Spatiotemporal Characteristics of Lateral Reactive Stepping in Individuals with Chronic Stroke

Spatiotemporal Characteristics of Lateral Reactive Stepping in Individuals with Chronic Stroke
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慢性脑卒中患者侧向反应性踏步的时空特征

DOI:
10.1080/00222895.2022.2080172
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发表时间:
2022
影响因子:
1.4
通讯作者:
Kozuka Naoki
Kozuka Naoki
中科院分区:
心理学4区
文献类型:
--
作者:
Tashiro Hideyuki;Sato Yui;Fukumoto Kanta;Toki Megumi;Kozuka Naoki

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我们比较了中风患者与年龄匹配的对照组的横向扰动引起的反应性踏步的时空特征。我们对12名中风受试者和17名健康老年人进行了横向步进。我们分析了步进过程中的第一步时空参数,并在步进阈值处记录了所选的反应性步骤类型。中风患者比对照组表现出更低的踏步阈值和更频繁地使用中间步骤。与对照组相比,中风受试者在向非麻痹侧扰动时的外侧步和向两侧扰动时的内侧步中,离脚前的延迟时间也更长。因此,中风患者反应性踏步的时间缺陷可能归因于中风相关的感觉运动障碍,表明他们在平衡控制方面的局限性。
We compared the spatiotemporal characteristics of lateral perturbation-induced reactive stepping in stroke subjects with those of age-matched controls. We subjected 12 stroke subjects and 17 healthy elderly controls to lateral stepping. We analyzed first-step spatiotemporal parameters during stepping and recorded the selected reactive step types at the stepping threshold. Stroke subjects showed a lower stepping threshold and more frequently used medial steps than controls. Stroke subjects also had a longer delay prior to foot-off in lateral steps when perturbed toward the nonparetic side, and in medial steps when perturbed toward both sides than controls. Thus, the time deficits in reactive stepping in individuals with stroke may be attributed to stroke-related sensorimotor impairments, indicating their limitations in balance control.
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