Sleep-wake differences in scaling behavior of the human heartbeat: Analysis of terrestrial and long-term space flight data
Sleep-wake differences in scaling behavior of the human heartbeat: Analysis of terrestrial and long-term space flight data
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DOI：
10.1209/epl/i1999-00525-0
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发表时间：
1999-12-01
期刊：
影响因子：
--
通讯作者：
Goldberger, AL
中科院分区：
文献类型：
--
作者：
Ivanov, PC;Bunde, A;Goldberger, AL
我们比较缩放特性的心脏动力学在睡眠和清醒期间的健康人，宇航员在轨道飞行，和严重的心脏病患者。对于所有三组，我们发现睡眠期间的心跳波动与清醒期间相比有更大程度的相关性。这三个组的标度指数的睡眠-觉醒差异与健康和患病个体之间的差异相当。所观察到的缩放差异不是简单地由不同水平的活动，但似乎与心跳的神经自主控制的内在变化。
We compare scaling properties of the cardiac dynamics during sleep and wake periods for healthy individuals, cosmonauts during orbital flight, and subjects with severe heart disease. For all three groups, we find a greater degree of anticorrelation in the heartbeat fluctuations during sleep compared to wake periods. The sleep-wake difference in the scaling exponents for the three groups is comparable to the difference between healthy and diseased individuals. The observed scaling differences are not accounted for simply by different levels of activity, but appear related to intrinsic changes in the neuroautonomic control of the heartbeat.