Childhood obesity is a health problem in Brazil and worldwide. It is estimated that 75 million children will be obese in 2025 (Brasil, Ministério da Saúde, 2014; World Health Organization, 2014). For adults, overweight is defined as a relative weight ratio higher than desirable to height whereas obesity is excessive fat accumulation in the body, with body mass index (BMI) higher than 25 kg/m 2 (World Health Organization, 2017). In children and adolescents, obesity is considered from the BMI classification above the 97th percentile, following the growth curves, and the values are exposed in z-score and median percentile of the reference sample, according to WHO (2006). In 2013, children and adolescents obese in developed countries were 12.9% for boys and 13.4% for girls (Ng et al., 2014). In Brazil, in the age group 5 to 9 years, the percentage of overweight children reached an alarming 33.5%, according to the last Survey of Family Budgets/Pesquisa de Orçamentos Familiares (POF 2008-09), conducted by the Brazilian Institute of Geography and Statistics/Instituto Brasileiro de Geografia e Estatística (IBGE, 2008). Overweight and obesity are considered physical health risk factors for children and adolescent development, increasing the risk of cardiovascular diseases, abnormal glucose metabolism, liver and gastrointestinal disorders, sleep apnea and orthopedic complications. There are also psychological consequences, such as depression, anxiety, body image distortion and socialization problems, in children too (Sahoo et al., 2015). The lack of physical activity is a contributory factor to the problem (