Scapular dyskinesis

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BACKGROUND: In tennis athletes with scapular dyskinesis, the activation of the scapulothoracic muscles during serve is not known. Also, the mechanical properties (tone, elasticity, and stiffness) of the scapulothoracic muscles of the tennis athletes with scapular dyskinesis are likely to change. The study aimed to evaluate the activation of the scapulothoracic muscles while performing tennis serve and to determine the changes in the mechanical properties of the same muscles in young tennis athletes with scapular dyskinesis...

INTRODUCTION: Scapular motion abnormality in rotator cuff tears is a well-known symptom, but its significance is not clear. Some authors consider it as a cause of rotator cuff tear, others as a consequence of the disease. OBJECTIVE: The aim of our study was to assess the changes in scapular motion in medium size full-thickness rotator cuff tear of degenerative origin compared to a healthy control group. MATERIAL AND METHOD: 10 healthy (control group) and 9 subjects with a medium size (1-3 cm), complaining rotator cuff tear (study group) were included in our study, in whom we analyzed the movements of the shoulder girdle, including the scapula, during sagittal and scapular plane flexion using a VICON 3D motion capture system and U...

Snapping scapula syndrome (SSS) is a source of pain and discomfort in patients. It is not uncommon for patients who present with SSS to have some degree of scapular dysfunction, especially with the tightness of the pectoralis minor (PM) muscle. In this Technical Note, we demonstrate our preferred technique for arthroscopic scapulothoracic bursectomy and partial scapulectomy with concomitant pectoralis minor release for the treatment of symptomatic SSS and PM tightness. In the treatment of these patients, PM release is beneficial because arthroscopic scapulothoracic bursectomy or partial scapulectomy alone may result in residual scapular dyskinesis...

BACKGROUND: Spontaneous shoulder-girdle pain and scapular winging/dyskinesis can be caused by several neuromuscular disorders identifiable by electrodiagnostic studies (EDX). We describe a group of adolescent athletes with this clinical presentation but normal EDX, followed by later development of neurogenic thoracic outlet syndrome (NTOS). METHODS: We identified patients referred for evaluation of NTOS that had a history of chronic atraumatic shoulder-girdle pain, scapular winging/dyskinesis, and normal EDX...

The shoulder joint complex in the overhead athlete is organized to effectively transfer the proximally generated forces distally into the arm. The organization also protects the joints and anatomic structures against the repetitive high velocities, large ranges of motions, and compressive, shear, translational, and distraction loads in the overhead motion while placing the hand in the "launch window." Coupling of the movements of the scapula, clavicle, and humerus results in scapulohumeral rhythm (SHR). Effective SHR requires the clavicle and scapula-and, at times, the mechanically linked claviscapular segment-to move the arm into the task-specific position and motion and requires the humerus to move through the ranges of motion to achieve the specific task in the throwing motion...

BACKGROUND: Up to 67% of adults experience shoulder pain in their lifetime. Numerous factors are related to the etiology of shoulder pain, one of which is thought to be scapular dyskinesis (SD). Given the prevalence of SD among the asymptomatic population a concern is that the condition is being medicalized (clinical findings suggested to require treatment but is ultimately a normal finding). Therefore, the purpose of this systematic review was to investigate the prevalence of SD among both symptomatic and asymptomatic populations...

Introduction: Scapular dyskinesis is commonly associated with subacromial pain syndrome (SAPS). Addressing scapular dyskinesis is widely accepted as an important component of shoulder rehabilitation. Our previous randomized controlled trial showed that Yi Jin Bang (YJB) exercises could effectively manage SAPS, but scapular motions and muscle activity during YJB exercises remain unknown. This study examined scapular kinematics synchronously with scapular muscle activation during YJB exercises. Methods: Thirty healthy participants with no shoulder complaints were enrolled in this study...

INTRODUCTION: This study is aimed to evaluate pain, muscle strength, scapular muscular endurance and scapular kinesis in individuals with Nonspecific Chronic Neck Pain and to compare them with asymptomatic individuals. In addition, to investigate the effect of mechanical changes in the scapular region on neck pain. METHOD: 40 individuals who applied to Kırıkkale University Faculty of Medicine Hospital Physical Therapy and Rehabilitation Center and diagnosed with NSCNP and 40 asymptomatic individuals for the control group were included the study...

Scapular dyskinesis (SD) is a condition of loss of normal mobility or function of the scapula. SD is frequently observed in patients with other shoulder disorders, such as rotator cuff (RC) tears. This study evaluates the different presentations in clinical outcomes and range of motions (ROMs) in patients suffering from RC tears with and without SD. A total of 52 patients were enrolled, of which 32 patients with RC tears and SD (group A) and 20 patients with RC tears without SD (group B). Statistically significant differences between the groups in terms of clinical outcomes were identified...

BACKGROUND: The alteration of scapular kinematics can predispose patients to shoulder pathologies and dysfunction. Previous literature has associated various types of shoulder injuries with scapular dyskinesis, but there are limited studies regarding the effect that proximal humeral fractures (PHF) have on scapular dyskinesis. This study aims to determine the change in scapulohumeral rhythm following treatment of a proximal humerus fracture as well as differences in shoulder motion and functional outcomes among patients who presented with or without scapular dyskinesis...

PURPOSE: Shoulder disorders may occur for procedural reasons in patients fitted with a cardiac implantable electronic device (CIED). This study aimed to examine the effects of CIED implantation on shoulder functions and scapular dyskinesis. MATERIALS AND METHODS: Thirty patients fitted with a CIED formed the study group (SG), whilst 30 participants without a CIED formed the control group (CG). The range of motion (ROM), grip strength, lateral scapular slide test (static), scapular dyskinesis test (dynamic), American Shoulder and Elbow Surgeons (ASES) Shoulder Score, and the Short Form-36 Health Survey (Physical and Mental Component Summary [PCS and MCS]) were applied in the study...

Scapular dyskinesis, the impairment of optimal scapular position and motion, is common in association with shoulder injury. A comprehensive evaluation process can show the causative factors and lead to effective treatment protocols. The complexity of scapular motion and the integrated relationship between the scapula, humerus, trunk, and legs suggest a need to develop rehabilitation programs that involve all segments working as a unit rather than isolated components. This is best accomplished with an integrated rehabilitation approach that includes rectifying deficits in mobility, strength, and motor control but not overtly focusing on any one area...

Introduction Mediolateral shortening is a risk in treatment of clavicle shaft fracture., and can lead to scapular dyskinesis and shoulder dysfunction. Many studies advocated surgical treatment if shortening exceeds 15 mm. Hypothesis Clavicle shaft shortening of less than 15 mm has negative impact on shoulder function at more than 1 year's follow-up. Materials and methods A retrospective case-control comparative study was performed, with assessment by an independent observer. Clavicle length was measured on frontal radiographs showing both clavicles, and the ratio between the healthy and affected sides was calculated...

BACKGROUND: Maintaining scapular mechanics is important for upper extremity functionality and posture. Determining the extent to which the scapular stabilizer muscles affect the scapular position may guide the creation of an exercise program for people with scapular dyskinesis. HYPOTHESIS: The serratus anterior (SA), upper trapezius (UT), middle trapezius (MT), and lower trapezius (LT) muscles play different roles on scapular position when humeral elevation increase...

The primary purpose was to investigate the influence of scapular dyskinesis (SD) on pitching biomechanics and shoulder function in high school baseball pitchers. The secondary purpose was to identify possible factors associated with shoulder function in pitchers with SD. Thirty-eight pitchers were classified into the SD group (n=26) or the non-SD group (n=12). They were evaluated with the Kerlan-Jobe Orthopaedic Clinic shoulder and elbow (KJOC) scale and clinical measurements of shoulder characteristics, and with measurements of scapular kinematics, muscle activation, and ball speed during fastball pitching...

»: Scapular dyskinesis is an alteration of normal scapular kinematics. It is essential that each patient be evaluated holistically and that sport-related factors be taken into account. »: The presentation of scapular dyskinesis may be highly variable depending on the underlying etiology or associated pathology, but the onset of symptoms is often gradual. »: Sport-specific literature on scapular dyskinesis is most commonly reported in the context of baseball, swimming, and tennis...

PURPOSE: To analyze the shoulder alterations of professional tennis players during the competition season and to compare the differences between their dominant vs. non-dominant shoulders, as well as gender and age differences. METHODS: Two-hundred and seventy shoulders of (78 men and 57 women) professional active tennis players were assessed during 3 ATP and WTA tournaments. MAIN VARIABLES STUDIED: long head of biceps (LHB) tenderness and synovitis; glenohumeral internal rotation deficit (GIRD), total range of motion (TRM), external rotation (ER) and scapular dyskinesis (DK)...

TO OUR READERS: An error appeared in the following article: Yeşilyaprak SS, Yüksel E, Kalaycı MG, Karabay N, Michener LA. Shoulder kinesio taping does not change biomechanical deficits associated with scapular dyskinesis. J Appl Biomech. 2022;38(2):95–102. https://doi.org/10.1123/jab.2021-0259. Funding information for this study was not included in the Acknowledgments. The online version of this article has been corrected. The authors apologize for the error.

OBJECTIVE: Evaluate the scapular movement of Crossfit® practitioners and identify whether they present an increased incidence of scapular dyskinesis (SD) compared to non-practitioners. METHOD: A transversal study was evaluated quantitatively and dynamically, using retro-reflective spherical markers, the scapular movements of ten volunteers composing the control group, and 11 Crossfit® practitioners. The control group's results were used as a normality parameter and compared to those of the Crossfit® practitioner's group...