Light-intensity physical activity and life expectancy: National ealth and Nutrition Survey

del Pozo Cruz, Borja and Biddle, Stuart J. H. ORCID: https://orcid.org/0000-0002-7663-6895 and Gardiner, Paul A. and Ding, Ding (2021) Light-intensity physical activity and life expectancy: National ealth and Nutrition Survey. American Journal of Preventive Medicine. ISSN 0749-3797

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Abstract

Introduction. Quantifying the number of years gained (YLG) associated with light-intensity physical activity (LPA) may be important for risk communication in public health. With no studies having examined the role of LPA in life expectancy, this study aims to quantify YLG from LPA in a population-based US sample.

Methods. This study used data from 6,636 participants in the National Health and Nutrition Examination Survey (2003-2006). The analyses were conducted in 2020. LPA was categorized into low, medium, and high based on tertiles, and survival models were applied to estimate YLG from each LPA group. The analyses were repeated in participants with MVPA above or below the median.

Results. During a mean follow-up of 11 years and 55,520 person-years, 994 deaths were recorded. At age 20, participants with low, medium and high LPA had a predicted life expectancy of 55.70 (48.70 – 62.70), 58.96 (52.17 – 65.75) and 60.60 (54.03 – 67.18) years, suggesting significant YLG from medium and high levels of LPA of 3.45 (0.77 – 6.12) and 5.24 (1.88 – 8.60) years. Corresponding YLG at age 45 and 65 was 2.93 (0.40 – 5.47) and 1.98 (0.03 – 3.94) years for the medium LPA group, and 4.53 (1.26 – 7.80) and 3.10 (0.42 – 5.78) years for the high LPA group. This association was significant in participants with below-median MVPA but not for those with above-median MVPA.

Conclusion. LPA may extend life expectancy. Given the low prevalence of MVPA in populations, physical activity promotion efforts may capitalise on emerging evidence on LPA, particularly among the most inactive groups.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published online: 10 May 2021. Submitted version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Institute for Resilient Regions - Centre for Health Research (1 Apr 2020 -)
Faculty/School / Institute/Centre: Current - Institute for Resilient Regions - Centre for Health Research (1 Apr 2020 -)
Date Deposited: 10 Jun 2021 23:24
Last Modified: 10 Jun 2021 23:24
Fields of Research (2008): 11 Medical and Health Sciences > 1117 Public Health and Health Services > 111706 Epidemiology
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Fields of Research (2020): 42 HEALTH SCIENCES > 4202 Epidemiology > 420201 Behavioural epidemiology
42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
Socio-Economic Objectives (2008): C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health
Socio-Economic Objectives (2020): 20 HEALTH > 2004 Public health (excl. specific population health) > 200401 Behaviour and health
Identification Number or DOI: https://doi.org/10.1016/j.amepre.2021.02.012
URI: http://eprints.usq.edu.au/id/eprint/42141

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