THE PHYSICAL ACTIVITY, SELF-CONCEPT AND ACADEMIC PERFORMANCE AMONG PORTUGUESE ADOLESCENTS
The present study aimed to study the relationship between physical exercise, self-concept and school achievement in students of the second and third cycles of schooling aged 12 to 19 years. It also aims to verify if exercise habits reflect the recommendations for health maintenance. The sample consisted of 624 individuals (268 males, 354 females). The self-concept Questionnaire II (SDQ-II) (Marsh, 1990; Portuguese version of Gonçalves & Vasconcelos-Raposo, 2001) was used to measure self-concept and to evaluate the school achievement we took into consideration the accumulated number of failures in school. In general, it was concluded that there is a positive correlation between self-concept and physical exercise, as well as a positive correlation between self-concept and school performance.text
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