Montgomery I, Trinder J, Paxton S J
Sleep. 1982;5(2):159-68. doi: 10.1093/sleep/5.2.159.
The energy conservation model proposes that the main function of sleep is to lower metabolic requirements periodically and thus to conserve energy. However, certain variations in energy expenditure, such as that produced by physical exercise, have not been found to be consistently related to sleep length. We hypothesized that, because sleep variables may adapt relatively slowly to metabolic changes, the effect of exercise on sleep time would be observed as a function of habitual exercise patterns, not of daily variations. The study consisted of a retrospective analysis of five experiments. Although the design of each experiment was idiosyncratic, all involved physically fit and/or unfit subjects whose sleep was assessed following daytime exercise and/or no exercise conditions. As predicted, fit subjects slept significantly longer than unfit subjects, and daytime exercise had no consistent effect on sleep duration. However, for several reasons, the relevance of the data to the energy conservation model is uncertain.
能量守恒模型提出，睡眠的主要功能是周期性地降低代谢需求，从而保存能量。然而，尚未发现能量消耗的某些变化，如体育锻炼所产生的变化，与睡眠时间始终相关。我们假设，由于睡眠变量可能相对缓慢地适应代谢变化，运动对睡眠时间的影响将作为习惯性运动模式的函数被观察到，而不是每日变化的函数。该研究包括对五个实验的回顾性分析。尽管每个实验的设计都很独特，但所有实验都涉及身体健康和/或不健康的受试者，他们的睡眠在白天运动和/或无运动条件后进行评估。正如预测的那样，健康受试者的睡眠时间明显长于不健康受试者，并且白天运动对睡眠时间没有一致的影响。然而，由于几个原因，这些数据与能量守恒模型的相关性尚不确定。
