The negotiation of stationary and moving obstructions during walking:: Anticipatory locomotor adaptations and preservation of personal space
The negotiation of stationary and moving obstructions during walking:: Anticipatory locomotor adaptations and preservation of personal space
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DOI：
10.1123/mcj.9.3.242
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发表时间：
2005-07-01
期刊：
影响因子：
1.1
通讯作者：
McFadyen, BJ
中科院分区：
文献类型：
--
作者：
Gérin-Lajoie, M;Richards, CL;McFadyen, BJ
本文介绍了一种新颖的，生态的，有障碍的步行范式。步态适应，以规避障碍物进行不确定的位移，并事先揭示障碍物的行动的影响，在年轻的成年人进行了调查。在步行过程中保持的个人空间（PS）进行了量化的第一次在不同的环境因素，包括听觉干扰。障碍物运动及其不确定性导致步态调整，旨在获得时间来评估情况。早期的步态适应和不断清除周围的障碍表明，预期和预先计划参与这样的导航任务。参与者系统地保持一个椭圆PS在规避，但他们根据不同的环境因素调整其大小。PS的大小与注意水平有关，提示PS的调节是控制运动的重要机制。这种新的范式对真实的世界环境中运动能力的评估和训练具有重要意义。
This article introduces a novel, ecological, obstructed walking paradigm. Gait adaptations to circumvent obstacles undergoing uncertain displacements, and the effect of revealing the obstacle's action beforehand, were investigated in young adults. The personal space (PS) maintained during walking was quantified for the first time under different environmental factors including auditory distractions. Obstacle movement and its uncertainty resulted in gait adjustments aimed at gaining time to assess the situation. Early gait adaptations and constant clearances around the obstacle suggest that anticipation and preplanning are involved in such navigational tasks. Participants systematically maintained an elliptical PS during circumvention, but they adjusted its size according to different environmental factors. There was a relationship between the size of PS and level of attention, which suggests that the regulation of PS is used to control locomotion. This novel paradigm has important implications for the assessment and training of locomotor ability within real world environments.