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성장호르몬 , IGF-1 과 비만지표의 상관성 및 운동에 의한 변화
김성수(Seong Soo Kim),위승두(Seung doo Wee),이재현(Jae Hyun Lee),박호윤(Ho Yoon Park),조성연(Seong Yeon Cho),한상완(Sang Wan Han),박현정(Hyun Jung Park),김동환(Dong Hwan Kim) 한국사회체육학회 2001 한국사회체육학회지 Vol.16 No.-
This study is to investigate the correlation between obesity and growth hormone and IGF- I, and the change of these hormones by exercise program. For this, we selected 22 obese children and 17 normal weight children aged 10~12. First of all, we analyzed the difference of these hormones between obese group and normal weight group by independent t-test, and the correlation between several indexes of obesity and these hormones. Among these subjects, obese group was divided into two groups, exercise group and non-exercise group. The children of exercise group carried on exercise program 40 minutes, three times a week for 10 weeks and the change was analyzed by repeated measures ANOVA. The conclusion was that the concentrations of growth hormone and IGF- I of obese group are lower than those of normal weight group significantly and especially the rate of abdominal fat among several obese indexes showed relatively strong correlation with these hormones. As the result of exercise program, there were no significant differences between the groups in growth hormone and IGF- I even though there were significant differences in the changes of % body fat, the rate of abdominal fat, the degree of obesity and BMI. But, the attention should be taken in inducing conclusion because there would be several factors influencing the results like individual physiological conditions and the contents of exercise, and the degree of correlations between these hormones and the indexes of obesity were somewhat low.
걷기운동이 비만남자 대학생의 신체조성과 혈중 Adiponectin, Ghrelin, Resistin 및 인슐린 저항성에 미치는 영향
서영환(Young Hwan Seo),손연희(Youn Hee Son),위승두(Seung Doo Wee) 한국발육발달학회 2011 한국발육발달학회지 Vol.19 No.2
The purpose of this study was to investigate effects of walking exercise on body composition, insulin resistance, circulating concentration of diponectin, ghrelin and resistin in obese male university students. Subjects were divided into control group (n = 14) and walking exercise group (n = 13). Walking exercise was performed 4 times a week at the intensity of 65-75% HRmax (1-4 weeks: 65% HRmax, 5-8 weeks: 70% HRmax, 8-12 weeks:75% HRmax). And the change of body composition, blood glucose, insulin, HOMA-IR, adiponectin, ghrelin and resistin has been measured before and after 12 weeks of exercise. Statistical technique for data analysis was two-way ANOVA to determine the difference between before and after 12 weeks of walking exercise. As a result, body weight, BMI, and VO<sub>2max</sub> were significantly improved during post-exercise. The change of adiponectin, ghrelin and resistin in experimental group was significantly changed after 12-week walking exercise. The present study provides the possibility that walking exercise may be a critical mediator to improve insulin resistance, concentrations of adiponectin, ghrelin and resistin in obese male university students.