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首页> 外文期刊>Clinical biomechanics >Ankle-foot orthoses in stroke: effects on functional balance, weight-bearing asymmetry and the contribution of each lower limb to balance control.
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Ankle-foot orthoses in stroke: effects on functional balance, weight-bearing asymmetry and the contribution of each lower limb to balance control.

机译：中风的踝足矫形器：对功能平衡，负重不对称以及每个下肢对平衡控制的贡献。

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BACKGROUND: Ankle-foot orthoses are often provided to improve walking in stroke patients, although the evidence of effects on walking and balance control is still inconsistent. This could be caused by a lack of insight into the influence of orthoses on the underlying impairments. These impairments can be assessed with dual plate posturography to determine the relative contribution of each lower limb to balance control and weight-bearing. This study examined the effects of ankle-foot orthoses on functional balance, static and dynamic weight-bearing asymmetry and dynamic balance control of the paretic and non-paretic lower limbs. METHODS: Twenty stroke subjects (time since stroke 5-127 months) completed the study. Subjects were assessed with and without ankle-foot orthosis. Functional balance was assessed using the Berg Balance Scale, Timed Up & Go test, Timed Balance Test, 10-m walking test and Functional Ambulation Categories. Weight-bearing asymmetry and dynamic balance control were assessed with force plates on a movable platform. FINDINGS: No significant effects of ankle-foot orthoses were found for weight-bearing asymmetry and dynamic balance control, but significant differences in favour of ankle-foot orthosis use were found for most functional tests. INTERPRETATION: Although ankle-foot orthoses had no effect on weight-bearing asymmetry or dynamic balance contribution of the paretic lower limb, functional tests were performed significantly better with orthoses. Apparently, improvements at functional level cannot be readily attributed to a greater contribution of the paretic lower limb to weight-bearing or balance control. This finding suggests that ankle-foot orthoses influence compensatory mechanisms.
机译：背景：尽管在步行和平衡控制方面尚无统一的证据，但通常会提供踝足矫形器来改善中风患者的步行。这可能是由于缺乏对矫形器对潜在损伤的影响的了解。可以用双板体位描记法评估这些损伤，以确定每个下肢对平衡控制和负重的相对作用。这项研究检查了踝足矫形器对坐式和非坐式下肢的功能平衡，静态和动态负重不对称以及动态平衡控制的影响。方法：20名中风受试者（自中风5-127个月以来的时间）完成了研究。评估受试者是否患有脚踝矫形器。使用Berg平衡量表，Timed Up＆Go测试，Timed Balance测试，10 m步行测试和功能性移动类别来评估功能平衡。用可移动平台上的测力板评估了承重不对称和动态平衡控制。结果发现，对于负重不对称和动态平衡控制，没有发现脚踝矫形器的显着影响，但是在大多数功能测试中，发现在使用脚踝矫形器方面存在显着差异。解释：尽管踝足矫形器对负重不对称性或下肢肢体的动态平衡贡献没有影响，但矫形器的功能测试明显更好。显然，功能水平的改善不能轻易归因于paretic下肢对负重或平衡控制的更大贡献。这一发现表明，踝足矫形器会影响补偿机制。

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