Health Education Research, Vol. 17, No. 5, 637-647,
October 2002
© 2002 Oxford University Press
Health Opportunities with Physical Exercise (HOPE): social contextual interventions to reduce sedentary behavior in urban settings
Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, 1 Women’s Exercise Research Lab, St Louis University, St Louis, MO 63117 and 2 Hope and Healing, The Church Health Center, Memphis, TN 38104, USA
Physical activity interventions targeting social and physical environments of the urban poor hold promise in improving health outcomes in underserved communities. This study randomly assigned overweight, sedentary, economically disadvantaged adults to one of three intervention conditions at The Hope and Healing Center, a large inner-city health facility providing numerous options for exercise. Within the tenets of Social Action Theory, the Health Opportunities with Physical Exercise (HOPE) trial will test the efficacy of two behavior change models, social support and patient–provider interaction, to increase physical activity. In addition to a standard care condition, in which patients have open access to Hope and Healing physical activity programming, patients were assigned to one of two behavior change interventions. Those assigned to patient–peer receive face-to-face, systematic and scheduled encouragement from study-trained ‘peer’ interventionists at the facility. Patients assigned to patient–provider receive face-to-face, systematic and scheduled encouragement provided by study-trained ‘provider’ interventionists also at the facility. The primary outcomes of change in exercise behavior will be documented by self-reported physical activity and confirmed by fitness testing at baseline, 6, 12 and 24 months during the 1 year of active intervention and 1 year of relapse prevention follow-up. Intervention conditions will be compared on psychosocial mediators including motivational appraisals, ratings of social support, rapport, problem solving and self-efficacy for overcoming barriers to increased physical activity. Novel aspects of this intervention include: (1) delivery of socially based physical activity interventions to an economically disadvantaged urban population, (2) reduction of environmental barriers to be physically active and (3) emphasis on social interactions influencing health habit change. Results of this study have the potential to identify mechanisms of behavior change that could be adopted by physical activity interventions aimed at reducing sedentary behavior and health disparities in high-risk, underserved populations.
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