Students at Northeast Elementary Magnet, in Danville, Ill., play around. Fewer than 1 in 5 parents polled said their kids were getting physical education daily. Seth Perlman/AP hide caption

itoggle caption Seth Perlman/AP

Employees at at Salo, a Minneapolis-based financial consulting firm, walk while working on treadmill desks. The firm offers treadmill desks for employee use and encourages an active workplace environment. Salo LLC hide caption

itoggle caption Salo LLC