back extension on exercise ball
Instructions
- Place the stability ball on the ground and lie face down on top of it, with your hips resting on the ball and your feet against a wall or other stable surface.
- Position your hands behind your head or crossed over your chest.
- 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 heels.
- Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
- Repeat for the desired number of repetitions.