The aim of study was to identify barriers to physical activity in adolescents. Focus group interviews were conducted with subjects aged 15 to 18 years (n=59, 50.8% girls) and divided according to gender. Content analysis was used to classify the reports into specific dimensions. Descriptive statistics employing relative and absolute frequencies of similar reports was performed using the SPSS 11.0 software. The most frequent barriers among adolescents were those associated with "psychological, cognitive and emotional" and "cultural and social" dimensions. For boys, the most frequently reported barriers were "feeling lazy", "lack of company" and "lack of time". For girls, "feeling lazy", "lack of company" and "occupation" were the most common barriers. In conclusion, the perception of barriers by adolescents varies according to gender, a fact requiring specific actions for the promotion of physical activity in this group.
Determinants; Behavior; Adolescence; Youngsters; Exercise