Objective. e objective of this research is to analyse the relationship between the perceived body mass index and physicalactivity in adolescents. Method. A total of 605 adolescent students between 12 and 15 years old participated. e variables forperceived weight, height and physical activity level were assessed using a self-report questionnaire. Results. e results showedsignicant associations between the perceived body mass index and the physical activity level. e regression analysis showed thatthe perceived body mass index serves to predict the physical activity level. e analysis of covariance, demonstrated the existenceof signicant differences between overweight and obese adolescents versus those of normal weight. Conclusion. It has been shownthat adolescents who perform less PA are more likely to be overweight.
