[quote]Ryan P. McCarter wrote:
That One Guy wrote:
Ryan P. McCarter wrote:
Weight training generally causes a shift to a slower-twitch profile.
you got two things wrong here. 1st you got the myth backwards, the myth is that weight training causes muscle fibers to change from slow twitch to fast twitch. Second of all…it’s a myth anyway. you can’t transform muscle fibers from 1 type to another, the only thing is that with different types of training you can increase the volume of a certain muscle fiber type. You’ll have the same percentage of total muscle fibers, but the cross sectional area of one type that you’ve been training to develop, will be greater.
Kiss my ass, I’m not wrong at all. You’re reading too far into my post. If you want to be geeky (which I assume you do), you’re right, muscle fibers can’t change type, but to say they can’t change their characteristics is wrong, and if a type IIb becomes more like a IIa in its makeup and performs like a IIa, it’s a IIa to me, even though it’s still “technically” a IIb.
Secondly, it’s been documented that training of ANY type causes a shift toward a slower profile. The people who have the most fast-twitch fibers are couch potatoes. That’s not to say you can’t eventually alter your profile to be more fast-twitch, but the immediate response is a shift towards efficiency.
…soooo, you’re saying we should all quit lifting right now