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Feasibility of a walking virtual reality system for rehabilitation: objective and subjective parameters

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Feasibility of a walking virtual reality system for rehabilitation: objective and subjective parameters

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dc.contributor.author Borrego, Adrián es_ES
dc.contributor.author Latorre Grau, Jorge es_ES
dc.contributor.author Llorens Rodríguez, Roberto es_ES
dc.contributor.author Alcañiz Raya, Mariano Luis es_ES
dc.contributor.author Noé, Enrique es_ES
dc.date.accessioned 2020-09-18T03:35:12Z
dc.date.available 2020-09-18T03:35:12Z
dc.date.issued 2016-08-09 es_ES
dc.identifier.issn 1743-0003 es_ES
dc.identifier.uri http://hdl.handle.net/10251/150327
dc.description.abstract [EN] Background: Even though virtual reality (VR) is increasingly used in rehabilitation, the implementation of walking navigation in VR still poses a technological challenge for current motion tracking systems. Different metaphors simulate locomotion without involving real gait kinematics, which can affect presence, orientation, spatial memory and cognition, and even performance. All these factors can dissuade their use in rehabilitation. We hypothesize that a marker-based head tracking solution would allow walking in VR with high sense of presence and without causing sickness. The objectives of this study were to determine the accuracy, the jitter, and the lag of the tracking system and its elicited sickness and presence in comparison of a CAVE system. Methods: The accuracy and the jitter around the working area at three different heights and the lag of the head tracking system were analyzed. In addition, 47 healthy subjects completed a search task that involved navigation in the walking VR system and in the CAVE system. Navigation was enabled by natural locomotion in the walking VR system and through a specific device in the CAVE system. An HMD was used as display in the walking VR system. After interacting with each system, subjects rated their sickness in a seven-point scale and their presence in the Slater-Usoh-Steed Questionnaire and a modified version of the Presence Questionnaire. Results: Better performance was registered at higher heights, where accuracy was less than 0.6 cm and the jitter was about 6 mm. The lag of the system was 120 ms. Participants reported that both systems caused similar low levels of sickness (about 2.4 over 7). However, ratings showed that the walking VR system elicited higher sense of presence than the CAVE system in both the Slater-Usoh-Steed Questionnaire (17.6 +/- 0.3 vs 14.6 +/- 0.6 over 21, respectively) and the modified Presence Questionnaire (107.4 +/- 2.0 vs 93.5 +/- 3.2 over 147, respectively). Conclusions: The marker-based solution provided accurate, robust, and fast head tracking to allow navigation in the VR system by walking without causing relevant sickness and promoting higher sense of presence than CAVE systems, thus enabling natural walking in full-scale environments, which can enhance the ecological validity of VR-based rehabilitation applications. es_ES
dc.description.sponsorship The authors wish to thank the staff of LabHuman for their support in this project, especially José Miguel Martínez and José Roda for their assistance. This study was funded in part by Ministerio de Economia y Competitividad of Spain (Project NeuroVR, TIN2013-44741-R and Project REACT, TIN2014-61975-EXP), by Ministerio de Educacion y Ciencia of Spain (Project Consolider-C, SEJ2006-14301/PSIC), and by Universitat Politecnica de Valencia (Grant PAID-10-14). es_ES
dc.language Inglés es_ES
dc.publisher Springer (Biomed Central Ltd.) es_ES
dc.relation.ispartof Journal of NeuroEngineering and Rehabilitation es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Virtual reality es_ES
dc.subject Walking es_ES
dc.subject Motion tracking es_ES
dc.subject Presence es_ES
dc.subject Ecological validity es_ES
dc.subject.classification EXPRESION GRAFICA EN LA INGENIERIA es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.subject.classification INGENIERIA TELEMATICA es_ES
dc.title Feasibility of a walking virtual reality system for rehabilitation: objective and subjective parameters es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1186/s12984-016-0174-1 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-10-14/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TIN2013-44741-R/ES/REALIDAD VIRTUAL PARA LA COMPRENSION Y LA PROMOCION DE LOS MECANISMOS NEURALES DE INTERACCION Y REHABILITACION/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TIN2014-61975-EXP/ES/REHABILITACION DE ESTADOS ALTERADOS DE CONCIENCIA EN FASE TEMPRANA/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MEC//SEJ2006-14301/ES/NUEVAS TECNOLOGIAS DE LA INFORMACION Y LA COMUNICACION: INTEGRACION Y CONSOLIDACION DE SU USO EN CIENCIAS SOCIALES PARA MEJORAR LA SALUD, LA CALIDAD DE VIDA Y EL BIENESTAR./ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Gráfica - Departament d'Enginyeria Gràfica es_ES
dc.description.bibliographicCitation Borrego, A.; Latorre Grau, J.; Llorens Rodríguez, R.; Alcañiz Raya, ML.; Noé, E. (2016). Feasibility of a walking virtual reality system for rehabilitation: objective and subjective parameters. Journal of NeuroEngineering and Rehabilitation. 13:1-9. https://doi.org/10.1186/s12984-016-0174-1 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1186/s12984-016-0174-1 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 9 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.identifier.pmid 27503112 es_ES
dc.identifier.pmcid PMC4977644 es_ES
dc.relation.pasarela S\316855 es_ES
dc.contributor.funder Ministerio de Educación y Ciencia es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
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