Browsing by Author "Rojo Agustí, Ana"
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- Accuracy study of the Oculus Touch v2 versus inertial sensor for a single-axis rotation simulating the elbow’s range of motion
2022 Virtual reality (VR) has emerged as a valid addition to conventional therapy in rehabilitation and sports medicine. This has enabled the development of novel and affordable rehabilitation strategies. However, before VR devices can be used in these situations, they must accurately capture the range of motion of the body-segment where they are mounted. This study aims to state the accuracy of the Oculus Touch v2 controller when used to measure the elbow’s motion in the sagittal plane. The controller is benchmarked against an inertial sensor (ENLAZA), which has already been validated as a reliable measurement device. We have developed a virtual environment that matches both the Oculus Touch v2 and the inertial sensor orientations using a digital goniometer. We have also collected the orientation measurements given by each system for a set of 17 static angles that cover the full range of normal elbow flexion and hyperextension motion, in 10° intervals from − 10° (hyperextension) to 150° (flexion). We have applied the intra-rater reliability test to assess the level of agreement between the measurements of these devices, obtaining a value of 0.999, with a 95% confidence interval ranged from 0.996 to 1.000. By analyzing the angle measurement outcomes, we have found that the accuracy degrades at flexion values between 70° and 110°, peaking at 90°. The accuracy of Oculus Touch v2 when used to capture the elbow’s flexion motion is good enough for the development of VR rehabilitation applications based on it. However, the flaws in the accuracy that have been revealed in this experimental study must be considered when designing such applications.
- Design, development, and validation of interactive platforms for functional rehabilitation of people with motor disabilities
2023-06-15 Los tratamientos convencionales para las personas con deterioro motor comprenden una combinación de fisioterapia, ortopedia y terapia ocupacional. En términos de motivación, las terapias tradicionales presentan dos inconvenientes principales: la monotonía del ejercicio y la falta de estímulos interesantes para el paciente que aumenten su motivación. Para mitigar este problema se han desarrollado soluciones gamificadas específicas para esta demanda. El objetivo de esta tesis es la creación de dos plataformas que permitan la realización de actividades físicas de rehabilitación de miembro superior e inferior. Estos dos sistemas desarrollados tendrán como fin la mejora de la movilidad y funcionalidad de las personas con patologías neurológicas o discapacidades motoras y adherencia al entrenamiento físico promovido por el sistema gamificado. El objetivo general que engloba ambos sistemas es la promoción de la adherencia y motivación del usuario al entrenamiento físico para agilizar o mantener el proceso de rehabilitación funcional de la extremidad correspondiente. Cada plataforma se ha desarrollado utilizando distintos dispositivos de realidad virtual de acuerdo con los requisitos de diseño de la actividad física a realizar, el modo de uso, el sistema de análisis de movimiento y la arquitectura del sistema.