장기간 운동이 비만 여중생의 신체구성 및 혈중 호르몬에 미치는 영향

Abstract

The purpose of this study was to evaluate the effect of aerobic exercise and resistance exercise on the body composition and blood hormone. The subjects for this study were thirty obesity girl students and divided into 3 groups : Control group(n =7), aerobic exercise(running) group(n=7) and resistance exercise(dumbbell) group(n=7) for 10 weeks. The aerobic exercise group performed running 30-40 min in a bout, four times a week at the intensity of 50-70% HRmax(1~5 week ; 50~60% HRmax, 6~10 week ; 61~70% HRmax). The resistance exercise group performed dumbbell exercise consisting 12 factor using 1-2kg weight(1~5 weeks ; 1kg, 6~10 weeks ; 2kg). Body composition(Body weight, %Fat, fat mass, WHR) and the change of Thyroxine(TSH), Testosterone(T), Cortisol(COR), and Insulin have been measured before, by post exercise 5 weeks and 10 weeks respectively. Statistical techniques for data analysis were One-way ANOVA exercise duration(before, 5 weeks, 10 weeks) and repeated measure ANOVA to determine the difference between the aerobic exercise group and the resistance exercise group. The 5% level of significance was utilized as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. Body composition- Body weight, %Fat, fat mass, WHR- were decreased significantly after long-term exercise in aerobic and resistance exercise group except control group. The change of TSH in the aerobic exercise group was decreased after 10 weeks of exercise. T and Insulin were decreased significantly after 10 weeks but COR was increased significantly after 10 weeks. The change of TSH and Insulin in the resistance exercise group were decreased significantly after 10 weeks of exercise. T was decreased after 10 weeks but COR was increased significantly after 10 weeks.