Use Power Cushion sit-ups, pelvic tilts, and targeted spinal fitness guides to rebuild the natural S-shaped curve in your lower back and protect joints under load.
Beginning in the mid-1980s, Dr. John S. Scherger led a long-term project to figure out how to train and treat the spine so it could tolerate contact sports and still stay strong. The lower back became the main focus.
The development team included experts like Jennifer Stone and Bob Beeten from the U.S. Olympic Training Center, Dick Smith from York Barbell, and long-time New England Patriots athletic trainer Ron O’Neil. Their challenge was simple but demanding: keep players’ curves deep and powerful instead of watching backs flatten and stiffen as the season went on.
They refined sit-ups, pelvic tilts, and Power Cushion drills so the global lumbar curve and the posture of each individual vertebra could be improved rather than worn down by compression and shear forces.
Players with a deep lower-back curve consistently showed more speed, endurance, and hitting power. When trauma and poor training flattened that curve, discs and joints took more load, nerves were pinched, and performance fell off.
Back posture correctors in this collection are built around one idea: restore and maintain the S-shaped spine so forces are distributed as compression instead of damaging shear. That means healthier discs, looser hamstrings, and more fast-twitch power available for sport.
To dive deeper into the physics and comparisons of good vs. bad posture, explore the full S-shaped spine article and posture graphics.
Category products for building and maintaining the lower-back curve: Power Cushion devices, force applicators, and home-study PDFs based on Dr. Scherger’s spinal fitness research.
A matched set of weighted applicators used over the chest and hip bones to increase leverage during sit-ups and pelvic tilts on the Power Cushion, amplifying muscle tension where it matters most.
Patented training cushion with a central groove and half-circle cutout that supports the lumbar spine while you perform sit-ups and pelvic tilts, helping restore an orthopedically shaped low-back curve.
A detailed PDF guide that shows how to perform sit-ups in a spine-friendly way using the Power Cushion or a rolled sleeping bag, so you can strengthen your core without aggravating back pain.
Progressive Neck Flexion program that can be done with the Neck Shaper or just your hands, designed to build neck strength, bring the head back over the pelvis, and support the S-shaped spine.
Explains the link between spinal curvature and athletic ability, shows how to spot poor posture, and outlines tests and concepts used when selecting and training top-level athletes.
A spinal fitness roadmap that highlights the best core exercises to support Correct Neutral Spine and flags common movements that overload discs or create damaging shear forces.
Step-by-step guide to the spinal twist exercise that helps loosen the spine, improve disc hydration, and prepare the back for rolling over shaper rolls and other posture correctors.
Focuses on the pelvic tilt exercise performed over the Power Cushion or a sleeping bag, strengthening the lower back and improving segmental posture with carefully controlled repetitions.
The Back Posture Correctors collection combines equipment and step-by-step PDFs into a simple sequence: evaluate posture, train the curve with Power Cushion drills, then maintain it with neck and back programs at home.
