Originally Posted by
asgelle
You are quite confused. Hydrolysis of ATP is just as much the energy source for type I fibers as it is for type II. If all ATP in a fiber were fully hydrolyzed, that fiber couldn't contract regardless of type.
Not confused at all. Fast twitch is a limited source of energy. The fast twitch tank empties quick.
You want to think the two types are more or less the same. They are not. Again, there is a reason we call them two and not one.