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Ross not exactly sure what you are asking but I will take a stab at what I believe you are.

Isolation exercises for the bi's can help change the shape of bi and probably adds a small amount to size. By changing the angle a muscle is hit can add to the shape.

Muscle shape is genetic. I wanted to see what your thought process was. Changing the angle won't change the shape of the muscle.

Genetics is how a muscle anchors etc. On some people the bicep anchors close to the elbow and others it might anchor farther from the elbow. In my case the Biceps anchor (distal end) about 2 fingers above the elbow. The result of this genetic anchor is a lack of natural peak to the biceps when flexed. By using isolation exercises for the outer head, I have been able to increase the peak. Muscles change shape all the time. When we do not exercise the fibers lay flat giving the muscle a flat appearance, when we exercise and fill the muscle they take on a round shape.

The biceps being two muscles laying side by side, if we build up one side ( long head ) more than the other side (short head) then the muscle changes shape (biceps bacillus).


When we build up a small area of a muscle or hit it from a different angle I believe it changes the shape of the muscle. I would suppose it depends on how we define shape

I think it depends on how we define shape. To me, most of what you said has more to do with "size" than "shape". But I agree with everything you said.

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Ross I talked to a couple people today and wanted to return to say I stand corrected. You are correct that my view is really a matter of size, not shape. My brain was viewing this as a change in the shape of the arm, not the individual muscle.

Yeah, but it's splitting hairs. You knew exactly what you were talking about...it was just a matter of semantics.