Operation Everest II: An indication of d
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Yoshiharu Yamamoto; Richard L. Hughson; John R. Sutton; Charles S. Houston; Alle
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Article
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1993
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Springer-Verlag
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English
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It has been shown that fluctuation of human heartbeat intervals (heart rate variability, HRV) reflects variations in autonomic nervous system activity. We studied HRV at simulated altitudes of over 6000 m from Holter electrocardiograms recorded during the Operation Everest II study (Houston et al. 1