摘要
目的:探讨心率变异性(HRV)作为运动训练监控指标的可能性。方法:应用线性和非线性动力学方法,对12名中长跑运动员安静状态、递增负荷运动及运动后恢复阶段各12 min的HRV应用Polar RS800进行记录分析。结果:随运动强度递增,时域指标平均RR、SDNN、心率变异系数(SDNN/HR)较安静状态显著下降(P<0.05),运动结束后明显恢复,其中SDNN恢复最快。运动过程中RMSSD、PNN50显著下降,且持续到运动后(P<0.05)。运动及恢复过程中,频域指标TP持续升高,LF、HF持续下降,LF/HF比值上升,VLF、LFn.u.呈上升趋势,HFn.u.呈下降趋势。非线性分析表明,安静状态庞加莱散点图呈彗星状,而运动中和运动后变为短棒状。结论:递增负荷运动导致中长跑运动员心率瞬时波动趋向减少,交感神经和迷走神经二者之间的平衡关系失衡,HRV下降,可以把HRV作为运动训练的无创监控指标之一。
Objective：To investigate the characteristics of the heart rate variability（HRV）,we analyses the characteristic during at rest,exercise and recovery phase by linearity and non-linear dynamics methods in order to explore the possibility the HRV as monitoring index.Methods：12 male middle-distance race athletes were record 12 min HR including at rest,exercise and recovery phase through Polar RS800.Results： With increasing load exercise,the RR,SDNN,SDNN/HR of time domain declined significantly compare to at rest and they recovered obviously with postexercise;In particularly,SDNN had no significant difference compare to at rest（P〉0.05）;RMSSD,PNN50 decreased and still to remain after 12 min postexercise（P〉0.05）.Frequency domain analyzed that TP increased all the time,LF,HF declined evidently,but the ratio of LF/HF was increased;In addition,VLF,LFn.u.rised and HFn.u.descended.Nonlinear results illustrated that poincare plot was comet formation at rest,but became short rod-shape during exercise and postexercise.Conclusion：The balance relation between nervus sympatheticus and vagus nerve was broken,HRV descend,so HRV can become one of monitoring training indices as without wound.
出处
《山东体育学院学报》
CSSCI
北大核心
2010年第10期62-65,共4页
Journal of Shandong Sport University
基金
云南省科技厅应用基础研究资助项目(2008CD107)
关键词
中长跑
递增负荷
心率变异性
middle-distance race
progressive increasing load exercise
heart rate variability
