The effect of scapular-retractor fatigue on external and internal rotation in patients with internal impingement.
نویسندگان
چکیده
CONTEXT Scapular strengthening is thought to be an important component of the rehabilitation of patients with internal impingement. OBJECTIVE To determine the effect of scapular-retractor-muscle fatigue on internal- and external-rotation-torque production in patients with internal impingement. DESIGN Case control study. SETTING Outpatient clinic. PARTICIPANTS 15 patients and 18 healthy subjects. INTERVENTION A scapular-retractor-fatigue protocol. MAIN OUTCOME MEASURE Shoulder-rotation-torque production. RESULTS After the scapular-retractor-fatigue protocol external-rotation strength was reduced in patients (involved 25%, noninvolved 19%; P < .001). CONCLUSION Fatigue in the scapular retractors resulted in lower shoulder-rotation-torque production. These findings emphasize the importance of the scapular retractors for proper function of the shoulder rotators with the arm in an abducted position in patients with internal impingement.
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ورودعنوان ژورنال:
- Journal of sport rehabilitation
دوره 18 2 شماره
صفحات -
تاریخ انتشار 2009