5 sets of 5 reps

Note: The purpose of box squats is to train proper squat mechanics and also train strength and power (observe how I explode back up from the bench in the video). They remove any momentum so it truly forces your hamstrings and quads to do the hard work. It is also a great modification for people with knee issues. Use a bench or a box and increase weight each set to a heavy weight. You should be able to actually squat more than your usual weight because you are not descending with full range of motion, so get as heavy as possible especially on that last set. The last set should be a struggle. Rest 2 minutes between sets.