Hi, I'm doing my level 2 in gym instructing (bottom of the ladder lol) and I'm trying to pair up muscles with their agonist/antagonist groups.
A couple of questions have come up with this and specifically I want to know what the antagonist is if the delts are the prime mover:
Choice is out of pecs, traps or lats. My guess is the pecs as I was considering the opposite of a lateral raise (delts) to be a low cable fly (pecs).
The other one that got me was the agonist if the pecs are the prime mover, only this time delts aren't an option so the obvious choices are out of:
Lats or traps.
If I'm right in both cases then this means there aren't strict pairings for agonist/antagonist and muscle pairings can overlap on occasions.
Thread: Agonist / Antagonist