exercise ball back extension with hands behind head

How to do this exercise

1. Step:1 Place the stability ball on the ground and lie face down on top of it with your hips resting on the ball.
2. Step:2 Position your feet against a wall or other stable surface for support.
3. Step:3 Cross your arms behind your head, with your hands touching the back of your head.
4. Step:4 Engage your core and slowly lift your upper body off the ball, extending your back until your body forms a straight line from your head to your hips.
5. Step:5 Pause for a moment at the top of the movement, then slowly lower your upper body back down to the starting position.
6. Step:6 Repeat for the desired number of repetitions.