The effect of foot orthoses with different manufacturing methods on gait in healthy individuals

Abstract

[Purpose] The purpose of this study was to investigate whether foot orthoses manufactured immediately (FMI) would be as effective as foot orthoses manufactured by prosthetist and orthotist (FMPO) in the gait of healthy adults. [Methods] Spatio-temporal factors, kinematics, kinetic factors, and plantar pressure were measuredin15healthyindividuals while gait at a comfortable speed using a three-dimensional motion analysis device and a plantar pressure distribution measurement device. The measurement conditions were wearing a flat insole (CTL), FMPO, and FMI. [Results] The results showed that the maximum plantar pressure (PP) at the heel was significantly decreased in the FMPO and FMI conditions compared to the CTL condition. The midfoot PP and pressure time integral were significantly increased in FMPO and FMI compared with CTL, and FMPO was significantly increased than FMI. The COP lateral excursion was significantly decreased in FMPO and FMI compared to CTL. [Conclusion] The results of midfoot PP, PTI,and COP lateral sway width suggested that the FMI had a similar function as the FMPO in supporting the medial longitudinal arch and decreasing COP lateral sway width.