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The reduction in isometric strength could be firstly due to muscle deconditioning following SIS onset and secondly related to deficits in motor control of the muscles. Reduction in isometric strength of shoulder external rotation and abduction are the two most cardinal features of SIS. The most common clinical features include pain, limited range of motion, and decreased strength in the arm. The reduction in subacromial space can also occur due to mechanistic effects and improper scapular fixation resulting in compromise of the subacromial space and its structures. SIS is a term that describes a condition where the subacromial structures are compressed between the humeral head and the coracoacromial arch causing a myriad of signs and symptoms. Overhead athlete is referred as to one who regularly uses his arm above 90 degrees during play. Shoulder impingement syndrome (SIS) is a common musculoskeletal condition seen in overhead athletes, and it affects a large number of athletes at some point during their career.
Shoulder isometric exercises plus#
The study concluded that compared to MCE, PRE plus MT provides greater improvement in the isometric strength of scapulohumeral muscles. and UT muscles ( effect size: 0.39 to 0.40). Between groups analysis found the largest isometric strength improvement in PRE plus MT group for A.D, followed by Supr. However, athletes in PRE plus MT group presented a more pronounced increase in isometric strength than those in the MCE group. Relative to baseline, both interventions were found to be effective in increasing and optimizing the isometric strength of muscles ( ) except for supraspinatus in the MCE group ( ). Isometric strength of UT, MTr, LT, Supr, A.D, SA, and LD was measured at three-time points: baseline, 4th week, and 8th week. Athletes in both groups underwent management 3 times a week for 8 weeks.
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MCE group was submitted to motor control exercises in varied planar positions. Athletes in the PRE plus MT group underwent graduated exercises with resistance elastic band, stretching exercises, and mobilization of the thoracic and shoulder joints. 80 male university-level overhead athletes clinically diagnosed with SIS were randomly allocated into either of the two groups: PRE plus MT and MCE group.
Shoulder isometric exercises manual#
The purpose of this study was to compare the effects of two different treatment programs: progressive resistance exercises plus manual therapy (PRE plus MT) and motor control exercises (MCE), on isometric strength of upper trapezius (UT), middle trapezius (MTr), lower trapezius (LT), serratus anterior (SA), supraspinatus (Supr.), anterior deltoid (A.D), and latissimus dorsi (LD).
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Reduction in isometric strength of the scapulohumeral muscles is a commonly seen impairment in overhead athletes afflicted with shoulder impingement syndrome (SIS).