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Subjective and Objective Measures of Adaptation and Readaptation to Night Work on an Oil Rig in the North Sea
How workers adjust and readjust to night shifts on a North Sea oil rig, measured by personal reports and objective data
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Abstract
Seventeen workers reported significantly longer sleep length during night shifts compared to day shifts.
- Both subjective and objective measures of sleepiness improved gradually during night work.
- Returning to day work after a week of night shifts resulted in increased subjective sleepiness and poorer sleep parameters.
- During the day shift, both sleepiness and sleep quality showed gradual improvement, similar to the trends observed during night work.
- Workers rated the day shift as worse than the night shift on several measures.
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