Delayed sleep timing is associated with low levels of free-living physical activity in normal sleeping adults
Open accessAbstract
Objective and background We and others have reported that experimentally induced short sleep does not affect resting metabolic rate and leads to increased laboratory-measured 24-h energy expenditure. Here, we aimed to determine if sleep timing and/or quality are related to physical activity (PA) levels.Methods Measures of PA via waist actigraphy, sleep diary, and sleep quality questionnaires were collected over a 7-18-day period in 22 adults (mean age ± standard deviation (SD): 35.8 ± 4.6 years, and mean body mass index ± SD: 23.8 ± 1.1 kg/m(2)) who were on their habitual sleep-wake and activity schedules.Results During the recording period, mean (±SD) bedtime and wake times were 00:17 ± 1:07 h (range: 22:02-02:07 h) and 08:20 ± 1:14 h (range: 06:30-10:11 h), respectively. After controlling for sleep duration, later bedtime, wake time, and midpoint of sleep were associated with less time spent in moderate-to-vigorous PA (p = 0.013, p = 0.005, and p = 0.007, respectively), and increased time in sedentary PA (p = 0.016, p = 0.013, and p = 0.013, respectively).Conclusions Current results suggest that even relatively small alterations in sleep timing may influence PA. However, causality cannot be inferred from this cross-sectional study. Clinical intervention studies should be conducted to assess the relationship between sleep timing and energy balance.
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Inverse associations between later bedtime, wake time, or midpoint of sleep and time spent in moderate-to-vigorous physical activity or sedentary behavior have been noted.
“Inverse associations between later bedtime, wake time, or midpoint of sleep and time spent in moderate-to-vigorous physical activity or sedentary behavior have been noted in other studies (73, 105).”
From Chronotype: Implications for Epidemiologic Studies on Chrono-Nutrition and Cardiometabolic Health (2019) · cites this paper as [105]
Later bedtime, waketime, and midpoint of sleep are associated with lower levels of physical activity.
“In terms of sleep chronotype, a small number of studies have shown later bedtime, waketime, and midpoint of sleep to be associated with lower levels of physical activity [20].”
From Smoking, screen-based sedentary behavior, and diet associated with habitual sleep duration and chronotype: data from the UK Biobank (2016) · cites this paper as [20]
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- Authors
- Shechter, A., & St-Onge, M.-P.
- Affiliations
- Columbia University (US)
- Venue
- Sleep Medicine
- Publisher
- Elsevier BV
- Published
- 2014-12
- Volume
- 15
- Issue
- 12
- Pages
- 1586-1589
- ISSN
- 1389-9457 (ISSN-L)
- PMC
- PMC4260995
- OpenAlex
- W2093623442
- Cited by
- 63
- References
- 22
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 1 · 2023: 7 · 2022: 4 · 2021: 11 · 2020: 15 · 2019: 4 · 2018: 5 · 2017: 1 · 2016: 3 · 2015: 7
- FWCI
- 5.06
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Sleep Medicine (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (UL1TR000040)
- National Heart, Lung, and Blood Institute (R01HL091352)
- National Institute of Diabetes and Digestive and Kidney Diseases (P30DK026687, T32DK007559)
- National Center for Advancing Translational Sciences
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Keywords
- sleep timing, bedtime, wake time, physical activity, moderate-to-vigorous physical activity, sedentary behavior, sleep quality, energy balance, actigraphy
- MeSH terms
- Adult, Female, Humans, Male, Middle Aged, Motor Activity, Surveys and Questionnaires, Retrospective Studies, Sleep Deprivation, Body Mass Index, Actigraphy
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