If you really want to pulverize your lower body, introduce some chaos and instability into your workouts to finish the next leg day.
This hard squat from Men's Health Fitness Director Ebenezer Samuel, C.S.C.S. builds up a ton of tension to illuminate your quads, glutes and core absolutely. "They attack a mechanically taxing position," says Samuel. "This drill will force you to find thighs parallel to the ground, which means you'll be a stronger squatter in the long run, as you will develop strength in this position."