I love deadlifts, but haven't really been doing any squats. Now that I'm trying full squats (ATG front and back), I notice I tend to lean forward excessively. My back isn't quite vertical on the way up, and sometimes it feels like I'm doing a good morning just to finish the squat movement.
I guess the posterior chain is a lot stronger (thank you deadlifts) than the anterior chain, and forward lean (using back & hamstrings to bail you out of a real squat) is just the natural tendency for someone like that.
So, how to correct this? Do you guys know of any good quad "isolation" exercises? (Something to strengthen the "anterior" chain?)