Sedentary behaviour, physical activity and mental health in older adults: an isotemporal substitution model

Tully, M. A. et al. (2020) Sedentary behaviour, physical activity and mental health in older adults: an isotemporal substitution model. Scandinavian Journal of Medicine and Science in Sports, 30(10), pp. 1957-1965. (doi: 10.1111/sms.13762) (PMID:32643826)

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Abstract

Introduction: Regular moderate‐to‐vigorous physical activity (MVPA) is associated with improved mental health, but the evidence for the effect of reducing sedentary behavior (SB) or increasing light PA (LPA) in older adults is lacking. Using isotemporal substitution (IS) models, the aim of this paper was to investigate the effect of substituting SB with LPA or MVPA on associations with mental health in older adults. Methods: Data from 1360 older adults (mean age 75.18 years) in four countries were utilized. PA and SB was measured using ActiGraph wGT3X‐BT + accelerometers worn for 7 days. Self‐rated mental health was measured using the Hospital and Anxiety Depression Scale (HADS). IS models estimated cross‐sectional associations when 30 minutes of one behavior was substituted with another. Models were adjusted for age, sex, marital status, and educational attainment. Results: Substituting 30 minutes of SB with LPA (β −.37; 95% CI −0.42, −0.32) or MVPA (β −.14; 95% CI −0.21, −0.07) and substituting LPA with MVPA (β −.11; 95% CI −0.18, −0.04) were associated with improvements in anxiety. However, substituting 30 minutes of SB with LPA (β .55; 95% CI 0.49, 0.62) was associated with increased depression. Conclusion: Replacing 30 minutes of SB with LPA or MVPA was associated with improved anxiety symptoms in older adults. Greater benefits were observed when shifting SB and LPA to MVPA.

Item Type:Articles
Additional Information:Funding Information: European Commission. Grant Number: 634270
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Deidda, Dr Manuela
Authors: Tully, M. A., McMullan, I., Blackburn, N. E., Wilson, J. J., Bunting, B., Smith, L., Kee, F., Deidda, M., Giné-Garriga, M., Coll-Planas, L., Dallmeier, D., Denkinger, M., Rothenbacher, D., and Caserotti, P.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Health Economics and Health Technology Assessment
Journal Name:Scandinavian Journal of Medicine and Science in Sports
Publisher:Wiley
ISSN:0905-7188
ISSN (Online):1600-0838
Published Online:09 July 2020
Copyright Holders:Copyright © 2020 The Authors
First Published:First published in Scandinavian Journal of Medicine and Science in Sports 30(10):1957-1965
Publisher Policy:Reproduced under a Creative Commons license

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