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Are reallocations between sedentary behaviour and physical activity associated with better sleep in adults aged 55+ years? An isotemporal substitution analysis

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journal contribution
posted on 16.06.2021, 15:46 by Julie Vanderlinden, Greg Biddle, Filip Boen, Jannique van Uffelen
Physical activity has been proposed as an effective alternative treatment option for the increasing occurrence of sleep problems in older adults. Although higher physical activity levels are associated with better sleep, the association between specific physical activity intensities and sedentary behaviour (SB) with sleep remains unclear. This study examines the associations of statistically modelled time reallocations between sedentary time and different physical activity intensities with sleep outcomes using isotemporal substitution analysis. Device-measured physical activity data and both objective and subjective sleep data were collected from 439 adults aged 55+ years. Replacing 30 min of SB with moderate to vigorous intensity physical activity (MVPA) was significantly associated with an increased number of awakenings. Moreover, a reallocation of 30 min between light physical activity (LPA) and MVPA was significantly associated with increased sleep efficiency. Furthermore, reallocating 30 min of SB to LPA showed a significant association with decreased sleep efficiency. There were no significant associations of time reallocations for wake time after sleep onset, length of awakenings, and sleep quality. These results improve our understanding of the interrelationships between different intensities of movement behaviours and several aspects of sleep in older adults.

History

School

  • Sport, Exercise and Health Sciences

Published in

International Journal of Environmental Research and Public Health

Volume

17

Issue

24

Publisher

MDPI AG

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

18/12/2020

Publication date

2020-12-21

Copyright date

2020

eISSN

1660-4601

Language

en

Depositor

Deposit date: 16 June 2021

Article number

9579