After a few years of dealing with an injury, I've started squatting again. However, when I go heavy, my lower body never feels completely stable and I get twinges in the right side of my lower back and right knee. I figure it's probably due to some instability/imbalance so I want to play it safe and incorporate some prehab before I risk another injury that puts me out of the game for another few years. Does anyone have any good info regarding common hip and knee area instabilities and muscle inbalances, how to diagnose them (knee drifts a certain way during certain movements, inflexibility when doing certain stretches, etc.) and how to fix them? Thanks bros.