Sleep-wake differences in scaling behavior of the human heartbeat: analysis of terrestrial and long-term space flight data.

Abstract

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… (More)
DOI: 10.1209/epl/i1999-00525-0

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Cite this paper

@article{PCh1999SleepwakeDI, title={Sleep-wake differences in scaling behavior of the human heartbeat: analysis of terrestrial and long-term space flight data.}, author={Ivanov PCh and Armin Bunde and Lu{\'i}s A. Amaral and Shlomo Havlin and J M Fritsch-Yelle and R. M. Baevsky and H. E. Stanley and A. L. Goldberger}, journal={Europhysics letters}, year={1999}, volume={48 5}, pages={594-600} }