Relations of self-regulation and self-efficacy for exercise and eating and BMI change: A field investigationReport as inadecuate

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BioPsychoSocial Medicine

, 4:10

First Online: 03 September 2010Received: 20 May 2010Accepted: 03 September 2010


ObjectivesThis study aimed to assess relations of self-regulatory skill use with self-efficacy for exercise and appropriate eating, and the resulting change in weight associated with participation in a nutrition and exercise treatment supported by cognitive-behavioral methods.

MethodsAdults with severe obesity N = 95; mean BMI = 40.5 ± 3.9 kg-m participated in a 6-month exercise and nutrition treatment emphasizing self-regulatory skills. Changes in self-regulatory skills usage, self-efficacy, overall mood, and BMI were measured. Relations of changes in self-regulatory skill use and self-efficacy, for both physical activity and appropriate eating, were assessed, as was the possibility of mood change being a mediator of these relationships. Indirect effects of the variables associated with the present treatment on BMI change were then estimated.

ResultsFor both exercise and appropriate eating, changes in self-regulation were associated with self-efficacy change. Mood change partially mediated the relationship between changes in self-regulation for appropriate eating and self-efficacy for appropriate eating. Self-efficacy changes for physical activity and controlled eating, together, explained a significant portion of the variance in BMI change R = 0.26, p < 0.001. The total indirect effect of the treatment on BMI change was 0.20.

ConclusionFindings suggest that training in self-regulation for exercise and eating may benefit self-efficacy and weight-loss outcomes. Thus, these variables should be considered in both the theory and behavioral treatment of obesity.

Electronic supplementary materialThe online version of this article doi:10.1186-1751-0759-4-10 contains supplementary material, which is available to authorized users.

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Author: James J Annesi - Srinivasa Gorjala


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