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Non-exercise physical activity and survival: English longitudinal study of ageing

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posted on 30.10.2015 by Mark Hamer, Cesar de Oliveira, Panayotes Demakakos
Background: The activity patterns of older adults include more light/mild-intensity or “nonexercise” activity and less moderate- to vigorous-intensity activity. The health benefits of this type of activity pattern remain unclear. Purpose: To examine dose–response associations between physical activity and survival using time-varying analysis to understand the importance of “non-exercise” activity for survival in older adults. Methods: Participants (N¼10,426) were drawn from The English Longitudinal Study of Ageing, a representative sample of men and women aged Z50 years living in England. Participant data were linked with death records from the National Health Service registries from 2002 to 2011. Analyses were conducted in 2013. Cox proportional hazards models were used to estimate the risk of death according to time-varying estimates of physical activity. Results: Over an average follow-up of 7.8 years (median follow-up, 8.5 years), there were 1,896 deaths. In models adjusted for comorbidities, psychosocial factors, smoking, and obesity, there was a dose–response association between time-varying physical activity and mortality, with the greatest survival benefit in vigorously active participants. However, participating in mild (“non-exercise”)- intensity physical activity was also associated with a lower risk of all-cause mortality (hazard ratio [HR]¼0.76, 95% CI¼0.69, 0.83); cardiovascular mortality (HR¼0.74, 95% CI¼0.64, 0.85); and death by other causes (HR¼0.67, 95% CI¼0.58, 0.78). Time-varying models produced stronger, more robust estimates than models using a single measurement of physical activity at baseline. Conclusions: Older adults gain health benefits from participating in regular “non-exercise” physical activity, although the greatest benefits are observed for more vigorous activity.

Funding

Funding was provided by the National Institute on Aging in the U.S. (grant nos. 2RO1AG7644-01A1 and 2RO1AG017644) and a consortium of United Kingdom government departments coordinated by the Office for National Statistics. MH is supported by the British Heart Foundation (RE/10/005/28296).

History

School

  • Sport, Exercise and Health Sciences

Published in

American Journal of Preventive Medicine

Citation

HAMER, M., DE OLIVEIRA, C. and DEMAKAKOS, P., 2014. Non-exercise physical activity and survival: English longitudinal study of ageing. American Journal of Preventive Medicine, 47(4), pp. 452–460.

Publisher

© The Authors. The American Journal of Preventive Medicine. Published by Elsevier Inc.

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014

Notes

Open access under CC BY-NC-ND license.

ISSN

1873-2607

Language

en

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