FPI - Foot Posture Index
The Foot Posture Index (FPI) is a diagnostic clinical tool aimed at quantifying the degree to which a foot can be considered to be in a pronated, supinated or neutral position. It is intended to be a simple method of scoring the various foot posture into a single quantifiable result. The user attaches a score to a serie of observations that are routinely used. Features commensurate with an approximately neutral foot position are graded as zero, while pronated postures are given a positive value, and suplinated features a negative value.