THERMOREGULATION, METABOLISM, AND STAGES OF SLEEP IN COLD-EXPOSED MEN
THERMOREGULATION, METABOLISM, AND STAGES OF SLEEP IN COLD-EXPOSED MEN
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DOI：
10.1152/jappl.1986.61.3.940
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发表时间：
1986-09-01
影响因子：
3.3
通讯作者：
BERGER, RJ
中科院分区：
文献类型：
--
作者：
PALCA, JW;WALKER, JM;BERGER, RJ
Four naked men, selected for their ability to sleep in the cold, were exposed to an ambient temperature (Ta) of 21.degree. C for five consecutive nights. Electrophysiological stages of sleep, O2 consumption (.ovrhdot.VO2), and skin (Tsk), rectal (Tre), and tympanic (Tty) temperatures were recorded. Compared with five nights at a thermoneutral Ta of 29.degree. C, cold induced increased wakefulness and decreased stage 2 sleep, without significantly affecting other stages, Tre and Tty declined during each condition. The decrease in Tre was greater at 21.degree. C than at 29.degree. C, whereas Tty did not differ significantly between conditions. Increases in Tty following REM sleep onset at 21.degree. C were negatively correlated with absolute Tty. .ovrhdot.VO2 and forehead Tsk also increased during REM sleep at both Tas, whereas Tsk of the limb extremities declined at 21.degree. C. Unsupressed REM sleep in association with peripheral vasoconstriction and increased Tty and .ovrhdot.VO2 in cold-exposed humans, do not signify an inhibition of thermoregulation during this sleep stage as has been observed in other mammals.
