Leisure time physical activity and health-related quality of life
Introduction
Physical activity promotion is now recognized as an important component in health prevention policies. The impact of physical activity on health status has been mostly investigated by objective outcomes. In addition to such health indicators, there is growing use of health-related quality of life (HRQoL) measures assessing subject's perception of their own health. Relationships between physical activity and HRQoL have been mostly investigated in intervention studies on the effects of an exercise training program on HRQoL [1], [2], [3], especially in population with chronic conditions [2], [3]. As yet, there are few studies in the general population. They are mostly cross-sectional, but suggest however that leisure time physical activity (LTPA) is favorably associated with HRQoL [4], [5], [6], [7].
Current physical activity recommendations for the general population are that all adults should accumulate at least 30 min of moderate-intensity physical activity on most, and preferably all, days of the week [8]. Earlier guidelines recommended vigorous exercise for at least 20 min performed 3 or more days per week [9]. There are few studies that have assessed whether meeting these public health recommendations (PHR) for physical activity is associated with better HRQoL [4], [5].
The aim of our study was to investigate, in a large sample of apparently healthy French adults, the relationships of meeting public health recommendations (PHR) for moderate and vigorous physical activity with HRQoL.
Section snippets
Data source
The data analyzed here were collected in the SU.VI.MAX (SUpplementation en VItamines et Minéraux AntioXydants) study. SU.VI.MAX was a randomized, double-blind, placebo-controlled, primary-prevention trial designed to test the efficacy of daily supplementation with antioxidant vitamins (vitamin C, 120 mg; vitamin E, 30 mg, and beta-carotene, 6 mg) and minerals (selenium, 100 μg and zinc, 20 μg) at nutrition-level doses in reducing the incidence of cancers (all sites) and ischemic heart diseases
Subjects' characteristics
Due to SU.VI.MAX inclusion criterion, men were in average 5 years older than women, and thus were more frequently retired (21.2% vs. 9.1%). Majority of subjects lived in urban poles. Minority of the subjects, especially men, were living alone. About one-third of men and women had university or equivalent education level. 85% (with 54% of former smoker) of men and 86.7% (with 33.4% of former smoker) of women were non-smokers. Men were more frequently excessive drinkers than women (29% vs. 6.9%).
Discussion
Results of the present study showed that, in a relatively large sample of French adults men and women, a higher level of LTPA was associated with a higher level of HRQoL in both men and women whatever the HRQoL dimension considered, after adjustment on several HRQoL correlates. More specifically, meeting PHR for physical activity was associated with higher HRQoL scores (except for bodily pain dimension in women).
Our findings have a number of limitations. First, subjects were enrolled in a
Acknowledgments
The SU.VI.MAX project received support from public and private sectors. Special acknowledgements are addressed to Fruit d'Or Recherche, Lipton, Cereal, Candia, Kellogg's, CERIN, LU/Danone, Sodexho, L'Oréal, Estée Lauder, Peugeot, Jet Service, RP Scherer, France Telecom, Becton Dickinson, Fould Springer, Boehringer Diagnostic, Seppic Givaudan Lavirotte, Le Grand Canal, Air Liquide, Carboxyque, Klocke, Trophy Radio, Jouan, Perkin-Elmer.
The authors are very grateful to Etienne Le Bihan for
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