A. Sit on the floor next to your partner, facing opposite directions, with your knees bent. Sit upright with abdominal muscles contracted tightly. Hold the medicine ball in front of your chest close to your body.
B. Recline to the floor, maintaining a straight spine.
C. Sit up and pass the ball to your partner. Then repeat, having your partner pass the ball to you. Continue the exercise for 30-90 seconds.
Tip: For variety, try facing the same direction and tossing the ball laterally to your partner.
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