Effects Of Aerobic Exercise And Nutrition On Physical Fitness And Metabolism Of Obesity Adolescents

Objective:This study was designed to measure the influence of aerobic exercise,nutrition or both on physical fitness and metabolism in obesity adolescents.We expected to offer some theory and practice data for intervention program of obesity adolescents.Methods:124 subjects were examined(94 with overweight/obese),aged 12-16years,who are in the growth period.The group of overweight/obese adolescents made 10 weeks exercise alone,nutrition alone,and exercise combined with nutrition,the change of body composition,physiology function,physical fitness and metabolism are checked before and after.Results:In the group of exercise,nutrition or both,BMI,body fat,body fat%,and chest size,waist size,hip size and waist-to-hip ratio of subjects were all decreased.Exercise,and exercise combined with nutrition can improve the performance of 50m,1000m,sitting bent forward and 3 line drill in boys.Exercise alone can improve the performance of sitting bent forward and 800m in girls.Nutrition alone can only improve the performance of the sitting bent forward in boys.Exercise alone decreased TC,HDL-C,and increased 1/2hBG,FINS,1/2hINS,2hINS,HOMA-IR, and HOMA-β.Nutrition alone decreased TC,LDL-C,HDL-C,and increased 2hBG.Exercise combined with nutrition decreased TC,LDL-C,HDL-C,and increased FINS,2hINS,HOMA-β.Conclusions:(1).In obesity adolescents,the level of obese is higher than healthy subjects,and the physical fitness is worse than healthy ones.10-weeks aerobic exercise,nutrition or exercise combined with nutrition can all decrease the level of obese,10-weeks aerobic exercise, and exercise combined with nutrition can strengthen the cardiorespiratory and muscular fitness of the obese adolescent.The effect of 10-weeks aerobic exercise combined with nutrition on performance is the best.(2).The function of metabolism is worse than healthy ones.(3).The effect of aerobic exercise combined with nutrition on blood lipid metabolism is the best.Exercise and exercise combined with nutrition can enhance the function of theβ-cell of pancreas.The effect of nutrition on blood glucose metabolism is the best.But the effects of exercise and/or nutrition on insulin resistance are not clear.