Quote from Thunderdog:
Perhaps I am mistaken, but if the squats are done correctly, I don't think that the knees are at risk. I stopped doing squats a couple of years ago for a different reason, but a few years before that, someone at the gym showed me how to do them properly. For years, I thought I had done them properly but, apparently, I did not. I used to keep my upper body quite perpendicular to the ground, and I would go all the way down. Further, my heels were standing on 10-pound plates. All this I had read in a Weider book several years earlier. And I must admit, that my knees felt it somewhat.
Then, another member at the gym told me to remove the 10-pound plates, and to make sure that when I descended I only do so until my upper and lower legs reach a 90 degree angle, and no further. (In the past, I had always considered that to be a cop-out.) Most importantly, he advised that my knees should not protrude forward beyond the tip of my toes as I descended. That was the key. Doing so requires the torso to move at a forward angle relative to the manner I employed previously. It initially felt odd. However, the majority of the stress I felt was in the quads. Strain on the knees was incidental. Over time, my legs became better developed. Weider's book was wrong. I don't know how power lifters do it, but I am fairly convinced that bodybuilders and weekend warriors such as myself are best served by this approach.
Electric, as I understand it, you are or were a competitive bodybuilder. Please weigh in with your opinion.