Orient yourself on the machine, placing your butt, lower back, upper back, and head all firmly in the seat.
Adjust the safety mechanism to determine your desired range of motion, selecting one where 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, unlock the safety mechanism so that the machine can freely move.
Exhale, extending your legs forward and straightening them.
Continue to extend your legs while keeping all body parts firmly in the seat and your feet flatly pressed against the machine until your legs are straight.
Inhale and lower your legs down, allowing them to bend in order to return to the starting position.
Relock the safety mechanism to hold the machine in place so that you can safely exit.