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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Exercise heart rate variability of older women in relation to level of physical activity.
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Exercise heart rate variability of older women in relation to level of physical activity.

机译：与体育活动水平相关的老年妇女的运动心率变异性。

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摘要

The purpose of this study was to determine the effect of the level of physical activity in older women on heart rate (HR) response to its neural control at rest and during exercise by using heart rate variability (HRV) analysis. Electrocardiogram (ECG) was recorded in 3 (low, moderately, and highly) active groups of older women at rest and during submaximal exercise. Spectral HRV indexes were obtained from the ECG signal. At rest, highly active subjects have low HR without any alteration of HRV. During incremental submaximal exercise, parasympathetic modulations of HR decreased only in the highly active subjects (p <.01) without any alteration of HR, compared with the other groups. In older women, the effects of the level of physical activity on HR and HRV are dissociated. Quite a high level of physical training induces a higher sensitivity of sinus node response to the autonomic nervous system during exercise.
机译：这项研究的目的是通过使用心率变异性（HRV）分析来确定老年妇女的体育锻炼水平对其在休息和运动期间对其神经控制的心率（HR）反应的影响。心电图（ECG）被记录在3个（低，中和高度）活跃老年妇女的静止和次最大运动量组中。从ECG信号获得频谱HRV指数。休息时，活跃的受试者的HR低，而HRV没有任何改变。与其他组相比，在渐进式亚最大运动中，仅在高度活跃的受试者中HR的副交感神经调节降低（p <.01），而HR没有任何改变。在老年妇女中，体育活动水平对HR和HRV的影响是独立的。较高水平的体育锻炼会引起运动过程中窦房结对自主神经系统反应的敏感性更高。

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