
hyperextension (on bench)
RachisPoids du corps

Étape 1: Lie flat on your stomach with your legs extended and your arms by your sides.
Étape 2: Engage your glutes and hamstrings, and slowly lift your upper body off the ground, curling your back upwards.
Étape 3: Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
Étape 4: Repeat for the desired number of repetitions.