Affordable human gait analysis using a virtual reality-based platform

• Juan David Guzmán ^[1] ; Diego Enrique Guzmán ^[1] ; Carlos Felipe Rengifo ^[1]
  1. [1] Universidad del Cauca

     Universidad del Cauca

     Colombia

     
• Localización: Revista Iberoamericana de Tecnologías del Aprendizaje: IEEE-RITA, ISSN 1932-8540, Vol. 15, Nº. 4, 2020, págs. 307-313
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This article presents a low-cost educational platform to teach human gait in stability 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 Unity 3D, 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.