Place rear torso against back pad of the machine and hook your shoulders under the shoulder pads if provided. Place legs in close stance and hand on handle bars. Push your legs back to unlock safety bars. Inhale as you lower the unit by bending your knees with good posture to just below 90 degrees. Exhale as you raise the unit pushing through heels, do not lock your knees. Repeat this movement for all reps. Re-lock safety bars and dismount.