테니스 선수의 어깨 통증과 플랫서브 동작의 견갑골 움직임 분석
Analysis shoulder pain of tennis players and the movement of the scapula in flat serve
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본 연구는 테니스 1st 플랫서브 동작에서 어깨 통증 유무에 따른 견갑골의 움직임 차이를 확인하기 위해 테니스 선수 15명(남8, 여7)을 대상으로 3차원 영상분석시스템을 활용하여 견갑골의 앞쪽/뒤쪽 기울임, 아래쪽/위쪽 회전 및 안쪽/바깥쪽 회전에 대한 각속도와 모멘트를 산출하여 이를 집단 간 비교 분석을 하였다. 그 결과, 앞쪽/뒤쪽 기울임에 대한 최대 각속도는 실험군인 어깨통증집단(SPG)보다 대조군 집단(CG)이 빠른 경향을 보였으며, 팔로우 스로우 구간을 제외하고 모든 국면에서 안쪽/바깥쪽 회전 최대 각속도가 SPG가 CG보다 빠른 것으로 나타났다. 후기 코킹 구간에서의 앞쪽/뒤쪽 기울임 최대 모멘트가 SPG보다 CG가 더 크게 나타났고 통계적으로 유의한 차이를 보였다. 코킹 구간의 위쪽/아래쪽 회전 최대 모멘트 또한 SPG가 CG보다 작게 나타나면서 통계적으로 유의한 차이를 보였다. 안쪽/바깥쪽 회전 모멘트는 모든 국면에서 CG가 SPG보다 큰 것으로 나타났다.
Abstract
This study used a three-dimensional motion analysis system for 15 elite tennis players (male 8, female7) to identify the relevance of scapula movement to shoulder pain. During the flat serve, the angular velocity and joint moment of scapula anterior/posterior tilt, downward/upward rotation, internal/external rotation were calculated and this was compared between groups. As a result, the maximum angular velocity for the anterior and posterior tilt tended to be higher in control group(CG) than in the shoulder pain group(SPG), and the maximum angular velocity for internal and external rotation in all phases except the follow-through phase was higher than that of CG. The maximum moment for the anterior and posterior tilt in the late coking phase was statistically significantly higher than that of SPG, the joint moment for the downward and upward rotation of the coking phase was statistically significantly lower than that of CG, and the moment for the internal and external rotation, the SPG was found to be lower than that of CG in the whole phases.
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