Effects of wearing a head-mounted display during a standard clinical test of dynamic balance
Effects of wearing a head-mounted display during a standard clinical test of dynamic balance
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DOI：
10.1016/j.gaitpost.2021.01.020
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发表时间：
2021-01-29
期刊：
影响因子：
2.4
通讯作者：
Wright, William Geoffrey
中科院分区：
文献类型：
--
作者：
Almajid, Rania;Tucker, Carole;Wright, William Geoffrey
背景资料：随着价格实惠、易于使用的头戴式显示器（HMD）的推出，虚拟现实（VR）在临床环境中的使用有所增加。然而，一些人对HMD对姿势和运动的影响提出了担忧，即使没有虚拟场景的投影，这可能会因年龄而异。研究问题：HMD佩戴如何影响年轻人和老年人的运动学测量？研究方法：12名健康的年轻人和16名老年人参与了两种测试条件：1）没有HMD的TUG和2）具有显示实际环境场景的HMD的TUG（TUGHMD）。因变量是俯仰，偏航，和滚动峰值躯干速度（PTVs）在每个拖船组件，转动节奏，和时间来完成拖船及其组件？站立、转身、行走和站立。结果如下：佩戴头盔显示器降低了所有TUG组件的转弯节奏和俯仰和偏航PTV，降低了SIT-TO-STAND和TURN中的滚转PTV，并增加了所有参与者完成所有TUG组件所需的时间。相对于年轻人，佩戴HMD降低了老年人在SIT TO STAND中的音高PTV。佩戴HMD会影响年轻人和老年人的TUG性能，当HMD用于康复中的VR应用时，应考虑到这一点。重要性：我们的研究结果强调了在临床测试中考虑HMD佩戴的物理影响的重要性，这可能不存在于非可穿戴VR技术中。
Background: The use of virtual reality (VR) in clinical settings has increased with the introduction of affordable, easy-to-use head-mounted displays (HMDs). However, some have raised concerns about the effects that HMDs have on posture and locomotion, even without the projection of a virtual scene, which may be different across ages. Research question: How does HMD wear impact the kinematic measures in younger and older adults? Methods: Twelve healthy young and sixteen older adults participated in two testing conditions: 1) TUG with no HMD and 2) TUG with an HMD displaying a scene of the actual environment (TUGHMD). The dependent variables were the pitch, yaw, and roll peak trunk velocities (PTVs) in each TUG component, turning cadence, and the time to complete the TUG and its components ? SIT-TO-STAND, TURN, WALK, and STAND-TO-SIT. Results: Wearing the HMD decreased turning cadence and pitch and yaw PTVs in all TUG components, decreased roll PTV in SIT-TO-STAND and TURN, and increased the time taken to complete all TUG components in all participants. Wearing the HMD decreased the pitch PTV in SIT-TO-STAND in older relative to younger adults. Wearing an HMD affected TUG performance in younger and older adults, which should be considered when an HMD is used for VR applications in rehabilitation. Significance: Our findings highlight the importance of considering the physical effect of HMD wear in clinical testing, which may not be present with non-wearable VR technologies.