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Using mixed methods to develop and evaluate an online weight management intervention.

Katherine Bradbury1, Laura Dennison, Paul Little

  • 1Centre for Applications of Health Psychology, University of Southampton, UK.

British Journal of Health Psychology
|November 20, 2014
PubMed
Summary
This summary is machine-generated.

This study shows that the Positive Online Weight Reduction (POWeR) program is a viable e-health tool for sustainable weight loss. Brief human support may enhance its effectiveness, but more research is needed on optimal support delivery.

Keywords:
e-healthintervention developmentmixed methodsobesityweight management

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Area of Science:

  • Health Technology
  • Behavioral Science
  • Obesity Research

Background:

  • E-health interventions show promise for weight management.
  • The role of human support in enhancing e-health effectiveness requires further investigation.
  • Optimal strategies for integrating human support into online weight loss programs are not well-defined.

Purpose of the Study:

  • To illustrate the mixed-methods approach in developing and evaluating the Positive Online Weight Reduction (POWeR) e-health program.
  • To explore how human support influences intervention usage and sustainable weight loss.
  • To assess the acceptability and potential effectiveness of the POWeR program.

Main Methods:

  • A mixed-methods approach combining quantitative and qualitative data collection was employed.
  • Development involved iterative feedback on the intervention design.
  • Feasibility and community-based trials with nested qualitative studies evaluated human support levels and usage.

Main Results:

  • The POWeR program demonstrated acceptability and potential effectiveness for weight loss.
  • Human support generally enhanced intervention usage, though not without challenges.
  • Indications suggest brief human support may yield more sustainable weight loss outcomes than intensive support, potentially by avoiding patient reliance.

Conclusions:

  • Mixed methods provide richer insights for intervention development and evaluation than single methods.
  • Qualitative findings offer crucial context on the optimal delivery of human support in e-health interventions.
  • Brief human support may be a valuable component for enhancing engagement and outcomes in online weight loss interventions.