Alapakkam Govindarajan Mrityunjaya A, Archambault Philippe S, Laplante-El Haili Youri
School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada.
Interdisciplinary Research Center in Rehabilitation, Jewish Rehabilitation Hospital Laval, Quebec, Canada.
J Rehabil Assist Technol Eng. 2022 Feb 24;9:20556683211067174. doi: 10.1177/20556683211067174. eCollection 2022 Jan-Dec.
Virtual reality (VR) simulators can help train manual wheelchair skills. Transfer of skills from the virtual to the real world may depend on the sense of presence, or of being "in" the virtual environment.
To compare 1) the usability (in terms of performance, overall experience, and satisfaction), as well as 2) the sense of presence, in a wheelchair simulator with two display conditions: a head-mounted display (HMD) or a computer monitor.
Sixteen healthy adults practiced in the wheelchair simulator, first with a computer monitor display and then with an HMD. Task performance, cybersickness, presence, and overall experience in VR were assessed.
Four of the participants were unable to complete all tasks in the HMD condition. When comparing the two display conditions, performance was the same, except for one task (bathroom) which took longer with the computer monitor. The HMD condition was rated as significantly higher in terms of sense of presence and VR experience but provoked more intense symptoms of cybersickness.
Use of an HMD increased symptoms of cybersickness, with small gains in wheelchair performance. Thus, the use of an HMD may be warranted for the training of wheelchair skills, if tolerated by participants.
虚拟现实（VR）模拟器有助于训练手动轮椅技能。技能从虚拟世界向现实世界的迁移可能取决于临场感，即身处虚拟环境中的感觉。
比较1）在两种显示条件下，即头戴式显示器（HMD）或电脑显示器，轮椅模拟器的可用性（从性能、总体体验和满意度方面），以及2）临场感。
16名健康成年人在轮椅模拟器中进行练习，先使用电脑显示器显示，然后使用HMD。评估任务表现、晕动症、临场感和VR总体体验。
4名参与者无法在HMD条件下完成所有任务。比较两种显示条件时，除了一项任务（浴室）使用电脑显示器用时更长外，表现相同。HMD条件在临场感和VR体验方面的评分显著更高，但引发了更强烈的晕动症症状。
使用HMD增加了晕动症症状，在轮椅性能方面有小幅提升。因此，如果参与者能够耐受，使用HMD可能适用于轮椅技能训练。
