EFFECT OF SLEEP AND CIRCADIAN CYCLE ON SLEEP PERIOD ENERGY-EXPENDITURE
EFFECT OF SLEEP AND CIRCADIAN CYCLE ON SLEEP PERIOD ENERGY-EXPENDITURE
复制标题
DOI：
10.1152/jappl.1989.66.2.830
复制
发表时间：
1989-02-01
影响因子：
3.3
通讯作者：
MONTGOMERY, I
中科院分区：
文献类型：
--
作者：
FRASER, G;TRINDER, J;MONTGOMERY, I
Energy expernditure is lower during sleep than relaxed wakefulness. However, ther is disagreement as to the particular metabolic changes that produce the difference. The present study assessed the contribution of sleep, circadian cycle, and the specific dynamic action effect of the evening meal to the sleep period fallin metabolic rate. five subjects were tested for a total of nine nights under three conditions in a repeated-measures design. Subjects were confined to bed throughout their usual sleep period but were instructed to go to sleep 0,3, or 6 ha fter their usual time for lights out. O2 consumption was measured in all conditions for the 0.5 h before and after each of the times for lights out and then throughout the sleep period afterlights out. The results demonstrated that changes in energy expernditure during the sleep peeiod are a function of both sleep and circadian cycle. In this study, the contribution of the two components was approximately equal. However, the effect of sleep was rapid asymptoting within 15 min of sleep onset, whereas that of circadian cycle was constant over the assessment period.
