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International Journal of Behavioral Medicine

, Volume 17, Issue 3, pp 168–175 | Cite as

Psychological Factors Discriminating Between Successful and Unsuccessful Weight Loss in a Behavioral Exercise and Nutrition Education Treatment

  • James J. AnnesiEmail author
  • Ann C. Whitaker
Article

Abstract

Background

Psychological and behavioral characteristics that predict success or failure with weight-loss treatments are poorly understood.

Purpose

The purpose of this study was to assess whether social cognitive theory-based factors discriminate between women who are successful and unsuccessful at weight loss.

Method

Obese women (BMI = 30 to 45 kg/m2) who participated in a treatment of behavioral exercise support counseling and nutrition education were divided into quartiles based on percentage of body weight lost over 6 months. Factors based on social cognitive theory, both at baseline and change over 6 months, and exercise attendance were used to discriminate between the successful (highest quartile, Mchange in body weight = −9.3%; n = 40) and unsuccessful (lowest quartile, Mchange in body weight = 1.9%; n = 37) groups.

Results

Stepwise discriminant analyses indicated that body satisfaction and tension (anxiety) scores at baseline, and changes over 6 months in self-regulatory efficacy and body satisfaction, made significant contributions to predicting group membership (64% and 69% of cases were correctly classified, respectively). Attendance percentage of exercise sessions was significantly greater for the successful weight-loss group, and when added as a predictor, changes in self-regulatory efficacy and attendance made a significant contribution to predicting group membership (81% of cases were correctly classified).

Conclusion

Further research may enable psychological determinants to better guide weight loss theory and treatments.

Keywords

Exercise Weight loss Social cognitive Behavioral Self-efficacy Physical activity 

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Copyright information

© International Society of Behavioral Medicine 2009

Authors and Affiliations

  1. 1.YMCA of Metropolitan AtlantaAtlantaUSA
  2. 2.Kaiser PermanenteAtlantaUSA

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