As Adam Boesel pedals an exercise bike, he sends power to a generator that converts his workout calories into electricity. Across the room in his small eco-friendly gym are half a dozen energy-efficient treadmills. On the roof, solar arrays gather more natural energy.
In Boesel's new gym, people will not only slim their waistlines, they will also shrink their carbon footprint.
Welcome to people-powered exercise for a small planet.
Boesel says the Green Microgym -- which is to open Friday in the eclectic Alberta Arts district of northeast Portland -- is the first fitness center in the country to use solar power as well as human-powered cycling and cardio machines to generate renewable energy.