Walking trajectory in neglect patients
Walking trajectory in neglect patients
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DOI：
10.1016/j.gaitpost.2005.02.003
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发表时间：
2006-02-01
期刊：
影响因子：
2.4
通讯作者：
Postema, K
中科院分区：
文献类型：
--
作者：
Huitema, RB;Brouwer, WH;Postema, K
单侧空间忽略的中风患者常出现行走轨迹的侧向偏离。然而，现有的研究似乎是矛盾的方向，这种偏差。本研究的目的是更深入地了解忽视患者的步行轨迹。12名右半球卒中患者（6名忽视，6名无忽视），8名左半球卒中患者（无忽视）和10名健康对照者被指示向目标行走，同时二维超声定位系统记录他们的行走轨迹。评估了患者步行能力的恢复情况，并对他们进行了忽视测试。与没有忽视或控制的中风患者相比，神经衰弱患者的行走轨迹显示出更大的侧向偏差。行走能力良好的患者表现出向对侧的偏移。行走能力受限的神经元患者表现出向同侧的偏离。在忽视组，我们发现忽视的严重程度和横向偏差之间没有关系。步行能力的差异可能是忽视患者步行轨迹横向偏差研究之间相互矛盾的结果。我们认为，当一个忽视病人的行走能力是有限的，走向一个目标成为一个双重任务：航向控制和行走。与航向控制相比，有限的行走能力将导致行走的任务优先级更高。这种任务优先级的变化可能会导致步行轨迹偏差的变化。(C)2005 Elsevier B.V.保留所有权利。
A lateral deviation of the walking trajectory is often observed in stroke patients with unilateral spatial neglect. However, existing research appears to be contradictory regarding the direction of this deviation. The aim of the present study was to gain more insight into the walking trajectory of neglect patients. Twelve right hemisphere stroke patients (six neglect, six no neglect), eight left hemisphere stroke patients (none neglect) and 10 healthy control subjects were instructed to walk towards a target while a two-dimensional ultrasonic positioning system recorded their walking trajectory. Patients' recovery of walking ability was assessed and they were tested for the presence of neglect. Neglect patients showed a larger lateral deviation in their walking trajectory compared to stroke patients without neglect or controls. Neglect patients with good walking ability showed a deviation to the contralesional side. Neglect patients with limited walking ability showed a deviation to the ipsilesional side. Within the neglect group we found no relation between the severity of neglect and lateral deviation. Differences in walking ability may account for the contradictory results between studies regarding the lateral deviation in neglect patients' walking trajectory. We suggest that when a neglect patient's walking ability is limited, walking towards a target becomes a dual task: heading control and walking. A limited walking ability will cause a higher task priority of walking compared to heading control. This shift in task priority may be causing the change in walking trajectory deviation. (C) 2005 Elsevier B.V. All rights reserved.