The DOI matches its Crossref record; 111 of the 111 references it cites were found in a registry or an index.
Circadian Adaptation to Night Shift Work Influences Sleep, Performance, Mood and the Autonomic Modulation of the Heart
Open accessAbstract
Our aim was to investigate how circadian adaptation to night shift work affects psychomotor performance, sleep, subjective alertness and mood, melatonin levels, and heart rate variability (HRV). Fifteen healthy police officers on patrol working rotating shifts participated to a bright light intervention study with 2 participants studied under two conditions. The participants entered the laboratory for 48 h before and after a series of 7 consecutive night shifts in the field. The nighttime and daytime sleep periods were scheduled during the first and second laboratory visit, respectively. The subjects were considered "adapted" to night shifts if their peak salivary melatonin occurred during their daytime sleep period during the second visit. The sleep duration and quality were comparable between laboratory visits in the adapted group, whereas they were reduced during visit 2 in the non-adapted group. Reaction speed was higher at the end of the waking period during the second laboratory visit in the adapted compared to the non-adapted group. Sleep onset latency (SOL) and subjective mood levels were significantly reduced and the LF∶HF ratio during daytime sleep was significantly increased in the non-adapted group compared to the adapted group. Circadian adaptation to night shift work led to better performance, alertness and mood levels, longer daytime sleep, and lower sympathetic dominance during daytime sleep. These results suggest that the degree of circadian adaptation to night shift work is associated to different health indices. Longitudinal studies are required to investigate long-term clinical implications of circadian misalignment to atypical work schedules.
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“Sympathovagal balance is then disrupted [72], as indicated by changes in heart rate variability that are believed to reflect increased risk of cardiovascular disease (CVD) [73].”
From Shift Work: Disrupted Circadian Rhythms and Sleep—Implications for Health and Well-being (2017) · cites this paper as [73]
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“Boudreau and colleagues found that circadian adaptation to night work resulted in improved sleep, improved performance, and improved heart rate variability (Boudreau et al., 2013).”
From Addressing sleep disturbances: an opportunity to prevent cardiometabolic disease? (2014) · cites this paper as Boudreau et al., 2013
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“Similarly, Boudreau, Dumont, and Boivin (2013) documented partial adaptation among police officers, with 41% showing measurable delays in melatonin rhythms after seven consecutive night shifts.”
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Lu, L., Levy, J. L., Anthony, T. G., & Androulakis, I. P. (2026) · Physiological Genomics · doi:10.1152/physiolgenomics.00152.2026
Metadata
- Authors
- Boudreau, P., Dumont, G. A., & Boivin, D. B.
- Affiliations
- Douglas Mental Health University Institute (CA)
- University of British Columbia (CA)
- Corresponding author
- Boivin, Diane B.
- Venue
- PLoS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2013-07-26
- Volume
- 8
- Issue
- 7
- Pages
- e70813
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC3724779
- OpenAlex
- W2094064988
- Cited by
- 128
- References
- 111
- Citations by year
- 2026: 5 · 2025: 10 · 2024: 9 · 2023: 12 · 2022: 13 · 2021: 13 · 2020: 8 · 2019: 17 · 2018: 15 · 2017: 6 · 2016: 9 · 2015: 6 · 2014: 5
- FWCI
- 9.01
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- PLoS ONE (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Figshare (submittedVersion, cc-by)
- PhareSST (submittedVersion)
- Funders
- Servier
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Keywords
- circadian adaptation, night shift work, rotating shifts, melatonin, heart rate variability, sleep quality, sleep latency, psychomotor performance, subjective alertness, mood, sympathetic dominance, circadian misalignment, police officers
- MeSH terms
- Adaptation, Physiological, Adult, Affect, Circadian Rhythm, Darkness, Female, Heart Rate, Humans, Male, Melatonin, Psychomotor Performance, Sleep, Wakefulness, Work Schedule Tolerance
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