吉林大学学报(医学版)

• 临床医学 • 上一篇    下一篇

有氧运动对肥胖青少年心率变异性的影响

李光欣1,王占一2,吕 薇3,赵立君1   

  1. 1. 吉林大学体育学院,吉林 长春 130012;2.吉林省长春市第二实验中学,吉林 长春130022;3.吉林大学中日联谊医院药品管理部,吉林 长春 130033
  • 收稿日期:2014-03-01 出版日期:2014-09-28 发布日期:2014-11-24
  • 通讯作者: 吕 薇(Tel:0431-84995836,E-mail:16909865@qq.com) 赵立君(Tel:0431-85167063,E-mail:zlj@jlu.edu.cn) E-mail:16909865@qq.com;zlj@jlu.edu.cn
  • 作者简介: 李光欣(1979-),男,吉林省长春市人,讲师,主要从事运动医学的研究。
  • 基金资助:

     国家社会科学基金资助课题(14BTY086)

Influence of aerobic exercise in heart rate variability in obese adolescents

LI Guang-xin1,WANG Zhan-yi2,LYU Wei3,ZHAO Li-jun1   

  1. 1.School of Physical Education, Jilin University,Changchun 130012,China;2.  Changchun  Second Experimental Middle School,Jilin Province, Changchun 130022,China;3.Department of Drug Administration,China-Japan Union Hospital,Changchun 130033,China
  • Received:2014-03-01 Online:2014-09-28 Published:2014-11-24

摘要:

目的:探讨有氧运动对肥胖青少年心率变异性(HRV)的影响,为制定特异性的运动处方提供依据。方法:40名男性肥胖青少年[体质量指数(BMI) ≥                25 kg.m-2)]随机分为运动组(n=20)和对照组(n=20)。运动组受试者进行有氧运动干预,每周5次,每次持续50~60 min,共8周;对照组受试者保持日常生活习惯不变。实验前后分别测定受试者的身体成分、血液动力学参数[(心率(HR)和血压)]和心率变异性(HRV)参数[总功率(TP)、标准化低频功率(LFn)、标准化高频功率(HFn)以及LFn/HFn比值]。结果:实验前2组受试者各指标比较差异均无统计学意义(P>0.05)。与实验前比较,实验后运动组受试者脂肪质量(FM)、体脂百分比(BF%)、安静HR、收缩压(SBP)和舒张压(DBP)均下降(P<0.05或P<0.01),TP和HFn(P<0.01)升高,LFn和LFn/HFn比值降低(P<0.01);对照组受试者各指标差异无统计学意义(P>0.05)。与对照组比较,实验后运动组受试者FM、BF%、安静HR、SBP、DBP、LFn和LFn/HFn比值均明显降低(P<0.05或P<0.01),TP和HFn明显升高(P<0.01)。结论:有氧运动可有效降低肥胖青少年安静时的交感神经活性,增加迷走神经张力。

关键词: 有氧运动, 肥胖, 心率变异性, 运动处方, 青少年

Abstract:

Objective To explore the influence  of 8-week aerobic exercise in heart rate variability (HRV) in obese adolescents and to provide the evidence for form ulating special exercise prescription.Methods Forty male obese adolescents (BMI≥25 kg。m-2) were randomly divided into exercise group (n=20) and control group (n=20).The  subjects in exercise group conducted a 8-week (five times/week,50-60 min) aerobic exercise while those in control group maintained their routine lifestyle.The body composition,hemodynamic parameters including heart rate(HR)  and blood pressure and HRV parameters including total power (TP),normalized low frequency (LFn),normalized high frequency (HFn) and LFn/HFn ratio were measured before and after experiment.Results There were no significant differences of the indicators of the subjects  between two groups before experiment (P>0.05).At the end of experiment,compared before experiment,the fat mass(FM),the  percentage of body fat(BF%),the rest HR,SBP and DBP were decreased (P<0.05 or P<0.01);the  TP  and HFn were increased(P<0.01);the LFn  and LFn/HFn ratio were  reduced (P<0.01) in exercise group after experiment;but the indexes of the subjects in control group showed no significant changes (P>0.05).Compared control group,the  FM,the BF%,the rest HR,SBP,DBP,LFn  and LFn/HFn ratio were decreased  while the TP  and HFn  were increased (P<0.01)  in exercise group after experiment.Conclusion Aerobic exercise may effectively reduce the  sympathetic activity and increase the  vagal tone in the  obese adolescents.

Key words: aerobic exercise, obese, heart rate variability, exercise prescription, adolescents

中图分类号: 

  • R493