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Association between sleep and fatigue in nurses who are engaged in 16 h night shifts in Japan: Assessment using actigraphy
Link between sleep and tiredness in Japanese nurses working 16-hour night shifts measured by activity tracking
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Abstract
About 90% of nurses napped during or after their night shifts, but only 50.8% napped for more than 2 hours.
- The main night-time sleep for half of the participants started after 00:00 hours.
- Younger nurses in their 20s had significantly delayed sleep start and end times compared to those in their 40s.
- Nurses in the high-fatigue group tended to sleep later than those with lower fatigue levels.
- Napping for more than 2 hours during a night shift was linked to a lower rate of cumulative fatigue symptoms.
- Combining morning naps after a night shift with early night-time sleep initiation may reduce fatigue symptoms.
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