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Related Experiment Video

Updated: Jun 26, 2025

Control of Eating Behavior Using a Novel Feedback System

Control of Eating Behavior Using a Novel Feedback System

Published on: May 8, 2018

An Adaptive Behavioral Intervention for Weight Loss Management: A Randomized Clinical Trial.

Bonnie Spring¹, Angela F Pfammatter^1,2, Laura Scanlan¹

¹Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.

|May 14, 2024

Summary

A wireless feedback system (WFS) for weight loss was not superior to WFS with added coaching. Further research is needed to optimize obesity management strategies for diverse individuals.

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Area of Science:

Obesity research
Digital health interventions
Behavioral medicine

Background:

Implementing lifestyle interventions for weight loss in clinical practice presents challenges.
Mobile health (mHealth) solutions, with or without added support, show promise for population-level obesity management.

Purpose of the Study:

To compare the weight loss efficacy of a wireless feedback system (WFS) alone versus WFS with telephone coaching.
To evaluate the effectiveness of different step-up interventions for participants who do not respond to initial weight loss treatment.

Main Methods:

A noninferiority randomized trial involving 400 adults (BMI 27-45) compared WFS versus WFS plus coaching for 3 months.
Participants with suboptimal weight loss were rerandomized to modest or vigorous step-up interventions.
Weight change was assessed at 6, 3, and 12 months; noninferiority margin was -2.5 kg.

Main Results:

The WFS group achieved a mean 6-month weight loss of -2.8 kg, while the WFS plus coaching group lost -4.8 kg (difference -2.0 kg).
The WFS was not noninferior to WFS plus coaching, as the 90% CI for the difference included the -2.5 kg margin.
Step-up interventions for nonresponders did not yield significant differences in weight loss.

Conclusions:

A wireless feedback system alone is not noninferior to the same system with added telephone coaching for weight loss.
Continued research is essential to identify effective weight loss management strategies and personalize interventions for individual needs.