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Extended workshifts and excessive fatigue.

Authors
Rosa-RR
Source
J Sleep Res 1995 Dec; 4(Suppl 2):51-56
NIOSHTIC No.
20034888
Abstract
Studies of overtime have pointed to fatigue as a potential factor producing, for example, a three-fold increase in accident rate after 16 h of work, increases in back injuries, hospital outbreaks of bacterial infection, or nuclear-power plant safety compromises. Fatigue has been measured more directly in studies of scheduled long workshifts, where performance decrements in both work-related tasks and laboratory-type behavioural tests have been observed, and significant loss of sleep and increases in subjective sleepiness have been reported. Analyses of accidents or injuries during scheduled extended workshifts, however, have produced equivocal results. Factors which could compound the fatiguing effects of extended workshifts, such as workload, noise, chemical exposure, or duties and responsibilities outside of the workplace, rarely have been studied systematically. It is concluded that extended workshift schedules should be instituted cautiously and evaluated carefully, with appropriate attention given to staffing levels, workload, job rotation, environmental exposures, emergency contingencies, rest breaks, commuting time, and social or domestic responsibilities.
Keywords
Shift-work; Sleep-deprivation; Physiological-effects; Physiological-factors; Physiological-fatigue; Physiological-measurements; Physiological-response; Work-environment; Workplace-studies; Noise-sources; Chemical-hypersensitivity; Ear-examinations; Environmental-exposure; Environmental-hazards; Author Keywords: Accidents; Long work hours; Overtime; Performance decrements; Sleep loss; Work scheduling
Contact
Roger R. Rosa, CDC, NIOSH, Division of Biomedical and Behavioral Science, Taft Laboratories, 4676 Columbia Parkway, Mail Stop C-24, Cincinnati, OH 45224
CODEN
JSRSEU
Publication Date
19981201
Document Type
Journal Article
Fiscal Year
1999
NTIS Accession No.
NTIS Price
ISSN
0962-1105
NIOSH Division
DBBS
Source Name
Journal of Sleep Research
State
OH
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