This one seems so sensible that it’s a bit surprising it hasn’t quite caught on in a massive way yet. But employees at Salo in Minneapolis have been doing it for years: walking on a treadmill while working in their cubicles. The University of Minneapolis has just concluded a study on this very phenomenon, and they have determined that a healthy employee is indeed a happy employee.

Treadmill workstations can only reach a maximum of 2 miles per hour, but that’s still enough to keep the body active and increase blood-flow to the brain…which, in turn, makes for a more productive worker. The cost of a single treadmill desk can set an employer back anywhere from $1,000 to $4,000 a pop. But supporters will tell you that the investment will immediately pay for itself in productivity.

Read more about the study here, and share your comments below…from your smartphone while you’re at the gym of course.