Driver H S, Meintjes A F, Rogers G G, Shapiro C M
Department of Physiology, University of the Witwatersrand Medical School, Johannesburg.
Acta Physiol Scand Suppl. 1988;574:8-13.
We studied the sleep patterns of nine young women when sedentary (untrained) and following a 12 week physical fitness training programme. A comparison of baseline sleep patterns and of sleep patterns following one hour of submaximal exercise performed in the evening was carried out at 0 and 12 weeks. The submaximal exercise task was for each subject to cycle for one hour at 70% of her maximal oxygen consumption (VO2 max) as measured when untrained and on completion of the training programme respectively. Changes in fitness were assessed by changes in VO2 max and anaerobic threshold (AT). On the day leading to the all night baseline sleep recordings the subjects carried out their normal daily routines and did no specific exercise. Lean body mass (LBM) was calculated from total body potassium measurements before and after training. A significant improvement in cardiorespiratory fitness did not result in any changes in baseline sleep parameters. The response to the submaximal exercise was an increase in stage 2 NREM sleep and a decrease in slow-wave sleep (SWS, stages 3 & 4) which is possibly indicative of a stress effect. However, in the trained compared to the untrained state, SWS was significantly higher after an exercise load.
我们研究了九名年轻女性在久坐不动（未训练）状态下以及在进行为期12周的体能训练计划后的睡眠模式。在第0周和第12周时，对她们的基线睡眠模式以及在晚上进行一小时次最大运动后的睡眠模式进行了比较。次最大运动任务是让每位受试者分别以其在未训练时和训练计划完成后测得的最大耗氧量（VO2 max）的70%进行一小时的骑行。通过VO2 max和无氧阈值（AT）的变化来评估体能的变化。在进行整夜基线睡眠记录的前一天，受试者进行正常的日常活动，不进行特定运动。通过训练前后的全身钾测量来计算瘦体重（LBM）。心肺功能的显著改善并未导致基线睡眠参数的任何变化。对次最大运动的反应是2期非快速眼动睡眠增加，慢波睡眠（SWS，3期和4期）减少，这可能表明存在应激效应。然而，与未训练状态相比，在训练状态下，运动负荷后慢波睡眠明显更高。
