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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제16권
발행연도
2001.11
수록면
281 - 296 (16page)

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초록· 키워드

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The purpose of this study is to examine the effect of taking protein supplements on the bodily structure and muscular function in weight training. Subjects were selected from healthy males in the middle and the last half of 20-aged, who share the same taste, weight training. They were divided into the protein supplemental intake group(4 persons) and the non-take group(5 persons) and prescribed to take the same weight training 5 days a week for 10 weeks. At the intensity of exercise, 1-RM 70%-80%, they took total 75 minutes of training. In detail, 15 minutes were assigned to warming up(jogging and stretching), 50 minutes to the main exercise(by independent daily training program) and 10 minutes to the finishing exercise(stretching). Followings are the results of the study; 1. Analysis of bodily structure Thickness of hypodermic fat sowed a significant decrease(p<0.05) before and after the protein supplements intake and the non-take period by the chest and biceps brachia. The girth showed a significant increase(p<.001) before and after the protein supplements intake and the non-take period by the upper arm. 2. Analysis of muscular function The back strength, grip(right hand), flexibility of trunk extension and muscular endurance in sit up showed a significant increase(p<0.05, p<0.001) before and after the protein supplements intake and the non-take period. The mean power output of Wingate test showed a significant difference(p<0.05) between the intake group and the non-take group. 3. Test of isokinetic muscular function of knee In flexion at 60˚ of angular velocity, there was a significant increase(p<0.05) before and after the protein supplements intake, and in extension at 60˚ and 180˚ of angular velocity, there was a significant increase(p<0.05) and (p<0.01, p<0.05) respectively before and after the protein supplements intake. In flexion at 60˚ of angular velocity, there was a significant increase(p<0.05) before and after the protein supplements intake, and at 180˚ and 240˚ of angular velocity, there was no significant increase in both the intake and non-take group. In extension at 180˚ of angular velocity, there was a significant increase(p<0.001, p<0.01) before and after the protein supplements intake and in groups. Both groups did not show a significant difference in knee flexion at 180˚ of angular velocity, but did show it(p<0.06) in average power of weight in case of right knee extension. Both groups showed a significant difference(p<0.05) in case of knee flexion at 240˚ of angular velocity., but did not show it in case of extension. In conclusion, both groups did not, or partially showed a significant difference in bodily structure and muscular power, suggesting the effect of the protein supplements is not strong. This finding is supported by the effect of 10 weeks` weight training. A careful consideration is required when selecting the protein supplements. It seems most desirable to get protein from fresh foods.

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