Physical Activity and Its Potential Determinants in Obese Children and Adolescents under Specialist Outpatient Care-A Pilot Cross-Sectional Study.

(1) Background: this study aimed to assess the physical activity of obese pediatric patients under specialized outpatient care and its potential determinants. (2) Methods: A total of 83 subjects aged 7-18 years with simple obesity and their parents were enrolled. Data were collected with the use of physical activity questionnaires (PAQs) for children and adolescents and additional questions concerning selected socio-demographic characteristics. (3) Results: The mean final PAQ score was 2.09 ± 0.69. The most frequently chosen types of physical activity included walking, gymnastics, and jogging or running. We found a weak correlation inversely proportional between the child's age and mean final PAQ score (r = -0.25; p = 0.02). Younger children were more active during lunchtime at school and after school compared to adolescents ( p = 0.03 and p = 0.04). The final PAQ score differed according to the place of residence; the lowest score was obtained by subjects living in cities >100,000 inhabitants ( p = 0.025). We found a positive correlation between PAQ-Ch score and the father's physical activity, and between PAQ-A score and the mother's education. (4) Conclusions: The physical activity of obese pediatric patients is low, particularly in adolescents. It seems that age and place of residence have an impact on the physical activity of obese children and adolescents. The PAQs used in this study are useful in physical activity assessment and identification of time segments during the day in which activity might be improved. However, this requires confirmation in a larger group of pediatric patients.