Relationship between asymmetry of quiet standing balance control and walking post-stroke
Relationship between asymmetry of quiet standing balance control and walking post-stroke
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DOI：
10.1016/j.gaitpost.2013.06.022
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发表时间：
2014-01-01
期刊：
影响因子：
2.4
通讯作者：
Mansfield, Avril
中科院分区：
文献类型：
--
作者：
Hendrickson, Janna;Patterson, Kara K.;Mansfield, Avril
空间和时间步态不对称是常见的中风后。这种不对称步态效率低下，可能导致不稳定，并可能导致肌肉骨骼损伤。然而，这种步态不对称的决定因素的理解仍然是不完整的。目前的研究重点是揭示站立平衡控制过程中的不对称与行走过程中的不对称之间是否存在联系。本研究涉及对94名来自步态和平衡诊所的中风患者的数据进行审查。参与者完成了三项测试：（1）以他们平常的速度行走;（2）安静站立;（3）以瘫痪侧的最大负荷站立。一个压力敏感的垫子记录了行走过程中每个脚步的位置和时间。在两个测力板上完成站立测试，以评估承重的对称性和每个肢体对平衡控制的贡献。进行多元回归，以确定站立时的对称性和摆动时间，站立时间和步行时的步长对称性之间的关系。前后平衡控制和负重的对称性与摆动时间和步行步长的对称性有关。负重对称性、负重能力、前后平衡控制对称性与站立时间对称性有关。这些关联独立于潜在的下肢损伤。研究结果支持了这一假设，即瘫痪肢体控制平衡的能力受损可能导致中风后步态不对称。这些工作表明，康复策略，增加瘫痪肢体站立平衡控制的贡献，可能会增加中风后行走的对称性。(C)2013爱思唯尔有限公司版权所有。
Spatial and temporal gait asymmetry is common after stroke. Such asymmetric gait is inefficient, can contribute to instability and may lead to musculoskeletal injury. However, understanding of the determinants of such gait asymmetry remains incomplete. The current study is focused on revealing if there is a link between asymmetry during the control of standing balance and asymmetry during walking. This study involved review of data from 94 individuals with stroke referred to a gait and balance clinic. Participants completed three tests: (1) walking at their usual pace; (2) quiet standing; and (3) standing with maximal loading of the paretic side. A pressure sensitive mat recorded placement and timing of each footfall during walking. Standing tests were completed on two force plates to evaluate symmetry of weight bearing and contribution of each limb to balance control. Multiple regression was conducted to determine the relationships between symmetry during standing and swing time, stance time, and step length symmetry during walking. Symmetry of antero-posterior balance control and weight bearing were related to swing time and step length symmetry during walking. Weight-bearing symmetry, weight-bearing capacity, and symmetry of antero-posterior balance control were related to stance time symmetry. These associations were independent of underlying lower limb impairment. The results support the hypothesis that impaired ability of the paretic limb to control balance may contribute to gait asymmetry post-stroke. Such work suggests that rehabilitation strategies that increase the contribution of the paretic limb to standing balance control may increase symmetry of walking post-stroke. (C) 2013 Elsevier B.V. All rights reserved.