Effects of repeated snowboard exercise in virtual reality with time lags of visual scene behind body rotation on head stability and subjective slalom run performance in healthy young subjects.
Effects of repeated snowboard exercise in virtual reality with time lags of visual scene behind body rotation on head stability and subjective slalom run performance in healthy young subjects.
复制标题
在虚拟现实中重复滑雪板运动以及身体旋转后视觉场景的时间滞后对健康年轻受试者的头部稳定性和主观回转运动表现的影响。
DOI：
10.1080/00016489.2016.1193890
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Takeda N
中科院分区：
文献类型：
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作者：
Wada Y;Nishiike S;Kitahara T;Yamanaka T;Imai T;Sato G;Matsuda K;Kitamura Y;Takeda N
结论在实验3-8中，随着时间延迟的增加，在虚拟现实(VR)世界中进行重复的滑雪板练习后，提示对VR世界中重复的视觉-前庭感觉冲突的适应可以改善真实世界中的动态姿势控制和运动表现，而不会发生运动病。目的应用VR技术，观察在虚拟现实世界中，随着视觉场景和身体旋转之间的时间滞后，重复滑雪板练习对健康受试者头部稳定性和激流回旋跑成绩的影响。在没有时间滞后的VR世界中进行滑雪板练习的试验1和试验2之后，分别以计算机在板旋转后创建的视觉场景的0.1、0.2、0.3、0.4、0.5和0.6 S时间滞后来进行试验3-8。最后，试验9没有时滞地进行。结果与无时滞的试验2相比，试验8的头部线加速度在耳间方向的标准差显著增加，时滞为0.6 S，而试验9无时滞的头部线加速度的标准差显著降低。与无时滞的试验2相比，试验8的激流回旋成绩的主观得分显著降低，时滞为0.6 S，而试验9的成绩显著高于无时滞的试验9。在任何受试者中都没有诱发晕动病。
ConclusionAfter repeated snowboard exercises in the virtual reality (VR) world with increasing time lags in trials 3–8, it is suggested that the adaptation to repeated visual-vestibulosomatosensory conflict in the VR world improved dynamic posture control and motor performance in the real world without the development of motion sickness.ObjectivesThe VR technology was used and the effects of repeated snowboard exercise examined in the VR world with time lags between visual scene and body rotation on the head stability and slalom run performance during exercise in healthy subjects.MethodsForty-two healthy young subjects participated in the study. After trials 1 and 2 of snowboard exercise in the VR world without time lag, trials 3–8 were conducted with 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6 s time lags of the visual scene that the computer creates behind board rotation, respectively. Finally, trial 9 was conducted without time lag. Head linear accelerations and subjective slalom run performance were evaluated.ResultsThe standard deviations of head linear accelerations in inter-aural direction were significantly increased in trial 8, with a time lag of 0.6 s, but significantly decreased in trial 9 without a time lag, compared with those in trial 2 without a time lag. The subjective scores of slalom run performance were significantly decreased in trial 8, with a time lag of 0.6 s, but significantly increased in trial 9 without a time lag, compared with those in trial 2 without a time lag. Motion sickness was not induced in any subjects.