Effect of screen configuration on the neck angle, muscle activity, and simulator sickness symptoms in virtual reality

Work Pub Date : 2024-01-09 DOI:10.3233/wor-230230
Sobhit Pokhrel, Jaejin Hwang
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Abstract

BACKGROUND: There is a lack of information about the optimal setup of multiple screen configurations in virtual reality (VR) office work. OBJECTIVE: The objective of this study was to evaluate the effects of different screen configurations on neck flexion, rotation, neck muscle activity, and simulator sickness symptoms during Virtual Reality (VR) office work. METHODS: Twelve participants (7 males; 21 to 27 years old) performed copy-paste and drag-drop tasks in three different screen configurations (single screen, primary-secondary screen, and double screen) in a randomized order. Optical motion capture system, electromyography (EMG) device, and simulator sickness questionnaire (SSQ) were used to measure the users’ responses. RESULTS: Neck rotation angles, muscle activities, and VR sickness were significantly affected by the screen configurations (p <  0.021). The primary-secondary screen showed the highest right rotation angle (median: -33.47°) and left sternocleidomastoid (SCM) muscle activities (median: 12.57% MVC). Both single (median: 22.42) and primary-secondary (median: 22.40) screen showed the highest value of SSQ. CONCLUSIONS: The screen configurations in VR could be an important design factor affecting the users’ physical demands of the neck and VR sickness symptoms. Asymmetric neck rotations caused by the primary-secondary screen conditions should be avoided.
屏幕配置对虚拟现实中颈部角度、肌肉活动和模拟器病症状的影响
背景:关于虚拟现实(VR)办公室工作中多屏幕配置的最佳设置,目前还缺乏相关信息。目的:本研究旨在评估在虚拟现实(VR)办公过程中,不同屏幕配置对颈部弯曲、旋转、颈部肌肉活动和模拟器晕机症状的影响。方法:12 名参与者(7 名男性;21 至 27 岁)以随机顺序在三种不同的屏幕配置(单屏幕、主-副屏幕和双屏幕)下执行复制粘贴和拖放任务。使用光学动作捕捉系统、肌电图(EMG)设备和模拟器晕机问卷(SSQ)测量用户的反应。结果:屏幕配置对颈部旋转角度、肌肉活动和 VR 晕眩有显著影响(p < 0.021)。主屏-副屏显示出最高的右旋转角度(中位数:-33.47°)和左胸锁乳突肌(SCM)肌肉活动(中位数:12.57% MVC)。单一筛查(中位数:22.42)和主-次筛查(中位数:22.40)均显示 SSQ 值最高。结论:VR 中的屏幕配置可能是影响用户颈部生理需求和 VR 病症状的重要设计因素。应避免主屏-副屏条件造成的不对称颈部旋转。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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