کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4978769 | 1367780 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sleep and performance in simulated Navy watch schedules
ترجمه فارسی عنوان
خواب و عملکرد در برنامه شبیه سازی نیروی دریایی دیده بان
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کلمات کلیدی
ریتم شبانه روزی، خستگی، کار تغییر، هوموستاز خواب محدودیت خواب، منطقه نگهداری ویک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
To operate Navy ships 24Â h per day, watchstanding is needed around the clock, with watch periods reflecting a variety of rotating or fixed shift schedules. The 5/15 watch schedule cycles through watch periods with 5Â h on, 15Â h off watch, such that watches occur 4Â h earlier on the clock each day - that is, the watches rotate backward. The timing of sleep varies over 4-day cycles, and sleep is split on some days to accommodate nighttime watchstanding. The 3/9 watch schedule cycles through watch periods with 3Â h on, 9Â h off watch, allowing for consistent sleep timing over days. In some sections of the 3/9 watch schedule, sleep may need to be split to accommodate nighttime watchstanding. In both the 5/15 and 3/9 watch schedules, four watch sections alternate to cover the 24Â h of the day. Here we compared sleep duration, psychomotor vigilance and subjective sleepiness in simulated sections of the 5/15 and 3/9 watch schedules. Fifteen healthy male subjects spent 6 consecutive days (5 nights) in the laboratory. Sleep opportunities were restricted to an average of 6.5Â h daily. Actigraphically estimated sleep duration was 5.6Â h per watch day on average, with no significant difference between watch sections. Sleep duration was not reduced when sleep opportunities were split. Psychomotor vigilance degraded over watch days, and tended to be more variable in the 5/15 than in the 3/9 watch sections. These laboratory-based findings suggest that Navy watch schedules are associated with cumulative sleep loss and a build-up of fatigue across days. The fixed watch periods of the 3/9 watch schedule appear to yield more stable performance than the backward rotating watch periods of the 5/15 watch schedule. Optimal performance may require longer and more consistent daily opportunities for sleep than are typically obtained in Navy operations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Accident Analysis & Prevention - Volume 99, Part B, February 2017, Pages 422-427
Journal: Accident Analysis & Prevention - Volume 99, Part B, February 2017, Pages 422-427
نویسندگان
Elena Skornyakov, Nita L. Shattuck, Michael A. Winser, Panagiotis Matsangas, Amy R. Sparrow, Matthew E. Layton, Rylie J. Gabehart, Hans P.A. Van Dongen,