Ok here is the deal. I have had a bad left knee since I was 16ish. Although I have not thought about it much, hearing about people getting knee replacements really scares me, and I do not want to get one when Im older (Im only 22 so Im still young). The knee feels surprisingly good during and after squats, and when my quads get sore, I pretty much do not feel any soreness at all. Plus, I regularly do one legged pistol squats with as much as 50lbs on that leg, and it never bothers me. I can dunk a basketball with my height of 5'10''. Yet, I can't sit in the back seat of a car sometimes because my knee will get extremely sore. During lectures at college, I have to sit in the front or in the aisle because my knee will get extremely tight. Im posting this because Im hoping that I am not a special case and there are others who have the same problem (misery needs company, you know?).
Plus can anyone give me more info on the kinds of people who generally need knee replacement? Like lifters or anyone? Like I said, it really scares me.