Knee pain is often caused by issues in the hip, ankle, or foot, not the knee itself.

“Whenever you have knee pain, patella tendonitis which I have forever. I've had bad, bad cases of tendonitis where squatting is very difficult for me. It's not the knee, the knee is literally a hinge joint that there's minor rotation capabilities in the knee but it's a hinge joint. And it's being impacted by the hip and the ankle and the foot, as I said before, how critical the foot is.”