Want Bigger Arms, but not Broader Shoulders.
I have thin arms but broad shoulders so I am looking for excercises that will isolate my arm muscles without working on my shoulder muscles at the same time. I am concerned that if i do standing barbell curls then these will just make my shoulders broader at the same time, which is something I don't want. Can you please advice me on excercises that will target my main upper and lower arm muscles without making my shoulders any broader than they are now. Also my shoulders are sightly rounded foward and I have to make an effort all the time to keep them back. Can you please advice on how I could fix that. Thanks for your time.