Altered Corticospinal Excitability of Scapular Muscles in Patients with Shoulder Impingement Syndrome

Not Applicable

Completed

• Conditions: shoulder impingement syndrome; Musculoskeletal - Other muscular and skeletal disorders; Physical Medicine / Rehabilitation - Physiotherapy; Neurological - Studies of the normal brain and nervous system

• Registration Number: ACTRN12616000074493
• Lead Sponsor: Yi-fen Shih

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2016-01-22
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 34

Inclusion Criteria

Patients with shoulder impingement syndrome with age between 20 and 45 years old; exercise induced shoulder pain for 3 months; painful arc with active shoulder elevation; two or more positive signs in the following impingement screening tests: (1) subacromion pain with shoulder elevation or tenderness on the greater trochanter of the humerus; (2) Neer impingement test; (3)Hawkins-Kennedy impingement test; (4) Empty can test. Asymptomatic subjects were recruited from personal contacts. The inclusion criteria for control group included no current symptom and past history of the testing shoulder.

Exclusion Criteria

(1) a history of shoulder dislocation, or trauma; (2) shoulder surgery in the past 6 months; (3) neurological symptoms or anesthesia on upper extremity; (3) seizure; (4) any mental implantation.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The central neuromuscular control of trapezius and serratus anterior muscles were examined by transcranial magnetic stimulation (TMS)(MagStim 200 stimulator, MagStim Company,UK )[Immediately after the history taking.];Kinematic data of the scapula measured by Liberty electromagnetic tracking system.[After the history taking and central neuromuscular control evaluation. ];Surface electromyography was used to collect the muscle activity of upper trapezius, lower trapezius, and serratus anterior.[After the history taking and central neuromuscular control evaluation. ]

Secondary Outcome Measures

Name	Time	Method
Shoulder muscle strength recorded by a hand-held dynanometer.[Immediately after the central neuromuscular control, muscle activity and scapular kinematics evaluation. ]