VR devices have recently been actively promoted as tools for knowledge workers and prior work has demonstrated that VR can support some knowledge worker tasks. However, only a few studies have explored the effects of prolonged use of VR such as a study observing 16 participant working in VR and a physical environment for one work-week each and reporting mainly on subjective feedback. As a nuanced understanding of participants' behavior in VR and how it evolves over time is still missing, we report on the results from an analysis of 559 hours of video material obtained in this prior study. Among other findings, we report that (1) the frequency of actions related to adjusting the headset reduced by 46% and the frequency of actions related to supporting the headset reduced by 42% over the five days; (2) the HMD was removed 31% less frequently over the five days but for 41% longer periods; (3) wearing an HMD is disruptive to normal patterns of eating and drinking, but not to social interactions, such as talking. The combined findings in this work demonstrate the value of long-term studies of deployed VR systems and can be used to inform the design of better, more ergonomic VR systems as tools for knowledge workers.

翻译：近期，VR设备被积极宣传为知识工作者的工具，已有研究表明VR能够支持部分知识工作任务。然而，仅有少数研究探讨了长时间使用VR的影响，例如一项为期一周的观察实验，让16名参与者在VR和物理环境中各工作一周，主要报告了主观反馈。由于目前仍缺乏对参与者在VR中的行为及其随时间演变的精细理解，我们报告了对先前研究中获取的559小时视频素材的分析结果。研究发现：（1）五天内，与调整头显相关的动作频率减少了46%，与支撑头显相关的动作频率减少了42%；（2）五天内，头显被摘除的频率降低了31%，但每次摘除持续时间延长了41%；（3）佩戴头显会干扰正常的饮食模式，但不会影响社交互动（如交谈）。本研究的综合发现展示了长期部署VR系统研究的价值，可用于指导设计更优、更符合人体工学的VR系统，使其成为知识工作者的有效工具。