Title:

Affordable Human Gait Analysis Using a Virtual Reality-Based Platform [Download]

Authors:

Guzmán, Juan David and Guzmán, Diego Enrique and Rengifo, Carlos Felipe

Index Terms:

Legged locomotion;Velocity measurement;Virtual reality;Stability analysis;Data acquisition;Matlab;Lyapunov methods;Human gait analysis;low cost platform;virtual reality;Unity3D;360 degree video;Lyapunov exponents;local stability

Abstract:

This article presents a low-cost educational platform to teach human gait instability assessment using the Lyapunov exponents. The system consists of a cellphone used to measure the acceleration or angular velocity of human body segments, a head-mounted display device, a second cellphone used to visualize the virtual environment developed in Unity3D, a device used to measure the gait speed, and a MATLAB application for data processing. The proposed platform was tested on ten healthy subjects (33.4±9.1 years) under three walking conditions: (i) in a real-world environment, (ii) in a virtual corridor, and (iii) by adding optical flow perturbations to the virtual environment. A survey conducted in the elective class Automatic Systems of Analysis and Capture of Human Gait at Universidad del Cauca, showed the usability of the proposed platform.

DOI:

10.1109/RITA.2020.3033219

How to cite:

Guzmán, Juan David and Guzmán, Diego Enrique and Rengifo, Carlos Felipe, "Affordable Human Gait Analysis Using a Virtual Reality-Based Platform" in IEEE Revista Iberoamericana de Tecnologias del Aprendizaje, pp. 307-313, Nov. 2020. doi: 10.1109/RITA.2020.3033219