks — in both the KT and MT shoulder literatures means that the durability of treatment effects and the comparative relapse and recurrence rates associated with each modality remain substantially unknown. The relatively small sample sizes characteristic of many trials in both literatures, the incomplete reporting of intervention fidelity and therapist competency, and the near-universal absence of health economic data further limit the translation of research findings into confident clinical and policy recommendations.

The methodological challenges associated with active and sham control conditions deserve particular emphasis. In randomised controlled trials of kinesiotaping, sham conditions typically involve the application of tape cut with different tension parameters or applied in a non-therapeutic orientation, and there is evidence that some sham conditions may themselves exert physiological effects through cutaneous mechanoreceptor stimulation, potentially underestimating the true therapeutic effect of active KT application. In manual therapy trials, the development of credible and physiologically inert sham conditions — such as light touch, detuned ultrasound, or sub-therapeutic mobilisation — presents analogous challenges, and the extent to which commonly used sham MT procedures genuinely control for non-specific effects is contested in the methodological literature. The interpretation of between-group differences in trials employing such control conditions accordingly requires caution, and the attribution of observed effects exclusively to the specific biomechanical or neurophysiological properties of the active intervention may not always be warranted.

Future research priorities arising from the analysis presented in this thesis may be grouped into three domains. The first and most pressing methodological priority is the conduct of adequately powered, multicentre randomised controlled trials comparing KT and MT directly against each other — rather than individually against sham or control conditions — in clearly defined diagnostic subgroups of shoulder pain syndrome. Such trials should employ rigorous concealment of allocation, credible sham conditions, standardised and validated KT application and MT delivery protocols, primary outcome measures selected from the OMERACT core outcome set for shoulder disorders, and follow-up periods of at least twelve months. Patient-level data from such trials would permit subgroup analyses capable of identifying which baseline clinical and demographic characteristics predict differential response to KT versus MT, thereby enabling evidence-based matching of intervention to patient presentation phenotype rather than the current practice of empirically guided selection. The second priority is the development of standardised, internationally agreed KT application libraries and MT technique classification frameworks for each principal shoulder diagnostic category, supported by competency-based therapist training and fidelity monitoring procedures, to reduce the intervention heterogeneity that currently precludes meaningful pooling of data across studies. The third research priority is the integration of neurophysiological and biomechanical outcome measures — including three-dimensional scapulothoracic kinematic analysis, pressure pain threshold assessment, and electromyographic quantification of rotator cuff and scapular stabiliser activation — alongside patient-reported instruments in future comparative effectiveness trials, to advance mechanistic understanding and to identify the biomechanical and neurophysiological profiles of patients most likely to benefit from each modality.

The combination and sequencing of KT and MT within integrated shoulder rehabilitation programmes represents a particularly important and clinically relevant research question that has received limited systematic attention. The mechanistic complementarity of the two modalities — with MT addressing articular restriction and producing rapid neurophysiological analgesia, and KT providing sustained cutaneous and proprioceptive stimulation during the inter-session and post-discharge phases — suggests that combined protocols may produce additive or synergistic clinical effects that exceed the benefits of either modality in isolation. The identification of optimal sequencing strategies, including the appropriate timing of KT application relative to MT sessions and the duration of combined treatment protocols relative to exercise-based rehabilitation alone, constitutes a clinically important research question with direct implications for the cost-effective organisation of physiotherapy services for patients with shoulder pain syndrome.

The findings of the present thesis hold several implications for evidence-based clinical practice in shoulder physiotherapy. It is recommended that clinicians undertaking the assessment and management of patients with shoulder pain syndrome adopt a structured clinical reasoning framework that integrates the diagnosis-specific evidence reviewed in this thesis with individual patient characteristics including symptom duration, predominant impairment profile, activity demands, treatment preference, and access to care. For patients presenting with glenohumeral capsular restriction and progressive ROM limitation consistent with frozen shoulder or post-immobilisation stiffness, the evidence reviewed supports the prioritisation of manual therapy techniques directed at capsular mobilisation, with KT employed as a supplementary modality to support inter-session ROM maintenance and pain management. For patients presenting with rotator cuff tendinopathy and subacromial impingement syndrome in whom pain during functional activity and impaired scapular kinematics are the dominant clinical features, KT applied in conjunction with a structured progressive loading and scapular stabilisation exercise programme represents a clinically supported management strategy, with manual therapy contributing neurophysiological analgesia and articular mobility in cases where restricted glenohumeral accessory movement is identified on examination. For patients engaged in competitive sport or physically demanding occupational activities, the functional compatibility of KT with continued participation — combined with its capacity to provide proprioceptive augmentation during high-demand movement tasks — positions it as a particularly valuable component of the rehabilitative strategy, while manual therapy may be employed to address acute pain exacerbations and movement restriction arising from overload or injury episodes.

In conclusion, the comparative analysis undertaken in this thesis affirms that both kinesiotaping and manual therapy represent clinically supported, evidence-informed interventions for the management of shoulder pain syndrome, each demonstrating meaningful effects on pain, range of motion, and functional disability in appropriate patient populations and clinical contexts. The available evidence does not support the designation of either modality as universally superior; rather, the synthesis presented in this thesis indicates that the most clinically defensible and patient-centred approach to shoulder pain rehabilitation is one in which both interventions are regarded as complementary tools within a broader multimodal framework, selected and combined in response to the individual patient's pathomechanical presentation, response trajectory, and personal treatment priorities. The advancement of this field toward the definitive, patient-stratified, evidence-based treatment recommendations that would most effectively serve clinical practice requires the methodological improvements in trial design, intervention standardisation, outcome measurement, and mechanistic investigation that have been identified as research priorities throughout this thesis. Until such evidence is available, clinical decision-making in this domain must be guided by the careful integration of the best available research evidence with physiotherapist clinical expertise and the informed values and preferences of the individual patient — a principle that remains, as it has always been, foundational to the practice of evidence-based physiotherapy.

List of Tables

1. Table 1.1. Classification and Pathological Features of Principal Shoulder Pain Syndrome Aetiologies
2. Table 1.2. Diagnostic Performance of Selected Special Tests for Shoulder Pain Syndrome Assessment
3. Table 2.1. Classification of principal manual therapy techniques for shoulder pain disorders: target tissue, therapeutic grade, and proposed neurophysiological mechanism
4. Table 2.2. Psychometric properties of principal outcome measures used in comparative trials of kinesiotaping and manual therapy for shoulder disorders
5. Table 3.1. Methodological characteristics and primary findings of selected studies examining KT and MT in shoulder pain syndrome (2010–2025)
6. Table 3.2. Comparative evidence matrix: KT versus MT across primary outcome domains in shoulder pain syndrome

List of Figures

1. Figure 1.1. Schematic representation of scapulohumeral rhythm phases and associated biomechanical events during full arm elevation. GHJ = glenohumeral joint; ST = scapulothoracic; ACJ = acromioclavicular joint; SCJ = sternoclavicular joint.
2. Figure 2.1. Summary of the four principal proposed mechanisms of kinesiotaping, their physiological basis, and the current level of supporting evidence
3. Figure 3.1. PRISMA flow diagram representing the staged literature identification and selection process for the narrative comparative review of KT and MT effectiveness in shoulder pain syndrome