Originally Posted by Off Road
So, let me see if I have this straight...
He is saying that narrow stance squats work the quads effectively but not so much the posterior. Wide stance squats work the quads just as effectively as the narrow stance but have the added benefit of also being effective for the posterior. Therefore you should work with a wide stance because it will help with both wide and narrow movements.
Did I understand it correctly?
That's pretty much it. He's basically saying that wide stance makes you stronger both in that movement but also on a narrow stance and jumping and punching and kicking.