In his research, Dr. Pryce studied 60 patients with flat feet. He placed the foot in the corrected position in mid-stance, the position that locks the midtarsal joint, and made a plaster cast. Images to the left show that this position moves the ankle to the normal vertical position and brings the forefoot off the ground.

Plaster molds made from the castings revealed that every foot belonging to both sexes, long or short, wide or narrow, all looked exactly the same. There was a constant occurring characteristic shape that all people with flat feet share. Dr. Pryce realized that an insole could be developed to keep the mid-foot in supination and compensate the anatomic deficiency in the forefoot so that a flat footed person could move through the gait cycle normally.

The Flat Foot® Insole is the only product in the world that correctly compensates flat feet.

Basically, gait is divided into three phases, heel strike, mid-stance, and toe-off. The foot is a dual-purpose organ. It must serve first as a soft, supple organ of shock absorption, and then change into a stiff organ to serve as a rigid lever to toe-off. These two functions are diametrically opposite. When the heel strikes the ground, all feet, whether they are flat or not, are pronated. The bottom of the foot is slightly turned out and the ankle is slightly leaned in (as shown to the right). During mid-stance, the mid-tarsal joint supinates and the foot locks changing the foot from the soft supple form to the rigid form.

People with flat feet have a constantly recurring deformity in the forefoot that does not allow the mid-foot and the forefoot to act independently of each other. When the mid-foot supinates, the entire medial border of the foot comes off the ground. The only way the person with flat feet can perform the toe-off function is to unlock the mid-tarsal joint and pronate the foot. This changes the foot back to the soft, supple organ. It is an ineffective lever for toe-off.

The Flat Foot® Insole compensates the forefoot deformity, allowing the foot to properly lock, saving necessary energy and making the foot more efficient. Secondarily, by properly rotating the knee and hip, it reduces the stresses caused in the higher joints by aligning the vertical geometry as Nature intended. Unless an insole or orthotic performs this vital function, it will not work.

The patented technology of the Flat Foot® Insole is the only insole anywhere that performs this vital function. Dr. Pryce, after wearing Flat Foot® Insoles in his own shoes for over eight years, firmly believes that it relieves the stresses in the other joints in the leg. He also believes that people that wear the insoles may eliminate the possibility of having total joint surgery later in life.

Prior to Dr. Pryce's development of the Flat Foot® Insole, the only option for patients with flat feet had been commercially available arch supports that do not properly compensate the flat foot, cushion insoles, expensive custom orthotics or surgery. People sought out many remedies for their foot pains, none that properly compensated the flat foot.

Old Style Orthotic

Objects Found in Shoe

This is a new, exciting discovery for that segment of the population that suffers with their feet. Dr. Peter Edwards, an Orthopedic Surgeon in Columbus, Ohio, published an article in October 97 Biomechanics Magazine. He postulated correctly that a pronated or flat foot pre-stresses the Anterior Cruciate Ligament, making people with flat feet more prone to a devastating Anterior Cruciate Ligament injury. He suggested that people that play sports should have a pronation control device in their shoe.

The Flat Foot® Insole is the answer. It is the only device that correctly compensates a flat foot. Podiatrists, Orthopedic Surgeons, Pedorthists, and Physical therapists have been taught for over 40 years that the problem with flat feet lies in the hind foot. Dr. Pryce, with his research, has defined a radically different, and anatomically correct description of the deformity present in every flat foot.

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