抗阻训练对肥胖儿童身体成分血脂及血清瘦素的影响

了解8周抗阻训练对肥胖儿童身体成分、血脂及血清瘦素的影响,为改善肥胖儿童的健康水平以及寻求更好的减肥方法提供理论依据.方法 根据WHO推荐的身高标准体重法,选取晋中市18名肥胖儿童(男、女各9名)进行8周抗阻训练,然后对运动前后身体成分体重、体质量指数(BMI)、肌肉量及躯干肌肉量、身体脂肪量、身体各部位脂肪量及身体脂肪比率]、血脂总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白(LDL)、高密度脂蛋白(HDL)]及血清瘦素水平进行比较.结果 肥胖儿童抗阻训练后血清瘦素、TG、LDL水平均下降(P值均<0.05),HDL水平上升(P<0.01);男性肥胖儿童抗阻训练后体重,BMI,身体脂肪量,左右上肢及躯干脂肪量均下降(P值均<0.05),肌肉量及躯干肌肉量均增加(P值均<0.05);女性肥胖儿童抗阻训练后BMI,身体脂肪量,右下肢、右上肢及躯干脂肪量均下降(P值均<0.05),肌肉量及躯干肌肉量增加(P值均<0.01).结论 8周抗阻训练可以降低肥胖儿童BMI、身体脂肪量和血清瘦素水平,增加肌肉质量,改善血脂紊乱.

Effects of resistance training on body composition,blood lipids and serum leptin level in the obese children

Objective To explore the effects of resistance training on body composition,blood lipids and serum leptin in obese children.Methods Eighteen obese children (9 girls and 9 boys) were given 3 days per week resistance training for 8 weeks.Body composition (body weight,body mass index,muscle mass and trunk muscle mass,body fat mass and body fat percentage),blood lipids (total cholesterol,TC;triacylglycerol,TG;low density lipoproterin,LDL;high-de-nsity lipoprotein,HDL) and serum leptin level were tested before and after the resistance training intervention.Results After 8-week resistance training intervention,serum leptin,TG and LDL levels significantly decreased(P<0.01 for leptin,P<0.05 for TG and LDL),HDL level increased (P< 0.01) in obese children;Body weight,BMI,body fat mass,upper limb (left and right) and trunk fat mass significantly decreased (P<0.01,P<0.05),muscle mass and trunk muscle mass significantly increased (P<0.05) in obese boys;BMI,body fat mass,upper,lower limb (right) and trunk fat mass significantly decreased (P<0.01,P<0.05),muscle mass and trunk muscle mass significantly increased among obese girls (P<0.01).Conclusion Eight-week resistance training has significantly reduced BMI,body fat mass and serum leptin level,increased muscle mass in obese children.The reduction in fat mass and increases in blood lipid might relate to reduction of serum leptin due to resistance training in obese children.