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The transtheoretical model is an effective weight management intervention: a randomized controlled trial
Patrícia Pinheiro de Freitas1, Mariana Carvalho de Menezes1, Luana Caroline Dos Santos1,2
1Research Group in Nutrition Interventions, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
BMC Public Health
|May 13, 2020
Summary
This study shows that individualized weight management interventions using the transtheoretical model (TTM) in primary health care effectively reduced body weight and improved health markers in obese women. Further research is needed for long-term weight maintenance.
Area of Science:
- Public Health
- Behavioral Science
- Obesity Research
Background:
- The global obesity epidemic necessitates effective interventions within primary health care (PHC).
- The transtheoretical model (TTM) offers a framework for behavior change interventions.
- Evaluating TTM-based strategies for weight management in PHC is crucial.
Purpose of the Study:
- To evaluate the effectiveness of a 6-month individualized weight management intervention based on the TTM in Brazilian PHC.
- To assess the impact of the intervention on anthropometric, dietary, and biochemical parameters in obese and overweight women.
Main Methods:
- A randomized controlled trial involving obese/overweight women aged 20+ in Brazilian PHC.
- Intervention group received standard care plus TTM-based health counseling; control group received standard care.
- Outcome measures included anthropometry, food/nutrient profiles, and inflammatory markers; analysis used intention-to-treat and ANCOVA.
Main Results:
- A statistically significant difference in body weight (-1.4 kg) between groups post-intervention.
- Approximately 97% of the intervention group reported benefits, showing positive changes in diet, biochemical markers, and anthropometry.
- The intervention group demonstrated improved body mass index, resistin, and blood glucose levels compared to the control group.
Conclusions:
- Individualized TTM-based interventions are effective strategies for weight management within PHC settings.
- The findings support the integration of interdisciplinary practices in obesity management.
- Further research is required to identify strategies for sustainable weight maintenance in low-income obese women.
