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A field study of sleep and fatigue in a regular rotating 12-h shift system

机译：定期旋转12小时轮班系统中睡眠和疲劳的现场研究

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The aim of this study was to examine a regular rotating 12-h shift system (2D2N40ff) at an Australian Smelter. Sleep behavior, subjective fatigue and neurobehavioral performance were investigated over a 14-day period for 20 employees. Activity monitors, sleep/wake diaries, and 5-min psychomotor vigilance tasks were used. Sleep data showed differences between day and night shifts. While sleep prior to nightl was increased relative to day shifts, a reduced sleep length carried into the period leading to night2. Total wakefulness at the end of shift, and subjective fatigue were increased for night shifts, particularly nightl. Decrements in performance data supported these findings. Both prior wakefulness and prior sleep are important in a 12-h shift system. Employees may "sleep in" after day shifts, rather than taking extra sleep prior to night work. Thus, sleep between day and night shifts is based on recovery rather than preparation.
机译：这项研究的目的是检查澳大利亚冶炼厂的常规12小时轮班制（2D2N40ff）。在14天的时间内对20名员工的睡眠行为，主观疲劳和神经行为表现进行了调查。使用活动监视器，睡眠/唤醒日记和5分钟的精神运动警惕任务。睡眠数据显示白天和黑夜之间的差异。相对于白班，睡前睡的时间增加了，但进入夜睡的时间减少了睡眠时间。轮班结束时的完全清醒和夜班（尤其是夜莺）的主观疲劳增加。绩效数据的下降支持了这些发现。在12小时轮班系统中，既要事先保持清醒又要先入睡都是很重要的。员工在白班后可以“入睡”，而不是在上夜班前多睡一会。因此，白天和黑夜之间的睡眠是基于恢复而不是准备。

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