This challenging triceps press is performed with a medicine ball while lying on a stability ball. To prevent injury, make sure that your head, neck, and shoulders are properly positioned on the stability ball throughout this triceps exercise.
Assume start position as shown by lying on ball.
Make sure your head, neck, and shoulders are supported.
Keep your upper arms still and bend at your elbows to bring medicine ball behind head.
Return to start position and contract your triceps muscle.