1
Lie supine on the floor with knees bent, feet flat and hip-width apart. Hold a medicine ball or stability ball with both hands at chest level. Maintain neutral spine position with lower back slightly in contact with the floor.
2
Press the ball firmly against your chest with both hands. Engage your core by drawing your navel toward your spine. Position arms ready to extend forward as you prepare for the crunch movement.
3
Lower the medicine ball by extending your arms forward while simultaneously allowing your torso to move back toward the floor in a controlled manner. Maintain core engagement throughout as your abdominal muscles lengthen under tension.
4
Using abdominal strength, crunch your torso upward while pressing the ball forward and upward. Drive through your core to lift your shoulders off the floor, bringing the ball away from the wall. Return to starting position with controlled movement.