Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Self-determined motivation towards physical activity in adolescents treated for obesity: an observational study. | Verloigne et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8 97 http content 8 1 9 7 INTERNATIONAL JOURNAL OF BEHAVIORAL NUTRITION AND PHYSICAL ACTIVITY RESEARCH Open Access Self-determined motivation towards physical activity in adolescents treated for obesity an observational study 1 12 1 3 3 Maité Verloigne Ilse De Bourdeaudhuij Ann Tanghe Eva DHondt Lotte Theuwis Maarten Vansteenkiste and Benedicte Deforche1 4 Abstract Background Within the Self-Determination Theory SDT framework the first major study aim was to investigate the SDT tenets in an obese adolescent population by examining the factor structure of the Behavioural Regulation in Exercise Questionnaire-2 BREQ-2 and by investigating associations between physical activity PA and motivation in obese adolescents. The second aim was to study differences in motivation according to adolescents educational level since lower educated obese adolescent are a sub-risk group for lower PA levels among the obese adolescents. The third aim was to investigate whether attending a residential obesity treatment program could lead to an increase in autonomous motivation towards PA and to see if the treatment effect on motivation was different in low versus high educated youth. Methods For the first study aim the sample comprised 177 obese adolescents at the start of a 10-month multidisciplinary residential obesity treatment program BMI kg m2 years 62 girls . A subsample of 65 adolescents stratified by educational level were divided into low n 34 versus high educated n 31 as part of the second and third study aim. Motivation was assessed using the BREQ-2 and PA using the Flemish Physical Activity Questionnaire. Results Exploratory factor analysis showed sufficient validations with the original factor for 17 out of 19 BREQ-2 items. Significant positive correlations were found between PA and the composite score of relative autonomy r p introjected r .