Relations of total physical activity and intensity to fitness and fatness in children: the European Youth Heart Study1–3

Background: It is unclear how the amount and intensity of physical activity (PA) are associated with cardiovascular fitness (CVF) and body fatness in children. Objective: We aimed to examine the associations of total PA and intensity levels to CVF and fatness in children. Design: A cross-sectional study of 780 children aged 9–10 y from Sweden and Estonia was conducted. PA was measured by accelerometry and was expressed as min/d of total PA,...