Any one know how to get your inner side of your pecs
I just posted this in another thread asking about the "inner" pec.
The fibers in the pectoral muscles run latitudinally. Therefor, you cant selectivly develop your "inner" or "outer" chest. The stimulation on the pectoral fibers will develop from one end to the other. Genetics plays the biggest factor in the shape of you pectorals (or any muscle). Just focus on developing your chest to the maximum natural potential.
If you are concerned about upper or lower pectorals, there are some compartmental divisions that allow you to stimulate your upper chest more so than your lower chest, for example.
For most trainees a bigger concern should be to just develop their entire chest versus worrying about shaping it.