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Related Experiment Video

Updated: Jun 19, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
05:10

Multidisciplinary Approach to Obesity Management: A Case Report

Published on: May 30, 2025

Adherence is a multi-dimensional construct in the POUNDS LOST trial.

Donald A Williamson1, Stephen D Anton, Hongmei Han

  • 1Pennington Biomedical Research Center, LSU System, 6400 Perkins Rd., Baton Rouge, LA, USA. williada@pbrc.edu

Journal of Behavioral Medicine
|October 27, 2009
PubMed
Summary
This summary is machine-generated.

Treatment adherence in weight management is best understood as multi-dimensional, encompassing both behavioral and dietary aspects. This study found distinct behavioral and dietary adherence dimensions in a large trial.

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Area of Science:

  • Behavioral Science
  • Nutrition Science
  • Clinical Research

Background:

  • The conceptualization of treatment adherence remains debated, with uncertainty regarding its uni-dimensional versus multi-dimensional nature.
  • Understanding adherence is crucial for optimizing the effectiveness of weight management programs.

Purpose of the Study:

  • To determine if adherence to a weight management program is best represented as a uni-dimensional or multi-dimensional construct.
  • To identify the specific dimensions of adherence within a weight management intervention.

Main Methods:

  • An ancillary study of the POUNDS LOST trial analyzed data from 811 overweight/obese adults.
  • Exploratory and confirmatory factor analyses were used to examine eight indicators of adherence collected over 6 months.
  • Participants were assigned to one of four dietary macronutrient compositions.

Main Results:

  • Two distinct dimensions of adherence were identified and confirmed: behavioral adherence and dietary adherence, explaining 66% of the variance.
  • Behavioral adherence did not vary significantly across the different dietary interventions.
  • A high-fat diet prescription was associated with greater dietary adherence compared to a low-fat diet.

Conclusions:

  • Adherence to weight management programs is best conceptualized as a multi-dimensional construct.
  • The two key dimensions identified are behavioral adherence and dietary adherence.
  • Dietary composition influences dietary adherence, highlighting the importance of personalized approaches.