Originally posted by Got Boost?
You aren't doing a full press then. Bring your knees all the way down to your chest and see how many reps you get. Proper form is far more important to growth that moving alot of weight a few inches.
The only problem with this, is that you have to watch your lower back. If your tail bone or lower back even begins to curl OFF the pads, you're taking a HUGE risk of injuring your back up. So, for people that are flexible enough to "touch their knees to their chest" AND keep the back in a natural arch.... GO FOR IT!! But, I know my body, and I know how far I can go, with 4 plates on each side, or my max. I'm not arguing, just using my knowledge. I DO agree, the more range of motion, the better for the muscles, but you also have to make sense out of your body's abilities.
BTW, we have crappy leg press machines in our gym
, the 45 degree Cybex version is my favorite out of the 4 total versions, and allows the most weight. We can only put 13 plates on each side, but we learned to just balance (place) some plates on the top. Last time (a month ago now) that I was able to go "heavy", I was up to 14 reps, with 6 plates on the top. Next time, my partners and I will be climbing on top of those said plates, and we're all 210-240 lbs.