Virtual reality or cyber-sickness is a serious usability problem. Postural (or balance) instability theory has emerged as one of the primary hypotheses for the cause of VR sickness. In this paper, we conducted a two-week-long experiment to observe the trends in user balance learning and sickness tolerance under different experimental conditions to analyze the potential inter-relationship between them. The experimental results have shown, aside from the obvious improvement in balance performance itself, that accompanying balance training had a stronger effect of increasing tolerance to VR sickness than mere exposure to VR. In addition, training in VR was found to be more effective than using the 2D-based medium, especially for the transfer effect to other non-training VR content.

翻译：虚拟现实或晕动症是一个严重的可用性问题。姿态（或平衡）不稳定理论已成为VR晕动症成因的主要假说之一。本文通过为期两周的实验，观察不同实验条件下用户平衡学习与晕动耐受性的变化趋势，分析二者之间的潜在关联。实验结果表明，除平衡性能自身显著提升外，伴随进行的平衡训练比单纯暴露于VR环境对增强VR晕动耐受性具有更显著的效果。此外，基于VR的训练比基于2D媒介的训练更有效，尤其是在向非训练类VR内容的迁移效应方面。