The effects of weight and physical activity change over 20 years on later-life objective and self-reported disability

Williams, Emily, Eastwood SV, SV, Tillin, T, Hughes, Alun D and Chaturvedi, Nishi (2014) The effects of weight and physical activity change over 20 years on later-life objective and self-reported disability International Journal of Epidemiology, 43 (3). pp. 856-865.

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Abstract

Background: Weight and health behaviours are known to affect physical disability; however the evidence exploring the impact of changes to these lifestyle factors over the life course on disability is inconsistent. We aimed to explore the roles of weight and activity change between mid and later life on physical disability. Methods: Baseline and 20-year clinical follow-up data were collected from 1418 men and women, aged 58–88 years at follow-up, as part of a population-based observational study based in north-west London. At clinic, behavioural data were collected by questionnaire and anthropometry measured. Disability was assessed using a performance-based locomotor function test and self-reported questionnaires on functional limitation and basic activities of daily living (ADLs). Results: At follow-up, 39% experienced a locomotor dysfunction, 24% a functional limitation and 17% an impairment of ADLs. Weight gain of 10–20% or >20% of baseline, but not weight loss, were associated with increased odds of a functional limitation [odds ratio (OR) 1.69, 95% confidence interval (CI) 1.14-2.49 and OR 2.74, 1.55-4.83, respectively], after full adjustment for covariates. The same patterns were seen for the other disability outcomes. Increased physical activity reduced, and decreased physical activity enhanced the likelihood of disability, independent of baseline behaviours and adiposity. The adverse effects of weight gain appeared to be lessened in the presence of increased later-life physical activity. Conclusion: Weight and activity changes between mid and later life have strong implications for physical functioning in older groups. These findings reinforce the importance of the maintenance of healthy weight and behaviour throughout the life course, and the need to promote healthy lifestyles across population groups.

Item Type:	Article
Divisions :	Faculty of Health and Medical Sciences > School of Health Sciences
Authors :	Name Email ORCID Williams, Emily e.d.williams@surrey.ac.uk UNSPECIFIED Eastwood SV, SV UNSPECIFIED UNSPECIFIED Tillin, T UNSPECIFIED UNSPECIFIED Hughes, Alun D UNSPECIFIED UNSPECIFIED Chaturvedi, Nishi UNSPECIFIED UNSPECIFIED
Date :	June 2014
Copyright Disclaimer :	© The Author 2014. Published by Oxford University Press on behalf of the International Epidemiological Association
Uncontrolled Keywords :	Weight change; Disability; Obesity; Physical activity; Older age
Depositing User :	Jane Hindle
Date Deposited :	29 Jun 2017 10:28
Last Modified :	29 Jun 2017 10:28
URI:	http://epubs.surrey.ac.uk/id/eprint/841505

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