Adolescents’ Physical Activity in Education Systems Varying in the Number of Weekly Physical Education Lessons

Purpose: School physical activity (SPA) is a significant component of daily PA. We investigated differences in PA between boys and girls in two differing education systems—Poland and the Czech Republic—which have four and two physical education lessons (PELs) per week, respectively. Method: This project was conducted from 2012–2016 at 17 Polish and 23 Czech secondary schools (N = 921; mean age = 16.2 ± 0.7 years). ActiTrainer accelerometers were...