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Actually. . . YOU CAN!
We can shape our muscles to a certian degree depending on our genetic limits. And there is scientific evidence to support this.
IMO it is possible to train the "inner" chest and the "upper/lower" abdominals.
Now yes i know there is no inner/outer chest and that there is only a upper/lower chest, BUT you can train the inner part of your chest by preforming certin exercises which rip more muscle firbes towards the centre of your chest.
Here is some scientific proof. (with refrences)
Now you probally think that muscle fibres span the entire length of a muscle, as one single muscle fibre? Well your incorrect.
Muscle fibres DO NOT span the entire length of a muscle, as one single muscle fibre.
Muscle fibers are actually segmented and joined with other muscle fibers/segments to form a long ensemble that will eventually link both attachments together.
Each strip/segment of a muscle fiber is selectively linked to its own set of motor axons. This means that not only are muscle fibers really divided into shorter segments aligned in series, BUT THAT EACH SEGMENT HAS ITS OWN SOURCE OF ACTIVATION.
Therefore it is possible to train the "inner" chest. By perfoming certin exercise which cause greater stress towards the inner chest, Now you cannot fully isolate the inner chest but depending on the exercise you can "emphasize" the inner chest.
Just like many people believe that the rectus abdominus is one muscle (which is correct) and that it is activated equally when you contract it (which is incorrect!)
We can shape our muscles to a certian degree depending on our genetic limits. And there is scientific evidence to support this.
IMO it is possible to train the "inner" chest and the "upper/lower" abdominals.
Now yes i know there is no inner/outer chest and that there is only a upper/lower chest, BUT you can train the inner part of your chest by preforming certin exercises which rip more muscle firbes towards the centre of your chest.
Here is some scientific proof. (with refrences)
Now you probally think that muscle fibres span the entire length of a muscle, as one single muscle fibre? Well your incorrect.
Muscle fibres DO NOT span the entire length of a muscle, as one single muscle fibre.
Muscle fibers are actually segmented and joined with other muscle fibers/segments to form a long ensemble that will eventually link both attachments together.
Each strip/segment of a muscle fiber is selectively linked to its own set of motor axons. This means that not only are muscle fibers really divided into shorter segments aligned in series, BUT THAT EACH SEGMENT HAS ITS OWN SOURCE OF ACTIVATION.
Therefore it is possible to train the "inner" chest. By perfoming certin exercise which cause greater stress towards the inner chest, Now you cannot fully isolate the inner chest but depending on the exercise you can "emphasize" the inner chest.
Just like many people believe that the rectus abdominus is one muscle (which is correct) and that it is activated equally when you contract it (which is incorrect!)
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