A formal walking program for children diagnosed with attention deficit hyperactivity disorder (ADHD) finds that low-intensity walks in an urban park are associated with significantly greater improvement in cognitive function than similar walks in residential or downtown settings. The improvements measured are on par with improvements associated with the most typical medications prescribed for ADHD, and cognitive performance for participants after walking is comparable to the average performance of children who have not been diagnosed with ADHD.
Faber Taylor, A. and Kuo, F.E., 2009. Children with attention deficits concentrate better after walk in the park. Journal of Attention Disorders 12(5): 402-409.