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involve damage to one or multiple of the rotator cuff muscles. These muscles are the supraspinatus, infraspinatus, teres minor, and the subscapularis. The acronym S.I.T.S can be used to remember each muscle of the rotator cuff. These muscles help to stabilize the glenohumeral joint as well as movement of the humerus in space. The supraspinatus is the most commonly injured RC muscle. The supraspinatus is responsible for assisting in abduction of the shoulder joint, it can be damaged in repetitive overhead motions, subacromial impingement, or falling

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