Influence of visual feedback in the regulation of arm stiffness following stroke.
Influence of visual feedback in the regulation of arm stiffness following stroke.
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视觉反馈对中风后手臂僵硬调节的影响。
DOI：
10.1109/iembs.2011.6092031
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Giannoni,Psiche
中科院分区：
文献类型：
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作者：
Piovesan,Davide;Casadio,Maura;Morasso,Pietro;Giannoni,Psiche
中风幸存者强烈依赖视觉反馈来控制他们的运动，因为节段性反射的特征是固有的过度兴奋。为了测试视觉反馈对手臂稳定性调制的影响，我们在机器人介导的治疗过程中估计了9名中风幸存者的麻痹手臂的刚度，其中受试者接受了有视觉和无视觉的训练。虽然几项研究发现在未受损的个体中的影响可以忽略不计，但我们的结果强调了在没有视觉反馈的情况下中风幸存者手臂僵硬的显着减少。
Stroke survivors strongly rely on visual feedback to control their movements, since segmental reflexes are characterized by an inherent hyper-excitability. To test the effect of visual feedback on the modulation of arm stability we estimated the stiffness of the paretic arm in nine stroke survivors during robot mediated therapy, where subjects trained with and without vision. While several studies found a negligible effect in unimpaired individuals, our results highlighted a marked reduction of stroke survivors' arm stiffness in absence of visual feedback.