PHOTOS: Walking It Off at Work

Levine first tried out the machines on his staff at the Mayo Clinic. The clinic built the "office of the future" based on Levine's idea of the importance of incorporating movement into the work day. "Support from the Mayo clinic was unbelievable. People at Mayo said this is very important," Levine said. "They literally assigned 50 to 60 builders to do this, night and day. I would show up at three in the morning, people would be there painting walls, designing desks." (Mayo Clinic)