Place one leg in strap so it is positioned above ankle. Step up onto step built on side of apparatus with other foot. Lay torso and waist on bench and grasp handles. Place stepping foot inside of strap, just in front of leg already in strap. Position legs side by side. Feet should be above floor with legs hanging straight down.
Raise lever by extending hips as high as possible with legs nearly straight. Lower legs to original position. Repeat.
Taller individuals may be able to place both legs into strap and position torso on bench without using steps. Some individuals may be able to articulate both through the hips and through the lower back (i.e. lumbar spine), in which case, Erector Spinae also becomes synergist. Movement can be performed without resistance. Lever Reverse Hyper-extension was invented by Louie Simmons of Westside Barbell.