Stand between lever handles to sides. Squat down with feet flat and grasp handles to sides.
Lift lever by extending hips and knees to full extension. Pull shoulders back at top of lift if rounded. Return weight by bending hips back while allowing knees to bend forward slightly, keeping back straight and knees pointed same direction as feet. Repeat.
Throughout lift, keep hips low, shoulders high, arms and back straight. Knees should point same direction as feet throughout movement. Exercise can also be performed facing opposite direction, toward fulcrum.