

Muscles worked
spine, glutes, hamstrings
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weighted hyperextension (on stability ball)
Secondary muscles
How to perform it
- 1
Position yourself face down on a stability ball with your hips resting on the ball and your feet against a wall for stability.
- 2
Place your hands behind your head or cross them over your chest.
- 3
Engage your core and slowly lift your upper body off the ball, extending your back until your body forms a straight line.
- 4
Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
- 5
Repeat for the desired number of repetitions.






