The Cyborg Olympics: In Bike Race, Electrodes Jolt Paralyzed Legs Into Action

Mark Muhn is used to watching from his wheelchair as his kids win trophies for their achievements on the sports field. He's been in that wheelchair since 2008, when a skiing accident crushed his spine and left him paralyzed from the chest down. Last Saturday, though, Mark was the one on the podium with a gold medal draped around his neck. "I've watched my kids win, but this time they got to watch me," he says. Muhn won gold at the Cybathlon, the world's first cyborg Olympics, which took place this weekend in a sold-out stadium in Zurich, Switzerland.