HIIT和持续性有氧运动对肥胖女大学生减肥效果的比较研究

Comparison of Weight Loss Effects Carried out by HIIT and Continuous Aerobic Exercise of Female Obese College Students

研究目的:探讨HIIT减肥方法对于肥胖女大学生的应用效果和可靠性。研究方法:60名肥胖女大学生(BMI≥26,且体脂%≥30%)随机分为HIIT组(H)和持续有氧运动组(M)及对照组(C)。受试者进行逐级递增负荷测定VO2max,分别提取85%VO2max、40%～60%VO2max的HR及监测RPE,制定HIIT和持续性有氧运动处方,分别进行每周5次的12周运动训练(实施过程中用Polar表和PRE监控强度,H组运动能量消耗不大于M组),C组保持原有生活状态;实验前、后对受试者进行身体形态和机能指标的测量与对比。结果:实验后受试者体重、BMI、腰臀比、体脂%均呈非常显著性降低(P<0.01);VO2max、LF、SV显著性提高(P<0.05);且H组的体脂%、LF、SV、VO2max、肺活量的变化显著高于C组(P<0.05)。结论:HIIT运动使用较少的时间即可以达到更好的减肥效果,且对于女大学生安全可靠。

Objective〉 To investigate application and probability of weight loss technique of HIlT in female obese college students. Method： 60 {enaale obese college students with BMI 〉26 and body fat 〉30% were randomly allocated into the HILT, continuous aerobic exercise and the control group. The subject undertook a graded exercise test to obtain VO2max, during which time HR at 40 〉 60 % and 85 % of VO2 max were recorded. Then, they carried out a 12- week, five sessions per week, exercise training followed by prescribed HIlT and continuous aer- obic exercise prescription respectively. The energy expenditure of both groups during the train- ing was required at the same level, and the training intensity was monitored either by Polar watch or by RPE. The subjects in the control group maintained their normal lifestyle. Body composition and functional capacity of the subjects were measured pre and post the 12-week exercise intervention. Results： Body mass, BMI, waist-hip ratio and body fat of the subjects were decreased significantly, and V02 max, left ventricular ejection fraction and stroke volume were increased significantly following the training. The improvements in body fat, left ventricu- lar ejection fraction, stroke vohtme and VO2 max of the HIIT group were significantly larger than that of the control group. Conclusion： The HIIT program presents a better effectiveness of weight loss with a less time compared with continuous aerobic exercise, and is a safe and re- liable treatment for female obese college Students.