How to do Medicine ball Overhead Slam
1- Holding a medicine ball in both hands, stand with your feet shoulder-width apart and your back in a neutral position. Engaging your core, raise the medicine ball above your head, keeping your arms straight and your shoulders aligned with each other.
2- In one powerful movement, drive the medicine ball down toward the floor in front of you, keeping your arms straight, pivoting at your shoulders, and driving the force with your core.
3- Release the ball at the bottom of the downward movement, keeping your shoulders and hips aligned and your legs straight. Ideally, you should drive the ball down hard enough to lift your body off the ground with the momentum generated by the movement. Retrieve the ball and repeat