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首页> 外文期刊>Journal of NeuroEngineering Rehabilitation >A quantitative analysis of gait patterns in vestibular neuritis patients using gyroscope sensor and a continuous walking protocol
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A quantitative analysis of gait patterns in vestibular neuritis patients using gyroscope sensor and a continuous walking protocol

机译：陀螺仪传感器和连续步行方案定量分析前庭神经炎患者的步态

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Background Locomotion involves an integration of vision, proprioception, and vestibular information. The parieto-insular vestibular cortex is known to affect the supra-spinal rhythm generators, and the vestibular system regulates anti-gravity muscle tone of the lower leg in the same side to maintain an upright posture through the extra-pyramidal track. To demonstrate the relationship between locomotion and vestibular function, we evaluated the differences in gait patterns between vestibular neuritis (VN) patients and normal subjects using a gyroscope sensor and long-way walking protocol. Methods Gyroscope sensors were attached to both shanks of healthy controls (n=10) and age-matched VN patients (n = 10). We then asked the participants to walk 88.8 m along a corridor. Through the summation of gait cycle data, we measured gait frequency (Hz), normalized angular velocity (NAV) of each axis for legs, maximum and minimum NAV, up-slope and down-slope of NAV in swing phase, stride-swing-stance time (s), and stance to stride ratio (%). Results The most dominant walking frequency in the VN group was not different compared to normal control. The NAVs of z-axis (pitch motion) were significantly larger than the others (x-, y-axis) and the values in VN patients tended to decrease in both legs and the difference of NAV between both group was significant in the ipsi-lesion side in the VN group only (p=0.03). Additionally, the gait velocity of these individuals was decreased relatively to controls (1.11 ± 0.120 and 0.84 ± 0.061 m/s in control and VN group respectively, p<0.01), which seems to be related to the significantly increased stance and stride time of the ipsi-lesion side. Moreover, in the VN group, the maximum NAV of the lesion side was less, and the minimum one was higher than control group. Furthermore, the down-slope and up-slope of NAV decreased on the impaired side. Conclusion The walking pattern of VN patients was highly phase-dependent, and NAV of pitch motion was significantly decreased in the ipsi-lesion side. The change of gait rhythm, stance and stride time, and maximum/minimum NAV of the ipsi-lesion side were characteristics of individuals with VN.
机译：背景运动涉及视觉，本体感受和前庭信息的整合。众所周知，壁顶前庭皮层会影响脊髓上节律的产生，前庭系统调节小腿在同一侧的反重力肌张力，以通过锥体束外通道保持直立姿势。为了证明运动与前庭功能之间的关系，我们使用陀螺仪传感器和长距离行走协议评估了前庭神经炎（VN）患者和正常受试者在步态模式上的差异。方法将陀螺仪传感器安装在健康对照组（n = 10）和年龄匹配的VN患者（n = 10）的小腿上。然后，我们要求参与者沿着走廊走88.8 m。通过步态周期数据的总和，我们测量了步态频率（Hz），腿各轴的归一化角速度（NAV），最大和最小NAV，摆动阶段NAV的上坡和下坡，步幅-摆动-站立时间（s）和站立步幅比（％）。结果与正常对照组相比，VN组最主要的步行频率没有差异。 Z轴（俯仰运动）的NAV显着大于其他（X轴，Y轴），并且VN患者的双腿均趋于下降，两组之间的NAV差异在ipsi-仅在VN组中病变侧（p = 0.03）。此外，这些人的步态速度相对于对照组有所降低（对照组和VN组分别为1.11±0.120和0.84±0.061 m / s，p <0.01），这似乎与步态和步幅的显着增加有关。 ipsi病变侧。而且，在VN组中，病变侧的最大NAV较小，而最小的是高于对照组。此外，NAV的下坡和上坡在受损侧减小。结论VN患者的行走方式高度依赖相位，并且在同侧病变侧俯仰运动的NAV明显降低。步态节奏，姿势和步幅的变化以及同侧病变侧最大/最小NAV是具有VN的个体的特征。

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