不同体位和阻力运动对健康人心血管反应的影响  

Influence of different positions and resistance exercises on cardiovascular responses in healthy adults

作　　者：王亚飞[1] 王于领[2] 梁崎[1] 张洲[1] 徐智勤[1] 

机构地区：[1]中山大学附属第一医院康复医学科,广州510080 [2]中山大学附属第六医院康复医学科,广州510080

出　　处：《中国康复》2014年第1期24-28,共5页Chinese Journal of Rehabilitation

基　　金：美国Thera-Band学院科研基金(2011);2011中山大学学生业余科研基金(2011-21)

摘　　要：目的:通过在坐位和卧位两种不同体位下,观察健康人进行不同强度抗阻运动时心血管反应及主观感受水平的变化。方法:20名观察对象随机采取坐位、卧位,轻、重两种弹性阻力下,进行每组5min,共4组的右侧伸膝抗阻运动的间歇性运动训练,静止期及每次运动前后均采集观察对象的心率、血压和心率变异性、自觉疲劳程度和焦虑水平等指标。结果:不同体位下的心率(HR)、低频与高频的比值(LF/HF)、高频功率(HFms2)、标准化低频功率(LFn.u.)和标准化高频功率(HFn.u.)差异有统计学意义(P<0.01),在体位与阻力的交互作用下这几个指标差异也有统计学差异(P<0.01),不同阻力间HR差异有统计学差异(P<0.01)。卧位下两级阻力间HR差异有统计学差异(P<0.01)。结论:实验结果提示,体位对心血管反应的影响较明显,而轻阻力负荷下,其阻力差引起的心血管反应差异不明显。各项客观指标对于训练过程中机体的变化灵敏性高于主观感受指标。Objective：To examine the changes of heart rate variability （HRV） ,blood pressure （BP） and heart rate （HR）, and subjective responses under two-grade resistive exercises at sitting and supine positions in healthy adults. Methods：Twenty participants were recruited to carry out a different position and two intermittent elastic resistive exercise training at random. HRV, systolic BP （SBP）, diastolic BP （DBP）, HR,rating perceived exertion （RPE） and anxiety level were recorded during the tasks and resting periods. Results： There was significant difference in HR, LF/HF ratio, HFms2 , LFn. u. and HFn. u. between two postures （P〈0. 01）. Moreover, significant interactions be- tween postures and graded resistive exercises of the same variables were observed （P〈0. 01）. There was statistically significant difference in HR between two grades of resistance exercises in supine （P〈0. 01）. There was significant difference in HR between two grades of resistance training in supine （P〈0. 01）. Conclusions：These results sugges ted that different postures have an influence on the cardiovascular responses. The parameters of objective measure- ments are more sensitive to assess cardiovascular changes than subjective responses.

关 键 词：体位 抗阻运动 心血管反应 心率变异性 

分 类 号：R87[医药卫生—运动医学]