Sit on the machine with your back against the cushion and adjust the machine you are using so that your knees are at a 90 degree angle at the starting position.
Raise the weight by extending your knees outward, then lower your leg to the starting position. Both movements should be done in a slow, controlled motion.
Place your legs on the platform with your feet at shoulder width.
Release the weight and extend your legs fully, without locking your knees.
Lower the weight until your legs are at a 90° angle (but DO NOT allow your butt and lower back to rise off of the pad. This will put your lower back in a rounded position, which is very dangerous.)
Sit on the machine with your back against the cushion and adjust the machine you are using so that your knees are at a 90 degree angle at the starting position.
Raise the weight by extending your knees outward, then lower your leg to the starting position. Both movements should be done in a slow, controlled motion.