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Keywords:

  • physical activity;
  • psychosocial correlates;
  • social support;
  • self-efficacy;
  • commitment to a plan

Abstract

The importance of physical activity as a health promoting behavior has been well documented. We examined the relationship of social support, self-efficacy, and commitment to a plan of physical activity on physical activity behaviors in a sample of low income college students. Those with higher levels of social support, self-efficacy, and commitment to a plan of physical activity reported more physical activity behaviors. Commitment to a plan of physical activity mediated the relationships of social support and physical activity behavior, and of self-efficacy and physical activity behavior. The results support the importance of exploring the psychosocial correlates of physical activity in explaining the decision process that underlies physical activity behavior. © 2009 Wiley Periodicals, Inc. Res Nurs Health 32:634–646, 2009