Medicine Ball Sit-Up Pass

An easy first partner exercise. Sit facing each other with your feet close together, sit up at the same time, and hand or toss the ball across at the top before you both lower down. Neither person can rest, because the ball has to keep moving. The pace is shared, so nobody gets dragged along. A newer partner can keep the ball close and hand it over, while a stronger one can lean back farther and throw it. A 5 to 8 pound ball is plenty to begin with, after about 10 minutes of easy cardio to warm up. The core work adds up quickly once you are both counting reps out loud.