1) Sit in upright position on flexaball with feet flat on floor.
2) Walk feet forward allowing flexaball to roll underneath body until it is positioned on lower to mid-back region. Raise hips slightly to create a “table top” position parallel to floor.
3) Hold medicine ball above your head with your arms semi-straight.
4) Leading with the chin and chest towards the ceiling, contract the abdominal and raise shoulders up.
Now throw the ball to your partner as you crunch up.
5) Stay up until your partner throws the ball back and then return to start position.
6) Remember to keep head and back in a neutral position.
