In the pushup video the instructor mentions scapular protraction at the top of the pushup.
I'm confused because I always thought that for exercises like this (such as bench press, etc.), the scapula should be retracted. I've watched a bunch of bench press videos where the always say retract the scapula.
Should the scapula be protracted throughout the whole movement or only at the top? Also what's the reason for protraction instead of retraction?
Thanks!