Of all of the exhibits at this year's NextFest, the most powerful was arguably Otto Bock Healthcare's C-Leg system. While There's a lot to be said for the joy of watch a Keepon or Robokind, it's hard to argue with the real world application's of this bionic piece of prosthesis.

The leg contains a microprocessor that measures angles and force at a rate of up to 50 time a second. And while many of the exhibits at the show were still in prototype phase, C-Leg has already proven itself outside.

In fact, the gentlemen who explained the device to me was an amputee himself, wearing one on each leg, and as he walked around to demonstrate its effectiveness, swearing up and down by the prosthetic limb.

Check out the video, after the jump.