Sit on machine with back on padded support. Place feet on platform. Extend hips and knees. Release dock lever and grasp handles to sides.
Lower sled by flexing hips and knees until knees are just short of complete flexion. Return by extending knees and hips. Repeat.
Adjust safety brace and back support to accommodate near full range of motion without forcing hips to bend at waist. Keep knees pointed same directions as feet. Do not allow heels to raise off of platform, pushing with both heel and forefoot. Placing feet slightly high on platform emphasizes Gluteus Maximus. Placing feet slightly lower on platform emphasizes Quadriceps. See exercise performed on Bilateral Leg Press.