Citation

Rosa RR, Bonnet MH. Ergonomics 1993; 36(10): 1177-1193.

Affiliation

National Institute for Occupational Safety and Health, Division of Biomedical and Behavioral Science, Cincinnati, OH 45226.

Copyright

(Copyright © 1993, Informa - Taylor and Francis Group)

DOI

unavailable

PMID

8223409

Abstract

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.

Language: en