Takahashi M, Arito H, Fukuda H
National Institute of Industrial Health, Kawasaki, Japan.
Psychiatry Clin Neurosci. 1999 Apr;53(2):223-5. doi: 10.1046/j.1440-1819.1999.00545.x.
This study aimed at examining the effects on the subjective symptoms in nurses of both timing and length of a 2-h nap during a 16-h night shift. Compared to pre-nap levels, sleepiness, fatigue, and dullness increased immediately after napping. Afterwards, sleepiness decreased significantly, and the other symptoms returned to the pre-nap values. The nurses' subjective symptoms after napping were not associated with the timing of the nap and post-nap fatigue lasted longer as the nap time increased (> 1.5 h). These results suggest that for effective napping during long night shifts, the nap length should be determined carefully to avoid persistent sleep inertia.
本研究旨在探讨在16小时夜班期间，2小时午睡的时间和时长对护士主观症状的影响。与午睡前提水平相比，午睡后嗜睡、疲劳和迟钝立即增加。之后，嗜睡显著下降，其他症状恢复到午睡前提水平。护士午睡后的主观症状与午睡时间无关，且随着午睡时间增加（>1.5小时），午睡后疲劳持续时间更长。这些结果表明，为了在长时间夜班期间进行有效的午睡，应仔细确定午睡时长，以避免持续的睡眠惯性。
