This probably has been discussed to death, apologies if it has, but I'm new here and would love to hear your thoughts on ass to grass squats.
First off, when I did these, I was experiencing knee pain afterwards so I stopped doing it and I have no history of knee injuries, relatively flexible with hip and lumbar area so doing it was no problem. Maybe I was going too heavy. My normal squat weigth is 188 lbs (6-8 reps), ATG weight was only 135.
Is this a case by case thing or is there something to remedy the knee pain?