高强度间歇训练对肥胖女大学生体成分和血脂及空腹胰岛素水平的影响

Effect of High Intensity Interval Training on the Body Composition,Blood Lipid and Fasting Insulin Level of Obese Female College Students

目的观察高强度间歇训练(HIIT)对肥胖女大学生体成分、血脂和空腹胰岛素(FIN)水平的影响。方法 2015年1—6月选取浙江旅游职业学院符合纳入与排除标准的在校肥胖女大学生36例为研究对象。按研究对象体质指数(BMI)从小到大进行排序,先以4例为1层(共分为9层),采用随机数字表法将每层研究对象分为运动组和对照组,最终每组纳入18例。两组均给予自我运动锻炼宣教,运动组在此基础上给予集中的HIIT。于试验开始前1周及试验结束后1周检测研究对象体成分指标〔体质量、体质指数(BMI)、体脂肪、体脂百分比、内脏脂肪、去脂体质量、静息代谢率、腹围、臀围〕、血脂〔三酰甘油(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)〕水平、FIN水平。结果运动组试验后体质量、BMI、体脂肪、体脂百分比、腹围小于对照组,去脂体质量、静息代谢率大于对照组(P<0.05)。运动组试验后体质量、BMI、体脂肪、体脂百分比、腹围小于试验前,去脂体质量、静息代谢率大于试验前(P<0.05)。运动组试验后HDL-C水平高于对照组,LDL-C、FIN水平低于对照组(P<0.05)。运动组试验后HDL-C水平高于试验前,LDL-C、FIN水平低于试验前(P<0.05)。结论HIIT可以降低肥胖女大学生体脂含量,增加静息代谢率,同时改善血脂和FIN水平,对改善肥胖女大学生的健康水平有积极影响。

Objective To observe the effect of high intensity interval training（HIIT）on the body composition,blood lipid and fasting insulin（FIN）level of obese female college students. Methods From January to June 2015,we recruited 36 obese female college students who accorded with inclusion and exclusion criteria from Tourism College of Zhejiang. The subjects were ranked according to BMI from low to high,and were divided into nine levels with 4 subjects in each level. Using random number table method,we divided the subjects into exercise group（n = 18）and control group（n = 18）. The two groups both did exercise and education by themselves,and exercise group was also given centralized HIIT. One week before trial and one week after trial,we detected the body composition indexes（body mass,BMI,body fat,percentage of body fat,visceral fat,free fat body weight,resting metabolic rate,abdominal girth and hipline）,blood lipid（TG,TC,HDL-C and LDL-C）and FIN level of the subjects. Results Exercise group had lower body mass,BMI,body fat,percentage of body fat and abdominal girth,and higher free fat body weight and resting metabolic rate than control group（ P 〈 0. 05）. Exercise group had lower body mass, BMI,body fat,percentage of body fat and abdominal girth,and higher free fat body weight and resting metabolic rate after trial than those before trial（P 〈 0. 05）. After trial,exercise group was higher in HDL-C level and lower in LDL-C and FIN levels than control group（P 〈 0. 05）. Exercise group had higher HDL-C level and lower LDL-C and FIN levels after trial than those＆amp;nbsp;before trial（P 〈 0. 05）. Conclusion HIIT can reduce the body fat of obese female college students,increase their resting metabolic rate,better blood lipid and FIN level,which has a positive effect on the health level of obese female college students.