Restricted scapular mobility during arm abduction: implications for impingement syndrome.

摘要: Scapular mobility plays a central role in normal shoulder function, and alterations scapular have been suggested as factor impingement syndrome. We therefore measured the effect of restricted during arm abduction on acromiohumeral coracohumeral distances. For control measurements, healthy volunteers (n = 10, all male, age range 25-35 years) underwent multislice computed tomography supine position, with humerus actively maintained plane at 45° internal rotation 60, 90 or 120° abduction. To restrict custom-made brace was then placed each volunteer fastened firmly bandages, measurements were repeated. From three-dimensional images acromio humeral distances meas ured. With 90° abduction, distance significantly reduced (Student’s t test). This result suggests that impinge ment syndrome may functional component.