Clinical Trials Logo

Clinical Trial Summary

Shoulder impingement syndrome is the most common shoulder disorder in overhead athletes. It describes a mechanical compression of subacromial bursa and rotator cuff tendons during arm movement, which results in pain and injuries. Most of previous studies focus on investigating motor performance in individuals with shoulder impingement syndrome and found altered scapular kinematics and muscle activation may contribute to the impingement. Recently few studies found changes in the central nervous system, decreases in corticospinal excitability and increases in inhibition in scapular muscles, by using transcranial magnetic stimulation (TMS). Although more studies are still needed to investigate the changes in central nervous system in the individuals with impingement syndrome, the changes in central nervous system are believed to be associated with the deficits of impingement syndrome. However, the exercise protocols for the impingement syndrome are usually designed to restore scapular kinematics and muscle activation, including scapular muscle strengthening exercise and scapular control exercise. To our knowledge, no study has investigated whether these exercise protocols can reverse these changes in the corticospinal system. The objectives of this proposal are to understand neuromuscular and neurophysiological mechanisms of the scapula-focused exercise protocols to improve the effectiveness of treatment. The study aims to investigate the effects of scapular muscle strengthening training and scapular control training on the scapular kinematics, muscle activation and corticospinal system. The study also aims to investigate whether any other cortical mechanisms are also affected by the shoulder impingement syndrome. We will recruit 70 overhead athletes with shoulder impingement syndrome and 22 healthy control athletes. Subjects with shoulder impingement syndrome will randomly receive either scapular muscle strengthening or scapular control training. When performing the exercise, subjects in the scapular control training group will receive electromyography feedback and cues but those in the strengthening training group will not. Immediate effects of these two training protocols on scapular kinematics, muscle activation, and neurophysiological measures will be tested before and after the training. Neurophysiological measures will be tested by TMS, including corticospinal excitability, cortical inhibition, intracortical inhibition, and intracortical facilitation.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04014491
Study type Interventional
Source National Yang Ming University
Contact
Status Completed
Phase N/A
Start date October 22, 2019
Completion date February 28, 2021

See also
  Status Clinical Trial Phase
Recruiting NCT04330027 - Effectiveness of Lyophilized Growth Factors for Subacromial Impingement N/A
Recruiting NCT02909920 - Effectiveness of Telerehabilitation Program in Subacromial Syndrome (Telerehab Sis) N/A
Completed NCT02598947 - The POST Study; POsterior Shoulder Tightness in Rotator Cuff Related Disorders N/A
Terminated NCT02669303 - Platelet-rich Plasma (PRP) Injection for Treating Shoulder Subacromial Impingement Syndrome N/A
Completed NCT02670174 - Influence of Kinetic Chain Training on the Treatment Outcome of Overhead Athletes With Impingement N/A
Active, not recruiting NCT01441830 - Radial Extracorporeal Shock Wave Therapy (rESWT) Treatment of Subacromial Shoulder Pain Phase 3
Completed NCT01885377 - SWESS: The SWedish Exercise Shoulder Study in Primary Care for Patients With Subacromial Pain N/A
Completed NCT03667833 - Shoulder Brace on Muscle Activation and Scapular Kinematics in Patients With Shoulder Impingement Syndrome and Rounded Shoulder Posture N/A
Completed NCT01623011 - Can Shoulder Arthroscopy Work N/A
Completed NCT05528705 - Investigator Initiated Trial to Evaluate Efficacy and Safety of LAENNEC (Human Placenta Hydrolysate) Administered by Ultrasonography Guided Subacromial Bursa Injection in Patients With Shoulder Impingement Syndrome N/A
Completed NCT05897866 - Sayed Issa's Hybrid Shoulder Arthroscopic-Open Surgical Management (HSSM) N/A
Completed NCT01090271 - Effects of Eccentric Training for Shoulder Abductors in Subjects With Shoulder Impingement Syndrome N/A
Recruiting NCT06081088 - Graded Motor Imagery Training in Shoulder Impingement Syndrome N/A
Recruiting NCT06092502 - Subacromial Pain Syndrome and Graded Motor Imagery N/A
Completed NCT05605730 - Maitland Thoracic Mobilization Versus Mulligan Thoracic Mobilization in Kyphotic Patients With Shoulder Impingement Syndrome N/A
Completed NCT04154345 - Exercise Into Pain in Chronic Rotator Cuff Related Shoulder Pain: a Prospective Single-Group Feasibility Study N/A
Recruiting NCT05957952 - The Effects of Dynamic Taping With Exercise on Neuromuscular Control in Individuals With Subacromial Impingement N/A
Not yet recruiting NCT03554538 - Efficacy of a Web App With Multimedia Animations to Teach Therapeutic Exercise in Shoulder Pain N/A
Recruiting NCT02285868 - ATI Evidence-based Guide Investigating Clinical Services
Completed NCT01414569 - Dexamethasone for Pain After Shoulder Surgery Phase 4