Orient yourself on the machine, placing your butt, lower back, upper back, and head all firmly in the seat.
Adjust the machine so that your thighs make at least a 90º angle with your lower legs.
With your hands gripping the side bars, feet parallel to each other shoulder-width apart and toes pointed slightly outward exhale and press forward, extending your legs.
Continue until your legs straighten out in front of you while making sure you stay firmly in the seat.
Inhale and draw your legs back, returning to the starting position.