The backbend stretch feels really good right after you do abdominal crunches because by bending backward on the exercise ball, you stretch your muscles in the opposite direction, reversing the motion of the crunch. This exercise focuses on working the lower body and also releases any tensions in your back that may have built up.
Lying face up, drape your body over the ball.
Keep your knees bent and your feet flat on the floor.
Open your arms out to your sides in an airplane position.
Extend your legs in front of you, rolling the ball out slightly. Keep your eyes staring straight up at the ceiling to keep your head from relaxing down too far toward the ground.
Drop your hips and bend your knees to come back down into the starting position.
Complete 10 repetitions. Rest between each repetition so you don’t get dizzy from your head being lower than your body.