Change search
ReferencesLink to record
Permanent link

Direct link
Modelling fatigue and the use of fatigue models in work settings
Stockholm University, Faculty of Social Sciences, Stress Research Institute.
Show others and affiliations
2011 (English)In: Accident Analysis and Prevention, ISSN 0001-4575, E-ISSN 1879-2057, Vol. 43, no 2, 549-564 p.Article in journal (Refereed) Published
Abstract [en]

In recent years, theoretical models of the sleep and circadian system developed in laboratory settings have been adapted to predict fatigue and, by inference, performance. This is typically done using the timing of prior sleep and waking or working hours as the primary input and the time course of the predicted variables as the primary output. The aim of these models is to provide employers, unions and regulators with quantitative information on the likely average level of fatigue, or risk, associated with a given pattern of work and sleep with the goal of better managing the risk of fatigue-related errors and accidents/incidents. The first part of this review summarises the variables known to influence workplace fatigue and draws attention to the considerable variability attributable to individual and task variables not included in current models. The second part reviews the current fatigue models described in the scientific and technical literature and classifies them according to whether they predict fatigue directly by using the timing of prior sleep and wake (one-step models) or indirectly by using work schedules to infer an average sleep-wake pattern that is then used to predict fatigue (two-step models). The third part of the review looks at the current use of fatigue models in field settings by organizations and regulators. Given their limitations it is suggested that the current generation of models may be appropriate for use as one element in a fatigue risk management system. The final section of the review looks at the future of these models and recommends a standardised approach for their use as an element of the 'defenses-in-depth' approach to fatigue risk management.

Place, publisher, year, edition, pages
2011. Vol. 43, no 2, 549-564 p.
Keyword [en]
Fatigue, Bio-mathematical models, Sleep-wake cycle, Circadian rhythms, Shift work, Occupational health and safety, Safety management systems, Risk management
National Category
Medical and Health Sciences
URN: urn:nbn:se:su:diva-50843DOI: 10.1016/j.aap.2009.12.030ISI: 000287617200005PubMedID: 21130216Local ID: P2930OAI: diva2:382883
Available from: 2011-01-03 Created: 2011-01-03 Last updated: 2012-01-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Åkerstedt, Torbjörn
By organisation
Stress Research Institute
In the same journal
Accident Analysis and Prevention
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 78 hits
ReferencesLink to record
Permanent link

Direct link