3 sets x 10 reps
Performing this move on a standard leg-press machine requires a training partner. Using the same form as above, increase the weight by about 20 percent. You should be able to perform at least four reps on your own. By the fifth or sixth rep, however, you'll need assistance pressing the weight up. That's where your partner comes in. He/she will assist you just so much that you can press the weight, and then you'll lower it yourself.