Stand tall with your feet hip-width apart.
Hold a medicine ball with both hands in front of you.
Keep your spine neutral and gently engage your deep abdominal muscles.
Slowly begin to draw a large circular motion with the medicine ball in front of your body, moving it around in a controlled arc.
The ball should travel in front of your chest, over to one side, up overhead, across to the other side, and back down in front — like you are tracing a full circle.
Keep your eyes on the ball throughout the entire movement.
Perform the circle in one direction for a set number of repetitions.