System Rx Technology
System Rx History
System Rx evolved through a study of the mathematical relationships between the
shape of the foot as it rests in its neutral position and the resulting shapes of orthotics prescribed by foot care providers. These relationships are usually achieved by technicians trained in the art of Biomechanics. Mathematically, the foot is a measurable blend of three dimensional shapes. Imagining the foot as its length, width, and arch heights allows us to mathematize the shapes of orthotics as well, simplifying the "art of Biomechanics."
Further study of over 133,000 pairs of orthotics shows that certain foot shapes are
used much more often than others. Of the thousands of shapes in the system, 99 shapes occurred 70% of the time. Most feet fall into a relatively small range of measurable dimensions. For example, most heel widths range form 40mm to 77mm, medial arches at their apex along the 1st metatarsal shaft range from 14mm to 23mm in height, and foot length from the posterior heel to the bisection of the 1st metatarsal head range from 118mm to 208mm (shoe sizes 1 – 15).
Click here to download the sizing chart.
System Rx Shells are these 99 shapes injected molded polypropylene sport orthotics available in 4 rigidities; Flexible, Semi-Flexible, Rigid-Flex, Semi-Rigid.
System Rx Shells are the new standard for consistent quality orthotics. Check out our System Rx Products available below!