Abstract
Risks associated with fatigue that accumulates during work shifts have historically been managed through working time arrangements that specify fixed maximum durations of work shifts and minimum durations of time off. By themselves, such arrangements are not sufficient to curb risks to performance, safety, and health caused by misalignment between work schedules and the biological regulation of waking alertness and sleep. Science-based approaches for determining shift duration and mitigating associated risks, while addressing operational needs, require: (1) a recognition of the factors contributing to fatigue and fatigue-related risks; (2) an understanding of evidence-based countermeasures that may reduce fatigue and/or fatigue-related risks; and (3) an informed approach to selecting workplace-specific strategies for managing work hours. We propose a series of guiding principles to assist stakeholders with designing a shift duration decision-making process that effectively balances the need to meet operational demands with the need to manage fatigue-related risks.
Original language | English (US) |
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Pages (from-to) | 2283-2306 |
Number of pages | 24 |
Journal | Journal of Clinical Sleep Medicine |
Volume | 17 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2021 |
Funding
The shift length task force thanks Dr Claire Caruso (National Institute for Occupational Safety and Health), Dr Michael Hodgson (Occupational Safety and Health Administration), and Emily Whitcomb (National Safety Council) for lending their expertise and providing valuable feedback during the development of this manuscript. While the Occupational Safety and Health Administration (OSHA) does not have concerns with the content of the guiding principles, OSHA does not endorse them. The shift length task force also thanks two anonymous reviewers for valuable feedback on the paper, and Ginger Ellen Espinoza of the Naval Postgraduate School for the graphic design of Figure 1.
Keywords
- alertness
- circadian rhythms
- mental fatigue
- occupational medicine
- policy making
- productivity
- shift scheduling
- sleep homeostasis
- sleepiness
- working time arrangements
ASJC Scopus subject areas
- General Medicine