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Updated: Sep 12, 2025

Multidisciplinary Approach to Obesity Management: A Case Report
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Romantic partner undermining in a behavioral weight loss intervention.

Marny M Ehmann1, Nicole T Crane2, Reena S Chabria2

  • 1Department of Psychological and Brain Sciences and Center for Weight, Eating and Lifestyle Sciences (WELL Center), Drexel University, Philadelphia, PA, USA. mme52@drexel.edu.

Journal of Behavioral Medicine
|August 8, 2025
PubMed
Summary

Romantic partner undermining, a barrier to weight loss, decreased significantly during a behavioral weight loss (BWL) intervention. This suggests BWL programs can help reduce negative partner influence on weight management efforts.

Keywords:
Behavioral weight lossObesitySocial influencesSocial undermining

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Area of Science:

  • Psychology
  • Health Behavior
  • Social Influence

Background:

  • Romantic partner undermining involves negative attitudes and behaviors that hinder weight loss efforts.
  • This study is the first to examine romantic partner undermining within a behavioral weight loss (BWL) intervention context.
  • Understanding undermining is crucial as it can impede successful weight management.

Purpose of the Study:

  • To investigate romantic partner undermining attitudes and behaviors in participants of a BWL intervention.
  • To determine if undermining differs based on relationship quality.
  • To assess if undermining varies between participants who chose their partner as a support and those who did not.

Main Methods:

  • 128 participants in a group-based BWL intervention reported on perceived undermining at baseline and 3 months.
  • Data collected included undermining attitudes and behaviors.
  • Analyses examined changes in undermining and differences based on relationship support roles.

Main Results:

  • Participants reported minimal undermining at baseline and 3 months.
  • A significant reduction in both undermining attitudes and behaviors was observed from baseline to 3 months (p < .05).
  • No specific analysis on relationship quality or partner support role was detailed in the abstract's results.

Conclusions:

  • Group-based BWL interventions show potential in mitigating romantic partner undermining, even without specific content addressing it.
  • BWL interventions may indirectly reduce negative social influence from romantic partners on weight loss.
  • Further research is needed to explore undermining across different conditions and with more frequent assessments.