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Expanding the criteria for defining success when evaluating weight loss intervention programs
R G Sargent1, R F DiGioacchino, P M Miller
1Department of Health Promotion and Education, School of Public Health, University of South Carolina, Columbia, SC 29208, USA.
Successful weight loss program outcomes require evaluating more than just weight maintenance. This study found that combining diet and physical activity with weight loss improves success metrics.
Area of Science:
- Behavioral Science
- Public Health
- Nutrition Science
Background:
- Residential weight loss programs aim for long-term participant success.
- Evaluating program effectiveness requires assessing sustained weight loss and healthy behaviors.
Purpose of the Study:
- To assess outcomes 1-5 years post-residential weight loss intervention.
- To determine criteria for successful intervention outcomes beyond weight maintenance.
Main Methods:
- Surveyed 187 former participants regarding weight changes and behaviors.
- Assessed diet via fruit/vegetable servings (5-a-day) and physical activity levels.
- Defined success as meeting at least two of three criteria: 10% weight loss, 5-a-day intake, or active lifestyle.
Main Results:
- 35.8% of participants met at least two of the three success criteria.
- Individual behaviors (5-a-day, active lifestyle, weight maintenance) independently reduce risk.
Conclusions:
- Future weight loss interventions should broaden success criteria.
- Include physical activity and diet compliance alongside weight maintenance for comprehensive outcome evaluation.
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