A gait analysis using optical motion capture system with large scale pressure sensor

Abstract

A motion capture system with force platforms is a popular method for gait analysis. However, one of our authors, Maeda suggested a force platform free gait analysis (Maeda 2016, Maeda 2017). He proposed that if the center of pressure on the ground was provided, his proposed method can estimate both the joint force/torque and the ground reaction force with high accuracy In this study, the center of pressure was obtained by a large scale pressure sensor carpet (“JUTAN^TM”, Nissha Printing Co.,Ltd.) during walking. The purpose of this study was to examine our force platform free gait analysis using the optical motion capture system with the large scale pressure sensor. The result showed that joint torque can be estimated with satisfactory. Therefore, our force platform free gait analysis can be adopted at any place, such as stairs, rough terrain, etc.