NCT04493190

The Effects of Short-term Scapular Control Training in Overhead Athletes With Shoulder Impingement Syndrome

Completed NA Last updated 6 April 2022

What this trial tests

NA trial testing Scapular control training in Shoulder Impingement Syndrome in 55 participants. Completed in 26 November 2021.

Timeline

2 November 2020

Primary endpoint
26 August 2021

26 November 2021

Quick facts

Lead sponsor	National Yang Ming Chiao Tung University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	single
Primary purpose	treatment
Enrollment	55
Start date	2 November 2020
Primary completion	26 August 2021
Estimated completion	26 November 2021
Sites	1 location across Taiwan

Drugs / interventions tested

• Scapular control training
• General exercise

Conditions studied

• Shoulder Impingement Syndrome — all drugs for Shoulder Impingement Syndrome →
• Scapular Dyskinesis — all drugs for Scapular Dyskinesis →

Sponsor

National Yang Ming Chiao Tung University

Who can join

Adults 20 to 40, any sex, with Shoulder Impingement Syndrome or Scapular Dyskinesis. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Subacromial impingement syndrome (SIS) is a common disorder of shoulder joint. SIS has been accounted for 44-65 % of all shoulder pain. It is believed that one important contributing factor is scapular dyskinesis. Patients with SIS demonstrates scapular dyskinesis, including decrease in upward rotation, scapular posterior tilt, and external rotation. Altered muscle activity of scapular muscles may contribute to scapular dyskinesis, such as increase in activity of upper trapezius, and decrease in activity of lower trapezius and serratus anterior. In addition to these changes in neuromuscular control, central nervous system may be re-organized in patients with musculoskeletal disorders. Evidence has been reported that center of gravity of motor mapping changes, corticospinal excitability decreases and inhibition increases in patients with shoulder injuries such as instability, rotator cuff tendinopathy and SIS. These corticospinal changes are believed to be related to chronicity of symptoms and lack of treatment effects.

Previous studies have applied many types of treatments to SIS, such as manipulation, taping, and exercises. However, most studies mainly focused on the outcomes of pain and function, few studies investigated changes in neuromuscular control following treatments. Yet, no study has addressed how corticospinal system changes following treatment in patient with shoulder injuries. Motor skill training, which has been widely used in training healthy subjects or patients with neurological disorders, has been shown to change corticospinal systems, including increasing excitability and decreasing inhibition. To our knowledge, no study has integrated the concepts of motor skill learning into a short-term treatment or investigated the effects of motor skill training on corticospinal systems in patients with SIS. The purposes of the study are to investigate the effects of short-term motor skill training on pain, neuromuscular control, corticospinal system in patients with SIS, and also to investigate whether changes in corticospinal parameters will be related to changes in pain, function and neuromuscular control.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.