Position yourself on a lever back extension machine with your feet secure and hips against the pad. Grip the handles and brace your core. Slowly bend forward at the hips while keeping your back neutral, lowering your upper body toward the floor. Pause briefly at the bottom of the movement, then contract your lower back and glutes to raise your torso back up until your body forms a straight line.
Log your lever back extension sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.