Bounding is an exaggerated running motion and it really helps to strengthen your legs individually, and helps build up your stabilizer muscles. They are great for improving your single leg jumping ability as well as your speed and running form. Each time you jump off a foot really try to push yourself to go as far out as you can. Like most vertical jump workouts, you are only going to get out what you put into the workout. So really focus on your technique and challenge yourself to give your best effort on each individual jump.