Medicine Ball Crunch on Stability Ball

Intermediate Level of Difficulty

The medicine ball crunch on the stability ball is an intermediate core exercise. This exercise targets the upper abs and uses the medicine ball for added resistance.


Picture of Abdominals


The abdominal muscles (abs) provide movement and support to your core area. The deeper and closer to the spine the particular abdominal muscle is, the more effect over body posture it will have, and this often contributes significantly to a healthy back.

Equipment Used

Picture of Stability Ball

Stability Ball

A stability or exercise ball is a ball constructed of soft elastic and filled with air until firm.Most stability balls range from a diameter of approximately 35 to 85 centimeters (14 to 34 inches).

Picture of Medicine Ball

Medicine Ball

A medicine ball (also known as an exercise ball, med ball, or fitness ball) is a weighted ball roughly the diameter of the shoulders (approx. 14 inches). Medicine balls come in a variety of weights from 2lbs. to 30lbs. and can be made of hard plastic, dense rubber or synthetic leather material.

Exercise Instructions

medicine ball crunch on stability ball - step 1

Step 1

Start in a seated position on the stability ball and hold the medicine ball in both hands above your chest.

medicine ball crunch on stability ball - step 2

Step 2

Crunch up and push the medicine ball 45 degrees upwards towards the ceiling while maintaining constant pressure on the stability ball with your tailbone.

medicine ball crunch on stability ball - step 3

Step 3

Roll your body back down onto the stability ball, stretch out your abs and repeat.