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스포츠 과학기반 인체모델 구축 및 인체영향 평가기술 개발(1)
이대연(Dae Yeon Lee),정문균(Moon Kyoun Jung),정경렬(Kyung Ryul Chung),김사엽(Sa Yup Kim),김창국(Chang Kook Kim) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.44
The purpose of this study was to investigate the torque-angle relationship of the knee flexor and extensor in healthy adults. Eighty-one subjects were participated in this study(men: forty, women: forty-one). The participants performed maximal voluntary isometric contractions at five knee joint angle(90, 70, 50, 30, 10). As for statistical verification, repeated measures ANOVA was conducted, and in case that there were significant differences in torque according to the changes in knee angle, contrast test for the rest of the knee angles based on peak angle was performed. The maximal torque was greater in the men group than women group in all the knee angles(flexor, extensor). Torque-angle relationship curve was revealed similar pattern in previous study. The torque estimation equations are as follows. 1. Flexor male: y=0.652x3-10.79x2+59.42x+2.155 (R²=0.999) female: y=0.424x3-6.601x2+34.65x-3.975 (R²=1) 2. Extensor male: y=4.572x3-54.51x2+161.7x+37.46 (R²=0.994) female: y=1.522x3-21.77x2+71.92x+28.76 (R²=0.999)
스포츠 과학기반 인체모델 구축 및 인체영향 평가기술 개발(2)
이대연(Dae Yeon Lee),박성진(Sung Jin Park),정문균(Moon Kyoun Jung),정경렬(Kyung Ryul Chung),김사엽(Sa Yup Kim),김창국(Chang Kook Kim) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.45
The purpose of this study was to determine the effects of the 12 weeks resistance exercise on torque-angle relationship of the knee flexor and extensor in healthy adults. 121 subjects were participated in this study(men: 67, women: 54). The participants performed 12 weeks resistance exercise and we were measured pre and post maximal voluntary isometric contractions at five knee joint angle(90, 70, 50, 30, 10). As for statistical verification, repeated measures ANOVA was conducted, and in case that there were significant differences in torque according to the changes in knee angle, contrast test for the rest of the knee angles based on peak angle was performed. Themaximal =torque was greater in the post-exercise than pre-exercise in all the knee angles(flexor, extensor & male, female) Torque-angle relationship of the knee flexor and extensor curve was inclined to make rather upward shift in the post-exercise than in the pre-exercise. However, there were no statistically significant difference between pre and post-exercise.