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Multidisciplinary Approach to Obesity Management: A Case Report
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Development, Challenges, and Evolution of the Log2Lose Intervention for Weight Management: Randomized Controlled

Ryan Jeffrey Shaw1, Hailey Miller2, Cherie Barnes1

  • 1School of Nursing, Duke University, Durham, NC, United States.

JMIR Formative Research
|November 17, 2025
PubMed
Summary

Financial incentives aided weight loss maintenance in a remote trial. The Log2Lose platform used technology and adaptable support to overcome challenges, offering a model for digital health interventions.

Keywords:
dietmobile phoneremote monitoringweight lossweight maintenance

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Area of Science:

  • Digital Health Interventions
  • Behavioral Economics
  • Weight Management Research

Background:

  • Long-term weight loss adherence is difficult, with most individuals regaining weight annually.
  • Financial incentives show promise for weight loss initiation and maintenance, but optimal strategies require further study.

Purpose of the Study:

  • To describe the design, technical architecture, and operational workflow of the Log2Lose randomized controlled trial.
  • To test different financial incentive strategies for promoting weight loss and maintenance.
  • To detail platform integration, automated data collection, and adaptations for intervention fidelity.

Main Methods:

  • The Log2Lose platform collected daily weight and dietary data via consumer technology.
  • Automated feedback and motivational text messages were sent, with incentive eligibility calculated weekly.
  • Technical adaptations, message delivery, data completeness, and automation vs. manual support were summarized.

Main Results:

  • 706 participants contributed extensive weight and dietary data over the study period.
  • The platform automatically processed 99.4% of incentive payments and sent over 126,000 text messages.
  • Adaptations were made for technological changes and regulatory requirements, highlighting the need for ongoing technical support.

Conclusions:

  • Large-scale, remote weight loss interventions are feasible with consumer technology and an adaptable platform.
  • Success relied on flexible software, continuous monitoring, and responsive technical support to manage changes.
  • Log2Lose provides a practical model for remote data collection and digital health interventions.