Did you know that if you exercise you can create electricity? If you pedal on an exercise bike and convert it into electricity you could power a single 60 watt lightbulb. But thyat only if your riding the bike, once you stop the light goes out. And if you have two people pedaling you can power 2 lightbulbs.
so is it possible to create electricity by exercising? YES
is it effective? NOT EVEN CLOSE!