For the Max Jumps, choose an object or spot that is at a height that can only be reached when jumping as high as possible. Once your height is selected begin the exercise by starting in a comfortable standing postion. From there, thrust your arms down as you bend your knees, and then explode up as high as possible till you reach your designated height. Upon returning to the ground, activate your leg muscles to land on the ground as smooth as possible. Repeat the motion several time until you can no longer reach the height you have chosen.
This exercise focuses on the explosive muscle fibers of the leg. Your hamstring and quad muscles are simultaneously working to straighten the leg and propel you upward. Finally, the calf muscles contract to provide an extra boost at the near end of the motion.