ArticleInternational archives of occupational and environmental health2010
Adaptation rate of 6-sulfatoxymelatonin and cognitive performance in offshore fleet shift workers: a field study.
Article in International archives of occupational and environmental health, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The effect of the number of consecutive night shifts on diurnal rhythms in cortisol, melatonin and heart rate variability (HRV): a systematic review of field studies.International archives of occupational and environmental health · 2016Pooled it
- Separation of circadian- and behavior-driven metabolite rhythms in humans provides a window on peripheral oscillators and metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2018Trial
- Unhealthy sleep patterns and irregular night shift work are associated with increased risk of allergic rhinitis: a large prospective cohort study.BMC public health · 2026Article
- Understanding sleep health challenges of defence shift workers to design a digital, sleep and circadian management tool.Scientific reports · 2025Article
- Identification of Predictors of Shift Work Adaptation and Its Association With Immune, Hormonal and Metabolite Biomarkers.Journal of pineal research · 2024Article
- Circadian Adaptation of Melatonin and Cortisol in Police Officers Working Rotating Shifts.Journal of biological rhythms · 2024Article
- Disturbance of the Circadian System in Shift Work and Its Health Impact.Journal of biological rhythms · 2022Review
- Poor Sleep Quality in Nurses Working or Having Worked Night Shifts: A Cross-Sectional Study.Frontiers in neuroscience · 2021Article
- Cognitive Performance During Night Work in the Cold.Frontiers in physiology · 2021Article
- Application of a Limit-Cycle Oscillator Model for Prediction of Circadian Phase in Rotating Night Shift Workers.Scientific reports · 2019Article
- Generalizability of A Neural Network Model for Circadian Phase Prediction in Real-World Conditions.Scientific reports · 2019Article
- Effects ofJournal of sport and health science · 2018Article
- Temporal dynamics of circadian phase shifting response to consecutive night shifts in healthcare workers: role of light-dark exposure.The Journal of physiology · 2018Article
- Comparison of Melatonin Profile and Alertness of Firefighters with Different Work Schedules.Journal of circadian rhythms · 2018Article
- Circadian adaptation to night shift work influences sleep, performance, mood and the autonomic modulation of the heart.PloS one · 2013Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo determine the total phase delay and adaptation rate of 6-sulfatoxymelatonin (aMT6s) on subjective and objective sleep quality and cognitive performance after 7 days of working night shifts (1800-0600 hours). The subjects studied were offshore fleet workers (N = 7).
methodsSeven days of urine samples were collected to determine the total phase delay and adaptation rate of aMT6s. Subjective and objective sleep quality was registered with sleep diaries and actigraphy on a daily basis. Cognitive performance, as measured by vigilance and reaction time, was measured with the Vienna test system on days 1 and 7. Light exposure was measured in the vessel compartments daily.
resultsThe rhythm of aMT6s shifted significantly from 4.78 +/- 0.94 h on day 1 to 8.84 +/- 1.76 h on day 7. Rate of adaptation was 0.84 h per day. Subjective sleep quality showed significant time effects on four variables, but objective sleep quality did not show any significant time effects. Vigilance and reaction time improved significantly from days 1 to 7. Light exposure intensities varied between 3 and 243 lux.
conclusionsThis field study showed that offshore fleet workers are able to adapt to the imposed regimen of 12-h night shifts. The adaptation is slower compared to other branches of the offshore industry, which most likely is due to lower light exposure. Subjective sleep quality improved to some extent, but the results were not conclusive. No significant effects were observed in the objective measures. Cognitive performance improved significantly, which was likely to be caused by the extended working hours on day 1 and an entrainment of the suprachiasmatic nuclei (SCN).
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