Comparing Psychosocial Predictors of Physical Activity Adoption and Maintenance |
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Authors: | David M Williams Beth A Lewis Shira Dunsiger Jessica A Whiteley George D Papandonatos Melissa A Napolitano Beth C Bock Joseph T Ciccolo Bess H Marcus |
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Institution: | (1) Alpert Medical School of Brown University and The Miriam Hospital, Centers for Behavioral and Preventive Medicine, Coro Bldg., Suite 500, One Hoppin Street, Providence, RI 02903, USA;(2) School of Kinesiology, University of Minnesota, Minneapolis, MN, USA;(3) Program in Public Health, Brown University, Providence, RI, USA;(4) Department of Exercise and Health Sciences, University of Massachusetts, Boston, MA, USA;(5) Department of Kinesiology, Temple University, Philadelphia, PA, USA |
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Abstract: | Background
Most health behavior models do not distinguish between determinants of behavior adoption and maintenance.
Purpose
This study compared psychosocial predictors of physical activity (PA) adoption and predictors of PA maintenance among 205
initially sedentary adults enrolled in a home-based PA promotion trial.
Methods
Psychosocial variables were measured at 6 months (at which point 107 participants remained inactive and 98 participants adopted
regular PA) and used to predict 12-month PA status (an indicator of PA adoption among those inactive at 6 months and an indicator
of PA maintenance among those active at 6 months).
Results
Six-month PA status moderated the relationships between 6-month measures of home access to PA equipment (p = .049), self-efficacy (p = .086), and perceived satisfaction (p = .062) and 12-month PA status. Simple effects analyses revealed that home access to PA equipment was predictive of PA adoption
(OR = 1.73; 95% CI: 1.05, 2.85), but not PA maintenance (OR = 0.88; 95% CI: 0.58, 1.35), whereas self-efficacy and perceived
satisfaction were predictive of PA maintenance (OR = 2.65; 95% CI: 1.55, 4.52; OR = 1.95; 95% CI: 0.93, 4.06), but not PA
adoption (OR = 1.50; 95% CI: 0.87, 2.57; OR = 0.82, CI: 0.44, 1.52).
Conclusion
Results suggest that these psychosocial variables may operate differently in predicting PA adoption versus maintenance. |
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Keywords: | Adoption Maintenance Physical activity Social cognitive theory Perceived satisfaction |
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