The Effects of If-Then Plans on Weight Loss: Results of the McGill CHIP Healthy Weight Program Randomized Controlled Trial
Bärbel Knäuper , Kimberly Carrière , Mallory Frayn , Elena Ivanowa , Zhen Xu , Anaïs Ames-Bull , Farah Islam , Ilka Lowensteyn , Gentiana Sadikaj , Aleksandra Łuszczyńska , Steven Grover
AbstractObjective: The NIH-developed Diabetes Prevention Program (DPP) is successful in achieving clinically significant weight loss in individuals with overweight/obesity when delivered one-on-one. The groupbased DPP is less effective, with average weight losses of only 3.5%. The objective of this study was to increase weight loss outcomes of the group-based DPP by integrating habit formation tools (i.e., if-then plans). This two-arm randomized controlled trial tested the efficacy of the habit formation–enhanced group-based DPP compared with the standard group-based DPP on changes in body weight (primary outcome). This study presents the 3- and 12-month results of this 24-month trial. Methods: A total of 208 participants were randomly assigned to the standard or enhanced DPP, and 172 participated. Participants were men and women with overweight/obesity who self-reported less than 200 min/wk of exercise. Results: Both groups achieved high weight losses at 3 (5.76%) and 12 (9.98%) months, with no differences between groups (v2<1). Both groups improved in blood pressure and physical activity. Conclusions: If-then plans did not result in higher weight loss. Both program versions resulted in higher weight loss than the group-based DPP. This may suggest that cognitive behavioral therapy skills of the coaches (clinical psychology doctoral students) was a key factor in treatment outcome.
|Corporate author||The McGill CHIP Healthy Weight Program Investigators|
|Journal series||Obesity, ISSN 1930-7381, (A 40 pkt)|
|Publication size in sheets||0.5|
|ASJC Classification||; ; ;|
|Publication indicators||: 2016 = 1.217; : 2017 = 4.042 (2) - 2017=4.355 (5)|
|Citation count*||6 (2021-01-20)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.