Physical activity levels, exercise attitudes, self-perceptions and BMI type of 11 to 12-year-old children.

This study examined elementary school pupils with different body mass index (BMI) as to attitudes towards exercise, self-perception, lesson satisfaction in physical education and participation in physical activity. Seven hundred and seventy-five pupils participated in this study, aged 11-12 years. The study was conducted through questionnaires. Students were divided according to their BMI: normal, overweight and obese. Two-way analysis of variance was used, with gender and BMI type as independent variables. The results revealed that when compared to students with a normal BMI, the obese and overweight students had lower scores in lesson satisfaction, negative views of their body and reduced levels of physical activity. Also, the results showed that the obese and overweight students adopted more sedentary daily habits, such as many hours of TV watching and PC usage. The results of this study imply the need for necessary school interventions in order to encourage healthier behaviours and habits.