An impact on the scapula to do push-ups do?

I have done 4 months push-ups, although Zhuang a point, but I found the back of the shoulder blade stuck out as if the point than ever before.

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Lou Zhu Zhuang say this is a point, and then obviously it is a muscle, and doing push-ups when the muscles are not back at the top followed by movement Well.

In addition, Lou Zhu said that the outward convex? Or look inside trap? I do not quite understand what stuck out the concept.

I personally feel that the muscles do push-ups should be out the back convex, I still remember the muscular Schwarzenegger muscles show it, nor indeed that part of the back shoulder blade muscles is uplift.

action will not affect the right