. >> reporter: the effort jason robard is part of the growing trend to get america's workforce out of their chairs and working. there are six walk stations. workers sign up for one-hour shifts at the treadmill. at no more than two miles per hour, colleagues work on computers and phones. >> i wanted to check in on our project. >> i would think this would be distracting. >> no. >> no? it helps focus your mind? >> it helps focus. sometimes if you're reading e-mails, the clock's ticking in your head and you come up with ideas of a solution that you're working at at your desk. >> reporter: the results, blue cross says, are more productive, engaged, and active workers. >> we're seeing people walking up and down the stairwells, not taking the elevator, much more so than in the past. >> reporter: the only requirement, proper foot wear. for those wondering, is this really necessary? consider this. in 1960, almost half of all american jobs required some kind of moderate physical activity. today, less than 20% do. frightened by studies linking prolonged sitting at work with higher obesity and ca