Recently, it has been intensely discussed the failure of the prescriptive treatments (usually based on restrictive diets) for obesity. New proposals, more interdisciplinary and holistic, have emerged. Thus, the present study aims to investigate the multiple physiological, attitudinal, nutritional and behavioral effects of an interdisciplinary intervention based on the "Health at Every Size" approach among obese women through a randomized controlled clinical trial of mixed methods (qualitative and quantitative). There will be recruited adult women, with a body mass index (BMI) between 30 and 39.9 kg/m2, which will be randomly allocated into two groups, whose follow-up will be seven months. The experimental group/intervention will take part in sessions of physical activity, nutrition counseling and philosophical workshops, aligned with the principles of the "Health at Every Size". The control group will participate in bimestrial lectures about the same contents offered to the experimental group, encouraging the adoption of healthy lifestyles. In the quantitative component, the following outcomes will be compared between groups: Framingham score (primary outcome); blood pressure; blood concentrations of total cholesterol, HDL, LDL, VLDL, glucose, insulin, PCR, VHS, cortisol, leptin, adiponectin; circumferences of waist and hip; body weight; BMI; fat mass; fat-free mass; maximal aerobic capacity; physical activity; muscle function; functional mobility; disordered eating attitudes; binge eating symptoms; attitudes towards taste; food cravings; body attitudes; body dissatisfaction and quality of life. The qualitative component will analyze the experiences of the subjects along the intervention, through focal groups and semistructured interviews, which will be submitted to content analysis. The team of interdisciplinary research involved in this proposal has varied and complementary expertise, making the project feasible. The production of knowledge arising from this proposal will help to guide new interdisciplinary interventions that can in a broad sense enhance the health of obese individuals.
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