Facing the machine, place your feet under the lower foot bar. Rest your pelvis on the upper bar, put your hands behind your neck and your elbows in a straight aligned with your chest. While keeping the buttocks, abdomen and leg muscles tense, lower your upper body towards the ground. Keep your back straight and your neck long at all times. Slowly return to the initial position. Repeat.
Strengthening of the back and abdomen muscles.