A few of us had a contest in the gym squatting with 92 kg or about 200 pounds. One guy did 30 reps and it went up from there. I ended up doing the most at 75 reps while weighing about 200 pounds. The pain in the traps and shoulders from the bar was almost unbearable. In later attempts the pain by rep 30 was too great to continue. I was 53 at the time.