Richard Levy
The prefrontal cortex: from monkey to man
Brain : a journal of neurology
physical education pe school provides opportunity children physically active empirical studies investigated developmental trajectories determinants objective moderate vigorous physical activity mvpa pe classes purpose study examine developmental trajectories determinants mvpa pe lessons young children 812years age primary schools students grades 57 n1202 512 girls recruited 17 elementary schools geneva canton 20122013 percentage time spent accelerometerassessed mvpa regular pe lessons used dependent variable linear mixedmodel analyses revealed boys higher percentage mvpa girls none children reached recommended activity levels ie 50 pe class time spent mvpa b linear decrease percentage mvpa age c higher perceived competence predicted higher percentage mvpa higher perceived competence reduced negative linear effect age among boys among girls percentage pe time spent mvpa reach recommendations made centers disease control prevention decreased 8 12years old boys girls perceived competence appears crucial reduce mvpa decline boys girls