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J Phys Act Health. 2007 Oct;4(4):381-96.

Social context of physical activity and weight status in working-class populations.

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  • 1Harvard School of Public Health, 665 Huntington Ave., Building 2-331, Boston, MA, USA.

Abstract

BACKGROUND:

Persistent disparities suggest that multiple aspects of social context may influence leisure-time physical activity levels and weight status in multiethnic, working-class populations.

METHODS:

Among participants in two randomized, controlled intervention trials (n = 1,969 in 10 health centers; n = 1545 in 26 manufacturing businesses) we used general linear mixed models to examine the relationship of variables posited by a social-contextual framework for behavior change with h/wk of self-reported leisure-time physical activity and with body mass index (BMI; weight [kg]/[height (m)2]) at baseline, adjusting for clustering within study site.

RESULTS:

Age, sex, race/ethnicity, and socioeconomic position were independently associated with leisure-time physical activity in both settings; multivariable models explained 15% of the variance in health centers and 11% in small businesses. Leisure-time physical activity and motivation to change lifestyle behaviors were inversely associated with BMI, adjusting for individual, interpersonal, and neighborhood factors. Models explained 12% of the variance in BMI in health centers and 10% in small businesses.

CONCLUSIONS:

A social-contextual framework highlights the contribution of social class and race/ethnicity in the variance in leisure-time physical activity and weight status but suggests other behavioral influences vary in multiethnic, working-class populations.

PMID:
18209230
[PubMed - indexed for MEDLINE]
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