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회전근개 전층파열 환자의 등속성 외전 운동 시 각속도에 따른 견관절 주위근 활성도 변화
전아영 ( Ah Young Jun ),유연식 ( Yon Sik Yoo ),최은희 ( Eun Hi Choi ),김용중 ( Yong Joong Kim ),강석원 ( Seok Won Kang ),김건구 ( Keon Koo Kim ),정운섭 ( Woon Seob Jeong ) 대한스포츠의학회 2009 대한스포츠의학회지 Vol.27 No.2
This study investigated the differential muscular firing patterns of the shoulder muscles in patients with full-thickness rotator cuff tear. Eleven patients with unilateral rotator cuff tear were recruited. During isokinetic exercises, the muscular activities of upper trapezius, serratus anterior and lateral deltoid were recorded by surface EMG. Subjects performed isokinetic shoulder abduction of 60°/sec, and 180°/sec. The mean EMG amplitude of root mean square (RMS) was calculated to a percentage of maximal activity for each muscle. In the rotator cuff tear sides, the muscular activities of lateral deltoid in abduction were increased in 180°/sec compared to 60°/sec. And the EMG activities of upper trapezius and serratus anterior in the lesion side were significantly decreased compared to sound side in abduction of 180°/sec. But, in the case of lateral deltoid, the EMG activities were not different between sound and lesion sides in abduction of 180°/sec.