The Relative Contributions of Psychological, Social, and Environmental Variables to Explain Participation in Walking, Moderate-, and Vigorous-Intensity Leisure-Time Physical Activity
in Journal of Physical Activity and HealthClick name to view affiliation
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Introduction:
This study assessed the relative contributions of psychological, social, and environmental variables to walking, moderate- and vigorous-intensity physical activity.
Methods:
A questionnaire was mailed to a random sample (57% response rate). Analyses used a backwards elimination logistic regression model, removing and replacing individual variables, and adjusting for age, gender, household composition, and education (N = 1827).
Results:
The sociodemographic and correlate variables collectively accounted for 43% of the variation in total activity, 26% of walking, 22% of moderate-intensity activity and 45% of vigorous-intensity activity (Nagelkerke R2). Individually, the correlates accounted for 0.0 to 4.0% of unique variation, with habit, efficacy, and support having higher values. Physical health, discouragement, competition, and time management contributed more to vigorous-intensity activity. Anticipated benefits of social interactions and weight management contributed more to moderate-intensity activity. Neighborhood aesthetics contributed more to walking.
Conclusion:
Walking, moderate- and vigorous-intensity activity might be associated with different correlates.
Burton is with the School of Human Movement Studies, University of Queensland, St. Lucia, QLD 4072, Australia. Turrell and Oldenburg are with the School of Public Health, Queensland University of Technology, Kelvin Grove, QLD 4059 Australia. Sallis is with the Dept of Psychology, San Diego State University, San Diego, CA 92103.
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