Physical fitness and activity in schools. American Academy of Pediatrics

Schools are in a uniquely favorable position to increase physical activity and fitness among their students. This policy statement reaffirms the American Academy of Pediatrics' support for the efforts of schools to include increased physical activity in the curriculum, suggests ways in which schools can meet their goals in physical fitness, and encourages pediatricians to offer their assistance. The recommendations in this statement are consistent with those published in 1997 by the Centers for Disease Control and Prevention.(1)

Published by Pediatrics, 2000. The guideline itself is at the source linked here.

doi.org/10.1542/peds.105.5.1156