Rosa R R, Bonnet M H
National Institute for Occupational Safety and Health, Division of Biomedical and Behavioral Science, Cincinnati, OH 45226.
Ergonomics. 1993 Oct;36(10):1177-93. doi: 10.1080/00140139308967987.
An 8 h/5-7 day shift schedule was compared with a newly instituted 12 h/2-4 day schedule in this, our second worksite study of extended workshifts. Workers completed a performance/alertness test battery, and a questionnaire on sleep patterns and other personal habits, 2-4 times a week on all shifts. After 10 months adaptation to the 12 h shift schedule, there were decrements in performance/alertness attributable to the extra 4 h on the extended shift. There were also reductions in sleep across the workweek which were most apparent on 12 h night shifts. The results are consistent with our first worksite study of 12 h shifts and indicate extra caution should be exercised when scheduling critical activities for extended workshifts, especially extended night shifts.
在我们第二项关于延长工作班次的工作场所研究中，将8小时/5至7天的轮班制与新实行的12小时/2至4天的轮班制进行了比较。所有班次的工人每周2至4次完成一套工作表现/警觉性测试，以及一份关于睡眠模式和其他个人习惯的问卷。在适应12小时轮班制10个月后，延长班次额外的4小时导致工作表现/警觉性下降。整个工作周的睡眠时间也减少了，这在12小时夜班中最为明显。这些结果与我们第一项关于12小时轮班的工作场所研究一致，表明在为延长工作班次（尤其是延长夜班）安排关键活动时应格外谨慎。
