Koslucher Frank, Haaland Eric, Stoffregen Thomas A
School of Kinesiology, University of Minnesota, Minneapolis, MN, USA.
Exp Brain Res. 2016 Jan;234(1):313-22. doi: 10.1007/s00221-015-4462-y. Epub 2015 Oct 14.
Motion sickness is more common among women than among men. Previous research has shown that standing body sway differs between women and men. In addition, research has shown that postural sway differs between individuals who experience visually induced motion sickness and those who do not and that those differences exist before exposure to visual motion stimuli. We asked whether sex differences in postural sway would be related to sex differences in the incidence of visually induced motion sickness. We measured unperturbed standing body sway before participants were exposed to visual motion stimuli that induced motion sickness in some participants. During postural testing, participants performed different visual tasks. Results revealed that postural sway was affected by visual tasks, consistent with the literature. In addition, we found a statistically significant three-way interaction between visual tasks, sex, and (subsequent) motion sickness status. These results suggest that sex differences in motion sickness may be related to sex differences in the control of postural balance.
晕动病在女性中比在男性中更为常见。先前的研究表明，男女之间的站立身体摇摆存在差异。此外，研究表明，经历视觉诱发晕动病的个体与未经历者之间的姿势摇摆存在差异，并且这些差异在暴露于视觉运动刺激之前就已存在。我们询问姿势摇摆的性别差异是否与视觉诱发晕动病发病率的性别差异有关。在参与者暴露于会使部分参与者产生晕动病的视觉运动刺激之前，我们测量了其无干扰站立时的身体摇摆。在姿势测试期间，参与者执行不同的视觉任务。结果显示，姿势摇摆受视觉任务影响，这与文献一致。此外，我们发现视觉任务、性别和（随后的）晕动病状态之间存在统计学上显著的三因素交互作用。这些结果表明，晕动病的性别差异可能与姿势平衡控制方面的性别差异有关。
