Physical Activity Yields Better Academic Performance in Children

Probably.

The evidence for a relationship between physical activity and academic performance is not conclusive. A review by Trudeau and Shephard in the February 25, 2008, issue of the International Journal of Behavioral Nutrition and Physical Activity found a positive link between physical activity and academic performance, based on cross-sectional studies. A review by Taras in the August 2005 issue of the Journal of School Health reported possible acute benefits of physical activity on academic performance.

Especially real competitive activity as opposed to the everyone-is-a-winner activity.