This study was designed to investigate gait parameters upon crossing a barrier and environmental factors influencing the perceived risk of tripping. These factors included illumination and barrier conditions. Barrier conditions were divided into height, type, and color of the barrier. Illumination conditions included normal and dimmed conditions. Twelve male participants were recruited. They walked on a walkway, moving over a barrier. They gave a subjective rating of risk of tripping (SRRT) both before and after the walk. A research assistant recorded a gait disturbance rating (GDR) of the participant upon barrier crossing. The minimum foot clearance (MFC) of both the leading and lagging foot when moving over the barrier, and the step length of the participant before and after crossing the barrier were calculated. The results indicated that the SRRT, both before and after the walk, was significantly (p < 0.0001) higher when the barrier height increased. Increased barrier height caused significantly (p < 0.0001) higher GDR. The barrier type (p < 0.01) and illumination conditions (p < 0.001) had significant effects on the MFC of both the leading and the lagging foot. The color (p < 0.05) and height (p < 0.05) of the barrier also influenced the MFC of the lagging foot significantly. Step length of the leading foot when crossing the barrier was significantly affected by illumination condition (p < 0.001) and barrier type (p < 0.05). The results of the study are helpful in understanding the mechanisms brought into play when moving over barriers on walkways. They provide meaningful information that will help in reducing trip and fall accidents.

这项研究旨在调查越过障碍物的步态参数和影响绊倒风险的环境因素。这些因素包括照明和障碍条件。屏障条件分为屏障的高度，类型和颜色。照明条件包括正常和暗淡条件。招募了十二名男性参与者。他们走在人行道上，越过障碍。他们对步行前后的绊倒风险（SRRT）进行了主观评估。一名研究助理记录了障碍物穿越时参与者的步态干扰等级（GDR）。计算了越过障碍物时前脚和后脚的最小脚部间隙（MFC），以及参与者越过障碍物之前和之后的步长。p  <0.0001）当势垒高度增加时更高。势垒高度增加导致 GDR显着提高（p <0.0001）。屏障类型（p  <0.01）和光照条件（p  <0.001）对前脚和后脚的MFC都有显着影响。 障碍物的颜色（p  <0.05）和高度（p <0.05）也显着影响了脚后跟的MFC。穿过障碍物时前脚的步长受照明条件（p  <0.001）和障碍物类型（p <0.05）。研究结果有助于理解在人行道上越过障碍物时所发挥的作用机理。它们提供了有意义的信息，将有助于减少绊倒和摔倒的事故。