I'm not entirely sure how to phrase this, but basically I'd like to know the deal with site specific growth.
What I mean is, if you do incline bench, can you 'bring up' your upper chest? If you do a specific type of bicep curl (can't recall the name) can you develop a peak in your biceps? (this sort of thing)
Can you do this sort of site specific growth, or is it genetics that make the determination?
I've read some conflicting stuff on this and quite a bit of bro-science. I'm interested in the scientific as well as the anecdotal.
While you guys are correct, don't you believe that as you hypertrophy and hyperplasia the muscle a bicep's peak, a triceps horse shoe, etc can be "molded" somewhat? You cannot change insertions, but can you not effect the shape?
no amount of lifting will change the shape of a muscle. obviously as it gets bigger the shape becomes more pronounced. everything just gets larger and is easier to see. if you have a full bicep with no peak it's just going to be a bigger bicep with no peak.
True... All you can do is make bigger what you have... You can stress different heads of a muscle to various degrees, easier with those which have very different functions from others or originate/connect at different places... Say, long head of the triceps, the deltoid heads and so on... But you can't actually change the shape of an individual head (like meat said, long and flat biceps stay long and flat no matter how big. You can bring up the brachialis to push them up a little in some poses, but that still won't change the shape or length of your bicep heads and won't give you a peak like Arnold's...)