Nauha, L, Jurvelin, H, Ala‐Mursula, L, et al. Chronotypes and objectively measured physical activity and sedentary time at midlife. Scand J Med Sci Sports. 2020; 30: 1930– 1938. https://doi.org/10.1111/sms.13753
Chronotypes and objectively measured physical activity and sedentary time at midlife
|Author:||Nauha, Laura1,2,3,4; Jurvelin, Heidi2,5; Ala-Mursula, Leena2;|
1Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland
2Center for Life Course Health Research, University of Oulu, Oulu, Finland
3Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
4Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation sr, Oulu, Finland
5Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 9.3 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020111089797
John Wiley & Sons,
|Publish Date:|| 2021-06-19
Morning, day, or evening chronotypes differ by the circadian timing of alertness and the preferred timing of sleep. It has been suggested that evening chronotype is associated with low physical activity (PA) and high sedentary time (SED). Our aim was to investigate whether such an association is confirmed by objectively measured PA and SED. In 46‐year follow‐up of the Northern Finland Birth Cohort 1966 study, total PA (MET min/day) and SED (min/day) among 5156 participants were determined using wrist‐worn accelerometers for 14 days. We used the shortened Morningness‐Eveningness Questionnaire to define participants’ chronotypes. As covariates, we used self‐reported physical strenuousness of work, health, and demographics, and clinical measures. We used adjusted general linear models (B coefficients with 95% confidence intervals, CI) to analyze how chronotype was related to total PA or SED. As compared to evening chronotype, men with day and morning chronotypes had higher total PA volumes (adjusted B 75.2, 95% CI [8.1, 142.4], P = .028, and 98.6, [30.2, 167.1], P = .005). Men with day and morning chronotypes had less SED (−35.8, [−53.8, −17.8], P < .0001, and − 38.6, [−56.9, −20.2], P < .0001). Among women, morning chronotype was associated with higher total PA (57.8, [10.5, 105.0], P = .017), whereas no association between chronotype and SED emerged. Evening chronotype was associated with low objectively measured PA in both sexes and with high SED in men, even after adjustments for established potential confounders. Chronotype should be considered in PA promotion.
In the abstract, a typo (missing − -sign) was corrected in the sentence : Men with day and morning chronotypes had less SED (−35.8, [−53.8, −17.8], p < 0.0001, and −38.6, [−56.9, −20.2], p < 0.0001).
Scandinavian journal of medicine & science in sports
|Pages:||1930 - 1938|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
217 Medical engineering
3142 Public health care science, environmental and occupational health
315 Sport and fitness sciences
NFBC1966 received financial support from University of Oulu [grant number 24000692], Oulu University Hospital [grant number 24301140], and ERDF European Regional Development Fund [grant number 539/2010 A31592]. The study has been financially supported by the Ministry of Education and Culture in Finland [grant numbers OKM/86/626/2014, OKM/43/626/2015, OKM/17/626/2016, OKM/54/626/2019].
© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Nauha, L, Jurvelin, H, Ala‐Mursula, L, et al. Chronotypes and objectively measured physical activity and sedentary time at midlife. Scand J Med Sci Sports. 2020; 30: 1930– 1938, which has been published in final form at https://doi.org/10.1111/sms.13753. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.