1343 R. pesq.: cuid. fundam. online 2020. Jan./Dec. 1343-1348 RESEARCH DOI: 10.9789/2175-5361.rpcfo.v13.10021| Gomes JS, Silva D, Costa MMF, et al. | EFFECTIVENESS OF EDUCATIONAL PROGRAM... DOI: 10.9789/2175-5361.rpcfo.v13.10021 EFFECTIVENESS OF EDUCATIONAL PROGRAM FOR PREVENTION OF JUVENILE OBESITY Efetividade de programa educativo para prevençâo de obesidade juvenil Eficacia del programa educativo para la prevención de la obesidad juvenil Josiane da Silva Gomes 1 *; Dheinna da Silva 2 ; Mágila Maria Feijão da Costa 3 ; Maristela Inês Osawa Vasconcelos 4 ; Lívia Moreira Barros 5 How to quote this article: Gomes JS, Silva D, Costa MMF, et al.Efectiveness of educational program for prevention of juvenile obesity. Rev Fun Care Online.2020. Jan./Dec.; 12:1343-1348. DOI: http://dx.doi.org/10.9789/2175-5361.rpcfo.v13.10021 ABSTRACT Objective: To evaluate the efectiveness of the educational program aimed at preventing obesity among school adolescents, anchored in the trans-theoretical model of behavior change. Method: a quasi-experimental study of a single group, with a quantitative approach, carried out in a public high school in the city of Sobral-Ceará with 39 adolescents through the implementation of an educational program. Results: the educational program was efective in reducing anthropometric variables: weight (58.85 to 58.31, p=0.005); abdominal circumference (73.5 to 72.65 cm, p=0.000); hip circumference (91.65 to 90.75 cm, p=0.000) and body mass index (22.89 to 22.67 kg/m2, p=0.012). In M-1, most students were in the pre-contemplation stage (66.7%). Along the moments of collection, it was observed a discrete increase in the percentage of contemplation. Conclusion: educational interventions to prevent juvenile obesity are valid tools to be used by health professionals together with the school, favoring health promotion and empowerment of adolescents. Descriptors: Obesity, Adolescent, Health education, Quality of life, Nursing. 1 Nurse, Master in Nursing from the Federal University of Ceará. Sobral-Ceará-Brazil. 2 Nurse graduated from Vale do Acaraú State University. Sobral-Ceará-Brazil. 3 Nursing Student at Vale do Acaraú State University. Sobral-Ceará-Brazil. 4 PhD in Nursing. Professor at Vale do Acaraú State University. Sobral-Ceará-Brazil. 5 Nurse. PhD in Nursing. Professor at the University of International Integration of Afro-Brazilian Lusophony. Redenção-Ceará-Brazil.