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Updated: Mar 18, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
Published on: May 30, 2025
The Fit Family Challenge: A Primary Care Childhood Obesity Pilot Intervention
Bonnie T Jortberg1, Raquel Rosen2, Sarah Roth2
1From the Department of Family Medicine, University of Colorado School of Medicine, Aurora (BTJ, LMD, LC, NSA, MKB, WPD); the Colorado Academy of Family Physicians (RR, SR, LC); and Rose Family Medicine Residency Program, Rose Medical Center, Denver, CO (NSA, MKB). bonnie.jortberg@ucdenver.edu.
Insights
The Fit Family Challenge (FFC) is a feasible primary care intervention for childhood obesity. It led to significant improvements in BMI percentile and lifestyle factors for children completing the program.
Area of Science:
- Pediatric Health
- Public Health Interventions
- Behavioral Medicine
Background:
- Childhood obesity rates have risen significantly over decades.
- Primary care settings are recommended for obesity identification and intervention.
- The Fit Family Challenge (FFC) is a novel primary care-based intervention.
Purpose of the Study:
- To describe the implementation of the FFC program.
- To evaluate the results of the FFC intervention in primary care.
- To assess changes in clinical and lifestyle factors related to childhood obesity.
Main Methods:
- A pilot study involving 29 primary care practices in Colorado.
- Intervention included training on obesity guidelines and a family-focused curriculum.
- 290 children (aged 6-12) with BMI above the 85th percentile participated.
Main Results:
- FFC implementation was feasible in primary care settings.
- Significant decreases in BMI percentile and BMI z-scores observed with 9-15 months follow-up.
- Lifestyle factors improved; food insecurity and Spanish-speaking families showed less follow-up.
Conclusions:
- Primary care-based childhood obesity interventions can yield significant clinical improvements.
- The FFC demonstrates potential for effective childhood obesity management in primary care.
- Further research is needed to optimize interventions for diverse populations.
Background:
Childhood obesity has increased dramatically over several decades, and the American Academy of Pediatrics has recommended primary care practices as ideal sites for the identification, education, and implementation of therapeutic interventions. The objective of this study was to describe the implementation and results for the Fit Family Challenge (FFC), a primary care-based childhood obesity intervention.
Methods:
A single-intervention pilot project that trains primary care practices on childhood obesity guidelines and implementation of a family-focused behavior modification curriculum. A total of 29 family medicine and pediatric community practices in Colorado participated. Participants included 290 patients, aged 6 to 12 years, with a body mass index (BMI) above the 85th percentile. The main outcome measure included the feasibility of implementation of a childhood obesity program in primary care; secondary outcomes were changes in BMI percentile, BMI z-scores, blood pressure, and changes in lifestyle factors related to childhood obesity.
Results:
Implementation of FFC is feasible, statically significant changes were seen for decreases in BMI percentile and BMI z-scores for participants who completed 9 to 15 months of follow-up; lifestyle factors related to childhood obesity in proved Spanish-speaking families and food insecurity were associated with less follow-up time (P < .01).
Conclusions:
A primary care-based childhood obesity intervention may result in significant clinical and lifestyle changes.
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