Extended Work Periods
- 1 January 2007
- journal article
- review article
- Published by National Institute of Industrial Health in Industrial Health
- Vol. 45 (1), 125-136
- https://doi.org/10.2486/indhealth.45.125
Abstract
A literature review of 105 studies on the effects of extended daily working hours was conducted. Potential negative effects of extended working hours are discussed: More accidents on the job; more accidents off the job; reduced duration and quality of sleep due to moonlighting; sleepiness; reduced alertness; fatigue; adverse effects on performance; prolonged toxic exposure; adverse effects on health; increased absenteeism; problems communicating with managers; and problems while driving home. Potential positive effects of extended working hours are discussed: Less travel time and costs; more time for the family, social life, and domestic duties; increased satisfaction with working hours; fewer handovers; and less overtime. No firm conclusions can be drawn because of the partly contradictory results and the methodological problems of many studies. However, caution is advised when considering the introduction of extended work shifts, particularly where public safety is at stake. A checklist is provided (concerning work load, breaks, staffing level, systematic assessments of health and safety factors) to support decisions for or against the use of extended work shifts.Keywords
This publication has 21 references indexed in Scilit:
- Shiftwork: Safety, Sleepiness and SleepIndustrial Health, 2005
- Self-Reported Health and Sleep Complaints Among Nursing Personnel Working Under 12 h Night and Day ShiftsChronobiology International, 2004
- Distinguishing between excessive daytime sleepiness and fatigueJournal of Psychosomatic Research, 2002
- The Three-Process Model of Alertness and Its Extension to Performance, Sleep Latency, and Sleep LengthChronobiology International, 1997
- Work and rest in the long-distance road transport industry in AustraliaWork & Stress, 1995
- Performance and alertness on 8 h and 12 h rotating shifts at a natural gas utilityErgonomics, 1993
- Industrial Accident Experience of One Company on 8- and 12-Hour Shift SystemsJournal of Occupational and Environmental Medicine, 1991
- Performance, alertness, and sleep after 3·5 years of 12 h shifts: A follow-up studyWork & Stress, 1991
- A retrospective cohort study comparing complaints and diseases in day and shift workersInternationales Archiv für Arbeitsmedizin, 1980
- The Twelve-Hour Shift in the Petroleum and Chemical IndustriesILR Review, 1979