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Health Psychol. 2006 May;25(3):282-91.

The impact of self-efficacy on behavior change and weight change among overweight participants in a weight loss trial.

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Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Twin Cities Campus, Minneapolis, MN 54454-1015, USA.


Despite considerable clinical interest, attempts to link perceived self-efficacy with successful weight control have had mixed success. Definitive data on prospective associations between self-efficacy and weight loss are particularly sparse. This study examined relationships between self-efficacy beliefs, weight control behaviors, and weight change among individuals participating in a weight loss trial (N = 349, 87% women). Cross-sectionally, eating and exercise self-efficacy beliefs were strongly associated with corresponding weight loss behaviors. Self-efficacy beliefs prospectively predicted weight control behavior and weight change during active treatment but not during follow-up. Mediational models indicate that people's weight control behaviors mediate the impact of self-efficacy on weight change.

[Indexed for MEDLINE]

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