There’s a lot to gawk at at the State Fair of Texas. A 55 foot tall cowboy, towering cones of cotton candy, flashing midway rides that defy gravity. This year, a handful of guys on pogo sticks do that too. Three times a day, the Xpogo demo team does everything from back flips to 7-foot bounds over a limbo pole. It looks cool, sure. The biomechanical breakdown of what these athletes are actually doing is even cooler.