Objectively measured physical activity has a negative but weak association with academic performance in children and adolescents

Aim There is an emerging body of evidence on the potential effects of regular physical activity on academic performance. The aim of this study was to add to the debate, by examining the association between objectively measured physical activity and academic performance in a relatively large sample of children and adolescents. Methods The Spanish UP & DOWN study is a 3‐year longitudinal study designed to assess the impact, overtime, of...