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Aviat Space Environ Med. 1986 Mar;57(3):241-9.

Performance overnight in shiftworkers operating a day-night schedule.

Abstract

Performance was measured during the day (0800-1700 hours) and during the night (1700-0800 hours) of a day-night schedule, and the effect of caffeine (300 mg) was studied during the overnight periods of work. The sleep electroencephalogram was recorded together with oral temperature and urinary electrolyte excretion. Impairment of performance within 9 h after the beginning of the daytime work period was minimal, and was limited to a test of continuous performance, but impairment of performance within 9 h after the beginning of the overnight work period was more pronounced and included lowered vigilance. Impaired performance overnight was related to time on task and circadian rhythmicity, and was alleviated to some extent by the use of caffeine.

PMID:
3964153
[Indexed for MEDLINE]

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