
hyperextension (on bench)
RachisPoids du corps

Étape 1: Position yourself face down on a stability ball with your hips resting on the ball and your feet against a wall for stability.
Étape 2: Place your hands behind your head or cross them over your chest.
Étape 3: Engage your core and slowly lift your upper body off the ball, extending your back until your body forms a straight line.
Étape 4: Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
Étape 5: Repeat for the desired number of repetitions.