Can you walk, chew gum and type at the same time? If you can do all three, you're eligible for a work treadmill.

Desk jockeys jump on their treadmill horse each morning and proceed to type, jaw on the phone and participate in meetings/conference calls as their feet keep moving. Mayo research shows you can burn 100-130 calories an hour work-walking at speeds less than two mph. Not exactly a sweaty gallop, slow and steady wins this race.

I'd hardly call work-walking mainstream, only 335 Walkstations -- about $4,000 a crack -- have sold nationwide since last November. However, work-at-home desk jockeys slap together more affordable homemade contraptions with a little ingenuity. Check out the pics of original set-ups over at this on-line social network for office walkers, and read office walkers blogging about their daily strolls here and here. What about you? Would you try work-walking?