Bruin Bergmeester earns his living the same way many of us do, these days: Sitting on his ass. To counteract his sedentary office lifestyle, he bought himself a treadmill to exercise with at home. But looking out of the window, he realized he'd rather be exercising outside.

While Bergmeester's native Holland is bicycle-crazy, he realized that sitting on a bicycle is still sitting, and he didn't want to sit anymore. So he came up with the idea of this fascinating treadmill bicycle that he calls the Lopifit:

The bike is actually battery-powered, but rigged so that the motion of the belt moving backwards is what triggers the "gas."

We're not sure why Bergmeester didn't just ditch the treadmill and go for a long walk outside, but then the man clearly has an inventor's mind.

He's taking pre-orders for the bike now in the EU and is currently seeking a U.S. manufacturer.