How to do medicine ball burpees: Standing with your feet shoulder-distance apart, hold a medicine ball with both hands. Extend the ball up overhead, then slam the ball down on the ground as hard as you can, hinging over and sitting your butt back as you slam. As you hinge over, bend your knees. Place your hands on the ground outside of your feet and jump back into a high-plank position. Keep your body in a straight line. Then, jump your feet back towards the outsides of your hands so that you are squatting. Pick up the ball and press it overhead, extending your body and standing tall.