It sounds like something you'd only see on the Discovery Channel:
people pedaling ferociously to create enough energy to power the
television, stereo and lights. Launched last week, his "human-powered" gym  (The Green Micro Gym) is one of few fitness
centers in the world that runs on power generated by people working out. The goal is to generate 100% of the electricity used in the Gym. With my workout routine that would be peanuts...