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首页> 外文期刊>Journal of Behavioral and Brain Science >Heart Rate Variability, Standard of Measurement, Physiological Interpretation and Clinical Use in Mountain Marathon Runners during Sleep and after Acclimatization at 3480 m
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Heart Rate Variability, Standard of Measurement, Physiological Interpretation and Clinical Use in Mountain Marathon Runners during Sleep and after Acclimatization at 3480 m

机译：3480 m山区马拉松运动员睡眠时和适应后的心率变异性，测量标准，生理解释和临床用途

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摘要

Fluctuations in autonomic cardiovascular regulation during exposure to high altitude may increase the risk of heart attack during waking and sleep. This study compared heart rate variability (HVR) and its components during sleep at low altitude and after 30 - 41 hours of acclimatization at high altitude (3480 m) in five mountain marathon runners controlled for diet, drugs, light-dark cycle and jet lag. In comparison to sea level, RR-intervals during sleep at high altitude decreased significantly (P 0.001). The significant increase in sympathetic autonomic cardiovascular modulation at high altitude protects against excessive oxygen deprivation during sleep. Increases in R-R intervals can require longer periods of acclimatization at3480 m to mitigate the effects of altitude/hypoxia on sympathetic tone, thus reducing cardiovascular distress at rest during waking and sleep and probably before during and after athletic performance at altitude.
机译：暴露于高海拔地区时，自主心血管调节的波动可能会增加清醒和睡眠时心脏病发作的风险。这项研究比较了五名在饮食，药物，明暗周期和时差反应受到控制的高山马拉松运动员中，低海拔睡眠期间以及高海拔（3480 m）适应30-41小时后心率变异性（HVR）及其组成。与海平面相比，高海拔睡眠期间的RR间隔显着降低（P 0.001）。高海拔地区交感神经自主性心血管调节的显着增加可防止睡眠期间过度缺氧。 R-R间隔的增加可能需要更长的3480 m的适应时间，以减轻海拔/低氧对交感神经的影响，从而减少醒来和睡眠时静息以及可能在高原运动前后的心血管疾病困扰。

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