Eccentric muscle actions are known to induce temporary muscle damage, delayed onset muscle soreness and muscle weakness that may persist for several days. The purpose of this study was to examine the effects of bench-stepping exercise on pheriphral biomarkers of muscle damage and isokinetic muscle strength. Eight healthy, untrained male subjects performed eccentric contractions during 30 min of bench stepping(50 cm step, 15 steps min-1). Isokinetic Muscle strength and plasma aldolase, creatine kinase(CK), lactate dehydrogenase(LDH), glutamic oxaloacetic transaminase(GOT), glutamic pyruvic transaminase(GPT), cortisol, testosterone measured before and during 3 days following exercise bout. Muscle strength decreased 1-2 day post-exercise, thereafter recovering to basal levels, and aldolase and CK activity changed of vice versa. The changes of LDH and GOT were not showed significant difference with basal levels. The exercise did not appear to significantly affect serum levels of GPT and teststerone. The results suggest that decreased muscle strength correlated with activity of aldolase, CK, LDH, and GOT levels.
현대사회에 있어서 신체활동 연구의 주요 탐구과제는 ‘신체활동을 통한 교육’으로부터 ‘인간의 기본적인 움직임’을 목표로 하는 스포츠적인 움직임을 중심으로 한 생명 활동의 개념으로 급속히 변화되고 있는 추세이다. 이러한 환경변화에 대응하기 위하여 본학회는 ‘체육’적인 요소에서 ‘스포츠’적인 요소를 중심으로 한 학문적 정체성을 견고히 하고, 정기적인 학술지 발간과 학술활동을 통해 한국스포츠츠 문화의 발전과 학문적인 발전에 기여하는데 그 목적이 있다.