有氧及复合运动对单纯性肥胖青少年身体形态和生化指标影响

评价有氧运动及复合运动方式对改善单纯性肥胖青少年体脂和血液生化指标的影响,为指导肥胖学生科学有效地控制体重提供参考.方法 将43名参加2015年暑期江苏某减肥夏令营的肥胖或超重青少年随机分为有氧运动组(22名)和有氧运动结合核心力量训练的复合运动组(21名),进行为期6周的运动干预.分别在入营后和出营前进行体重、体脂率、体质量指数(BMI)、腰围、臀围、大腿围等形态指标和空腹血糖(GLU)、血清胰岛素(INS)、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL)和低密度脂蛋白(LDL)等血液生化指标测量.结果 经过6周2种运动干预,肥胖青少年的体成分和人体围度指标均下降,与运动前差异均有统计学意义(P值均<0.05).复合运动组BMI、体脂率、腰围、臀围、大腿围、皮褶厚度的改善幅度均比有氧运动组高.6周的运动干预后,血脂、血糖和血清胰岛素的指标均有变化,且两组TC,LDL变化差异均有统计学意义(有氧运动t值分别为2.736,2.091;复合运动t值分别为2.574,2.991,P值均<0.05);复合运动组的血清胰岛素改善幅度比有氧运动组更大,差异有统计学意义(P<0.05).结论 有氧运动、复合运动干预均能有效改善肥胖青少年体脂和代谢指标.

Comparison of the effectiveness of two types of exercise intervention on body fat and biochemical indices among obese adolescents

Objective To compare the effectiveness of aerobic exercise and combined exercises on body fat and biochemical indices among simple obesity adolescents.Methods Totally,43 overweight and obese adolescents were selected from 2014 Jiangsu weight-loss summer camps.Participants were randomly divided into two groups,one group received aerobic exercise,and another group received combined exercises(aerobic exercise combined with core strength training).Both group underwent 6 weeks of exercise intervention.Body weight,body fat percentage(BF%),body mass index(BMI),waist circumference,hip circumference and thigh circumference and biochemical indices including fasting plasma glucose(GLU),serum insulin(INS),total cholesterol (TC),three acyl glycerin(TG),high-density lipoprotein(HDL) and low density lipoprotein(LDL) were measured before and after intervention,respectively.Results After six weeks intervention,both groups showed a significant decline in BMI,waist circumference,hip circumference,and thigh circumference(P<0.05).Nevertheless,improvement of BMI,BF%,waist circumference,hip circumference,thigh circumference and skinfold thickness were greater in combined exercise group than aerobic exercise group.Meanwhile,GLU,INS and blood lipid were changed after intervention.TG,LDL variations had significant difference among two intervention group(P<0.05).Compared with aerobic exercise group,greater improvement of INS was found in combined exercise group(P<0.05).Conclusion After six weeks intervention,aerobic exercise and combined exercise could both improve body fatand metabolic function effectively among overweight and obese adolescents.