The shoulder injury was resulted from muscle imbalance between acceleration and deceleration during the throwing. The agonist-antagonist muscle strength relationship for throwing was formerly described as functional ratios of eccentric external rotator to concentric internal rotator moments and eccentric internal rotator to concentric external rotator moments. The purpose of this study was to measure the ratio of concentric and eccentric strength of the shoulder rotators by isokinetic muscle performance in Korean throwing college athletes for descriptive data. On 10 dominant shoulders of asymptomatic throwing college athletes applying Cybex II isokinetic dynamometer, concentric and eccentric muscle strength of the rotators were measured at the speed of 90o/s, 180o/s, 240o/s. Maximal torque ratio of the eccentric strength of the external rotator against the concentric strength of the internal rotator was 1.25, 1.13, 1.21 at the each speed. The functional external eccentric-to-internal concentric ratio was similar with previous published studies. There was no significant difference between each speed. Eccentric strength of the external rotator was higher than concentric strength of the internal rotator during internal and external rotation at all speeds. This functional assessment of strength testing that reflected the importance of eccentric external rotation strength for the dynamic shoulder joint stability during the throwing. Therefore, the increase of the eccentric strength of the external rotator would be helpful to prevent the shoulder injury and to treat for rehabilitation of injured shoulder.
[관절][주관절][고관절][근육][견부통증][등척성운동][도수저항운동]주관절, 고관절 고찰 및 고관절과 근육, 관절의 가동범위와 측정, 관절과 등척성운동, 관절과 견부통증, 관절과 도수저항운동 심층 분석
[운동치료] 임신과 운동, 요실금에 관해
[의학] 근수축 질환에 대한 소개
[운동과 건강] 근 기능 향상을 위한 운동처방
상급 성인 간호학 세미나 재활 Rehabilitation 재활 의미 재활 모델 재활 평가
[체육학] 운동처방의 목적과 방법fp
[관절염][류마티스]관절염의 의미와 증상, 관절염의 치료시기, 퇴행성관절염, 류마티스관절염(류머티스, 류머티즘, 류마티즘), 관절염의 치료법, 관절염 환자의 자조관리, 관절염 환자의 관리방안 심층 분석