Gait analysis of people walking on tactile ground surface indicators
Gait analysis of people walking on tactile ground surface indicators
复制标题
人们在触觉地面指示器上行走的步态分析
DOI：
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发表时间：
2005
影响因子：
4.9
通讯作者：
H. Fujimoto
中科院分区：
文献类型：
--
作者：
Y. Kobayashi;T. Takashima;M. Hayashi;H. Fujimoto
安装在人行道上的触觉地面指示器帮助视障人士安全行走。视力受损者通过步入其凸形并跟随它们来区分指示器。然而，这些指标有时会导致非视力受损者绊倒。本研究探讨这些指标的影响，通过比较的运动学和动力学变量的路径上行走和没有指标。结果表明，走在指标导致下肢的额外运动，如增加最小脚趾高度在中间摆动阶段，增加峰值髋关节屈曲力矩，并增加峰值髋关节高度。这项研究还表明，功能性腿长差异，而走在指标是下肢的额外运动的原因之一。因此，我们设计了一个新的凹陷的触觉表面，以抵消表面深度的差异，而在含有指示器的路径上行走，并发现新设计的凹陷的触觉表面是有效的，以减少额外的运动，而在路径上的指示器安装行走。这些指标可帮助视障人士及视力正常的长者安全行走。
Tactile ground surface indicators installed on sidewalks help visually impaired people walk safely. The visually impaired distinguish the indicators by stepping into its convexities and following them. However, these indicators sometimes cause the nonvisually impaired to stumble. This study examines the effects of these indicators by comparing the kinematic and kinetic variables of walking on paths with and without indicators. The results suggest that walking on the indicators causes extra movements of the lower extremities such as increased minimum toe heights during the midswing phase, increased peak hip flex moments, and increased peak hip heights. This study also suggests that a functional leg length discrepancy while walking on the indicators is one of the reasons for the extra movements of the lower extremities. Therefore, we designed a new recessed tactile surface to offset the differences of surface depth while walking on the path containing indicators, and found that the newly designed recessed tactile surface was effective in reducing the extra movements while walking on the path in which indicators were installed. These indicators may help both the visually impaired and elderly people with normal vision to walk safely.