Examining courses of sleep quality and sleepiness in full 2 weeks on/2 weeks off offshore day shift rotations
Open accessAbstract
To better understand sleep quality and sleepiness problems offshore, we examined courses of sleep quality and sleepiness in full 2-weeks on/2-weeks off offshore day shift rotations by comparing pre-offshore (1 week), offshore (2 weeks) and post-offshore (1 week) work periods. A longitudinal observational study was conducted among N=42 offshore workers. Sleep quality was measured subjectively with two daily questions and objectively with actigraphy, measuring: time in bed (TIB), total sleep time (TST), sleep latency (SL) and sleep efficiency percentage (SE%). Sleepiness was measured twice a day (morning and evening) with the Karolinska Sleepiness Scale. Changes in sleep and sleepiness parameters during the pre/post and offshore work periods were investigated using (generalized) linear mixed models. In the pre-offshore work period, courses of SE% significantly decreased (p=.038). During offshore work periods, the courses of evening sleepiness scores significantly increased (p<.001) and significantly decreased during post-offshore work periods (p=.004). During offshore work periods, TIB (p<.001) and TST (p<.001) were significantly shorter, SE% was significantly higher (p=.002), perceived sleep quality was significantly lower (p<.001) and level of rest after wake was significantly worse (p<.001) than during the pre- and post-offshore work periods. Morning sleepiness was significantly higher during offshore work periods (p=.015) and evening sleepiness was significantly higher in the post-offshore work period (p=.005) compared to the other periods. No significant changes in SL were observed. Courses of sleep quality and sleepiness parameters significantly changed during full 2-weeks on/2-weeks off offshore day shift rotation periods. These changes should be considered in offshore fatigue risk management programmes.
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Disturbed circadian rhythms negatively influence alertness and task performance.
“and negatively influence alertness and task performance (Riethmeister, Bültmann, De Boer, Gordijn, &Brouwer, 2018).”
From The Analysis of Occurrences Associated with Air Traffic Volume and Air Traffic Controllers’ Alertness for Fatigue Risk Management (2021) · cites this paper as Riethmeister, Bültmann, De Boer, Gordijn, & Brouwer, 2018
Cites
The consensus sleep diary: standardizing prospective sleep self-monitoring
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“An electronic version of the consensus sleep diary (CSD) was used to assess TIB, TST, SE% and SL subjectively (Carney et al. 2012).”
MethodTwisk, J., de Boer, M., de Vente, W., & Heymans, M. (2013) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2013.03.017 · Cited by 568 · cited 1× · see citing works
“Under this assumption, mixed models provide valid estimates, without data imputation (Twisk et al. 2013).”
MethodZavada, A., Gordijn, M. C. M., Beersma, D. G. M., Daan, S., & Roenneberg, T. (2005) · Chronobiology International · doi:10.1081/cbi-200053536 · Cited by 527 · see citing works
Fatigue on the flight deck: The consequences of sleep loss and the benefits of napping
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“Moreover, managed worksite napping and/or caffeine intake strategies might balance out the experienced evening sleepiness dip and the accumulated sleep debts during offshore work periods (Hartzler 2014; Horne et al. 2008).”
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Li, W., Kearney, P., Zhang, J., Hsu, Y., & Braithwaite, G. (2021) · Risk Analysis · doi:10.1111/risa.13594 · Cited by 34 · see citing works
- Authors
- Riethmeister, V., Bültmann, U., De Boer, M. R., Gordijn, M., & Brouwer, S.
- Affiliations
- University Medical Center Groningen (NL)
- Department of Health Sciences and the EMGO+ Institute for Health and Care Research, Faculty of Earth and Life Sciences, VU University Amsterdam, Amsterdam, The Netherlands
- University of Groningen (NL)
- Corresponding author
- Riethmeister, V.
- Venue
- Chronobiology International
- Publisher
- Informa UK Limited
- Published
- 2018-05-16
- Volume
- 35
- Issue
- 6
- Pages
- 759-772
- ISSN
- 0742-0528 (ISSN-L)
- 1525-6073
- OpenAlex
- W2803350052
- Cited by
- 19
- References
- 4
- Citations by year
- 2026: 4 · 2025: 1 · 2023: 2 · 2022: 1 · 2021: 7 · 2020: 2 · 2019: 1 · 2018: 1
- FWCI
- 3.40
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by-nc-nd
- Locations
- Chronobiology International (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- VU Research Portal (publishedVersion, other-oa)
- Figshare (submittedVersion, cc-by)
- University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by-nc-nd)
- Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
- Figshare (cc-by)
- Funders
- National Sleep Foundation
- Universitair Medisch Centrum Groningen
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Keywords
- offshore workers, sleep quality, sleepiness, shift work, fatigue risk management, sleep efficiency, total sleep time, time in bed, sleep latency, Karolinska Sleepiness Scale, actigraphy
- MeSH terms
- Sleepiness, Adult, Circadian Rhythm, Female, Humans, Longitudinal Studies, Male, Sleep, Time Factors, Wakefulness, Work Schedule Tolerance, Sleep Disorders, Circadian Rhythm
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