https://www.gymnasticbodies.com/forum/topic/27295-proper-push-up-form/
I read this post. It says pushing force are partly generated from back muscle.
Can anyone explain further please? Because I have really weak pressing strength. My retractor, depressor, protraction strength is quite weak I think. I do not know if it is related
Also my right chest muscle always cannot activate much when I do push. I think this is due to my right scapula is winged