高强度间歇运动及中等强度持续运动对中老年2型糖尿病患者有氧能力的影响

Effects of high-intensity interval training and moderate-intensity continuous training on the aerobic capacity of middle-aged and elderly patients with type 2 diabetes

目的探讨高强度间歇运动(HIIT)及中等强度持续运动(MICT)对中老年2型糖尿病患者有氧能力的影响。方法采用随机数字表法将95例2型糖尿病患者分为HIIT组(35例)、MICT组(35例)及安静对照组(CON组,25例)。3组患者均维持日常生活习惯不变,HIIT组和MICT组患者分别采用功率车测功仪进行8周相应方式运动训练,每周运动4次。于训练前、训练8周后采用递增负荷运动试验检测各组患者最大摄氧量(VO2_(max))水平,同时记录运动期间各组患者不良反应情况。结果共有83例患者(87.4%)完成整个训练,HIIT组和MICT组失访率分别为12.6%和14.3%,训练计划完成率(反映患者运动依从性)分别为(91.2±5.0)%和(88.2±4.7)%;在整个研究期间2组患者均未发生严重不良事件。训练8周后HIIT组和MICT组VO2_(max)分别较训练前提高(11.5±2.3)%和(8.1±1.9)%,此时组间差异仍无统计学意义(P>0.05)。结论HIIT训练或MICT训练均适用于中老年2型糖尿病患者,且训练过程中患者耐受性及安全性良好;HIIT训练或MICT训练对中老年2型糖尿病患者有氧能力具有相似的改善效应,有助于提高患者生活质量。

Objective To explore the effect of high-intensity interval training(HIIT)and moderate-intensity continuous training(MICT)on the aerobic capacity of middle-aged and elderly patients with type 2 diabetes.Methods A total of 95 patients with type 2 diabetes(aged 45 to 70 years)were randomly divided into an HIIT group(n=35),an MICT group(n=35)and a sedentary control group(CON group)(n=25).All of the subjects maintained their daily habits,but the HIIT and MICT groups performed their corresponding exercise using a bicycle ergometer 4 times/week for 8 weeks.Before and after the 8 weeks,each subject′s maximum oxygen uptake(VO2_(max))was measured using a graded exercise test.Results Eighty-three of the subjects(87.4%)completed the study.The follow-up loss rate in the HIIT group was 13%and in the MICT group it was 14%.After the intervention,the average VO2_(max) had increased by(11.5±2.3)%in the HIIT group and(8.1±1.9)%in the MICT group,a difference which is not significant.Conclusion Either HIIT or MICT is feasible,well tolerated,safe and effective for improving the aerobic capacity of middle-aged and elderly patients with type 2 diabetes.