Dec 14, 2019
Onset of Shoulder Muscle Activation During Internal and External Shoulder Rotation
Scapulae activation and the order of muscle activation tends to be changed in patients with shoulder disorder and abnormal muscle activate pattern is the risk for shoulder disability. However, previous studies have only explored shoulder elevation in regard to the order of shoulder muscle activation. Hence, the order of muscle activation during other shoulder movements is unknown. The purpose of this study was to investigate the order of shoulder muscle activation during internal and external shoulder rotation.