Substitutions of physical activity, sedentary behaviour and sleep: Associations with mental health in middle-aged and elderly persons

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Abstract

Background Physical activity, sedentary behaviour and sleep are potential risk factors of mental health disorders, but previous studies have not considered the dependency between these activity domains. Therefore, we examined the associations of reallocations of time among older adults' physical activity, sedentary behaviour and sleep with depressive and anxiety symptoms using compositional isotemporal substitution analyses. Methods We included 1943 participants (mean age 71 years, SD: 9; 52% women) from the population-based Rotterdam Study. Between 2011 and 2016, we collected accelerometer data (mean duration 5.8 days, SD: 0.4) on physical activity, sedentary behaviour and sleep and self-reported data on depressive symptoms and anxiety. Results A reallocation of 30 min more moderate-to-vigorous physical activity was associated with a -0.55 (95% CI -1.04 to -0.06) points lower depressive symptoms score when replacing sleep and a -0.59 (95% CI -1.06 to -0.12) points lower score when replacing sedentary behaviour, but not when replacing light physical activity (-0.70, 95% CI -1.63 to 0.24). No associations were found for anxiety. Conclusion Replacing sedentary behaviour or sleep with more moderate-to-vigorous physical activity was associated with less depressive symptoms, suggesting that mainly intensive types of physical activity are important for middle-aged and older adults in relation to depressive symptoms.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalJournal of Epidemiology and Community Health
Volume76
Issue number2
DOIs
Publication statusPublished - 1 Feb 2022

Bibliographical note

Funding Information:
Funding The Rotterdam Study is funded by Erasmus Medical Centre and Erasmus University, Rotterdam, Netherlands Organisation for the Health Research and Development (ZonMw), the Research Institute for Diseases in the Elderly (RIDE), the Ministry of Education, Culture and Science, the Ministry for Health, Welfare and Sports, the European Commission (DG XII) and the Municipality of Rotterdam.

Publisher Copyright:
© 2022 BMJ Publishing Group. All rights reserved.

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