Performing the: A Step-by-Step Tutorial One Arm Slam
Raise the ball above your head, extending your arm fully, while keeping your core engaged and your back straight.
In a swift and controlled motion, slam the ball down onto the ground as hard as you can, bending at the waist and knees, and following through with your arm.
After the ball hits the ground, catch it on the rebound, if possible, or pick it up quickly if it doesn't bounce back.
Repeat this action for the desired number of repetitions, then switch to the other arm and do the same.