By controlling the natural pronation of the foot, the vertical geometry of the leg is aligned correctly. The internal rotation of the knee and hip is minimized, and those joints are allowed to work as nature intended. No other commercialy available insole/orthotic can make that claim. People with flat feet pay a 30% energy penalty when not using the FlatFoot Insole/Orthotic. This energy savings was demonstrated with a TecScan^TM gait analyzer (results are shown in the image below).

A more efficient use of energy results in increased stamina for anyone spending time on their feet (see testimonials). The insoles/orthotics have been shown to relieve the "target organ" pain in the feet, knees, hips, and even low back.

The computer generated images above demonstrate the transfer of energy from heel strike . Both represent a step taken with the same flat footed person's left foot. Note the wasted energy (the curved line in red/maroon) shown in image A (uncompensated) as opposed to the efficient use of energy (the straight line in red/maroon) shown in image B (compensated with the Flat Foot® insoles), resulting in increased stamina.

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