Jefferis, BJ; Parsons, TJ; Sartini, C; Ash, S; Lennon, LT; Papacosta, O; Morris, RW; Wannamethee, SG; Lee, I-M; Whincup, PH
(2019)
Objectively measured physical activity, sedentary behaviour and all-cause mortality in older men: does volume of activity matter more than pattern of accumulation?
Br J Sports Med, 53 (16).
pp. 1013-1020.
ISSN 1473-0480
https://doi.org/10.1136/bjsports-2017-098733
SGUL Authors: Whincup, Peter Hynes
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Abstract
OBJECTIVES: To understand how device-measured sedentary behaviour and physical activity are related to all-cause mortality in older men, an age group with high levels of inactivity and sedentary behaviour. METHODS: Prospective population-based cohort study of men recruited from 24 UK General Practices in 1978-1980. In 2010-2012, 3137 surviving men were invited to a follow-up, 1655 (aged 71-92 years) agreed. Nurses measured height and weight, men completed health and demographic questionnaires and wore an ActiGraph GT3x accelerometer. All-cause mortality was collected through National Health Service central registers up to 1 June 2016. RESULTS: After median 5.0 years' follow-up, 194 deaths occurred in 1181 men without pre-existing cardiovascular disease. For each additional 30 min in sedentary behaviour, or light physical activity (LIPA), or 10 min in moderate to vigorous physical activity (MVPA), HRs for mortality were 1.17 (95% CI 1.10 to 1.25), 0.83 (95% CI 0.77 to 0.90) and 0.90 (95% CI 0.84 to 0.96), respectively. Adjustments for confounders did not meaningfully change estimates. Only LIPA remained significant on mutual adjustment for all intensities. The HR for accumulating 150 min MVPA/week in sporadic minutes (achieved by 66% of men) was 0.59 (95% CI 0.43 to 0.81) and 0.58 (95% CI 0.33 to 1.00) for accumulating 150 min MVPA/week in bouts lasting ≥10 min (achieved by 16% of men). Sedentary breaks were not associated with mortality. CONCLUSIONS: In older men, all activities (of light intensity upwards) were beneficial and accumulation of activity in bouts ≥10 min did not appear important beyond total volume of activity. Findings can inform physical activity guidelines for older adults.
Item Type: | Article | ||||||||||||
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Additional Information: | This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/ © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted. | ||||||||||||
Keywords: | accelerometer, bouts., mortality, physical activity, sedentary behaviour, Sport Sciences, 11 Medical And Health Sciences, 09 Engineering, 13 Education | ||||||||||||
SGUL Research Institute / Research Centre: | Academic Structure > Population Health Research Institute (INPH) | ||||||||||||
Journal or Publication Title: | Br J Sports Med | ||||||||||||
ISSN: | 1473-0480 | ||||||||||||
Language: | eng | ||||||||||||
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Publisher License: | Creative Commons: Attribution 4.0 | ||||||||||||
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PubMed ID: | 29440040 | ||||||||||||
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URI: | https://openaccess.sgul.ac.uk/id/eprint/109631 | ||||||||||||
Publisher's version: | https://doi.org/10.1136/bjsports-2017-098733 |
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