SLEEP AT ALTITUDE

  • 1 January 1977
    • journal article
    • research article
    • Vol. 48  (7) , 615-620
Abstract
The effects of hypobaric hypoxia upon the electrophysiologically assessed sleep of 4 male and 4 female subjects, 18-29 yr old, were measured during 2 successive nights at 493 torr (3500 m) in a hypobaric chamber. Five subjects experienced varied levels of acute mountain sickness (AMS). Sleep disturbance was primarily manifested as insomnia in 2 subjects experiencing higher levels of AMS. Relatively normal amounts of synchronized sleep were observed at 493 torr, implying the occurrence of sleep hypoventilation.

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