I realize it's long accepted gym knowledge that pullovers work the serratus muscles. But what I would like to know is, from a kinesiology standpoint, how is this so? I mean, the basic movement of the serratus is to protract the scapulae, right? The only way I could imagine the serratus being activated is if the shoulders are elevated off the bench in the final position of the pullover. Even then, the inferior portion of the scapulae seems to actually retract. If you ask me, the pec minor and the rhomboids would be worked more during a pullover. In fact, the reverse motion of a pullover, a front raise, would actually work the serratus effectively.
So, is it really just a gym myth or what??