Prevalence of insufficient physical activity in adolescents in South Brazil Prevalência de atividade física insuficiente em adolescentes do Sul do Brasil

3 Abstract - The purpose of the study was to estimate the prevalence of insufficient physical activity and associated factors in adolescents 10 to 19 years old living in the Health Districts of Restinga and Extremo Sul of Porto Alegre, RS. A population-based, cross-sectional study was conducted by a systematic sampling with 967 adolescents randomly selected. Data was collected by using a questionnaire with the following variables: gender, age,...