Abstract：
Laboratory-based gait analyses traditionally analyze baseline characteristics in individuals while they are barefoot. However, there is limited evidence on whether individuals\' preferred walking shoes alter lower extremity kinematics during over-ground walking. We present novel evidence regarding the effects of shoes on lower extremity kinematics in healthy, young adults. Fifteen volunteers participated in this study which obtained lower extremity kinematic data on two over-ground walking conditions (barefoot and preferred shoes). Gait velocity, stance width, and stride length, along with sagittal plane hip, knee, and ankle angular positions were computed; hip, knee, and ankle positions were normalized to 100% of the stride. Dependent t-tests were used to compare baseline and shoe conditions for gait velocity and stance width; a two-way analysis of variance was used for stride length. A point-by-point Model Statistic analysis was used to identify significant differences in angular joint positions between conditions. Our results indicate that shoes affected the ankle angular joint position for more than half of the gait cycle, and affected the knee angular joint position, but only for approximately 20% of the cycle. The hip was unaffected by shoes. Gait velocity and stance width were statistically significant, with gait velocity being greater for shoes, and stance width being greater while barefoot. Stride length was not statistically significant between conditions. These outcomes suggest that researchers should use caution if they are considering a barefoot condition as a \'baseline\' for healthy, young adults, as there are marked changes in the ankle, and in traditional gait metrics.
摘要：
基于实验室的步态分析传统上分析赤脚个体的基线特征。然而,关于个人首选步行鞋是否会在地面行走过程中改变下肢运动学的证据有限。我们提出了关于鞋子对健康下肢运动学影响的新证据，年轻人。15名志愿者参加了这项研究，该研究获得了两种地面行走条件（赤脚和首选鞋子）的下肢运动学数据。步态速度,站位宽度,和步幅长度，随着矢状平面髋关节，膝盖,计算脚踝的角度位置；臀部，膝盖,和踝关节的位置被标准化为100%的步幅。依赖t检验用于比较步态速度和站立宽度的基线和鞋子条件；对步幅进行双向方差分析。使用逐点模型统计分析来识别条件之间的角接头位置的显着差异。我们的结果表明，鞋子影响踝关节角的位置超过一半的步态周期，影响了膝关节角的位置，但只有大约20%的周期。臀部不受鞋子的影响。步态速度和站位宽度有统计学意义，鞋子的步态速度更大，赤脚时姿势宽度更大。步幅长度在条件之间没有统计学意义。这些结果表明，如果研究人员考虑将赤脚状况作为健康的“基线”，则应谨慎使用。年轻人,因为脚踝有明显的变化，以及传统的步态指标。
