Children With and Without Dystonia Share Common Muscle Synergies While Performing Writing Tasks.
Children With and Without Dystonia Share Common Muscle Synergies While Performing Writing Tasks.
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DOI：
10.1007/s10439-017-1838-0
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发表时间：
2017-08
影响因子：
3.8
通讯作者：
Pedrocchi A
中科院分区：
文献类型：
--
作者：
Lunardini F;Casellato C;Bertucco M;Sanger TD;Pedrocchi A
儿童肌张力障碍是一种以肌肉溢出和变异为特征的运动障碍。这是第一项研究儿童肌张力障碍上肢肌肉协同作用的研究，其双重目的是加深对神经运动功能障碍的理解，并为适合这种神经系统人群的可能的基于协同作用的肌肉控制界面铺平道路。非负矩阵分解被施加到上肢肌肉的活动记录在执行写作任务的儿童肌张力障碍和年龄匹配的控制。尽管肌张力障碍的儿童提出妥协的运动学的书写结果，一个惊人的相似性出现在从两组儿童中提取的协同向量的数量和结构。分析还显示，协同系数的激活时间没有显著差异，而峰的幅度略有降低。这些结果表明，协同分析有能力捕捉肌张力障碍的肌电信号的未损坏的部分。这种能力支持未来可能使用肌肉协同作用设计肌张力障碍儿童的肌控制接口。
Childhood dystonia is a movement disorder characterized by muscle overflow and variability. This is the first study that investigates upper limb muscle synergies in childhood dystonia with the twofold aim of deepening the understanding of neuromotor dysfunctions and paving the way to possible synergy-based myocontrol interfaces suitable for this neurological population. Nonnegative matrix factorization was applied to the activity of upper-limb muscles recorded during the execution of writing tasks in children with dystonia and age-matched controls. Despite children with dystonia presented compromised kinematics of the writing outcome, a strikingly similarity emerged in the number and structure of the synergy vectors extracted from children in the two groups. The analysis also revealed that the timing of activation of the synergy coefficients did not significantly differ, while the amplitude of the peaks presented a slight reduction. These results suggest that the synergy analysis has the ability of capturing the uncorrupted part of the electromyographic signal in dystonia. Such an ability supports a possible future use of muscle synergies in the design of myocontrol interfaces for children with dystonia.
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影响因子：
2.5
作者：
d'Avella, Andrea;Fernandez, Laure;Lacquaniti, Francesco
通讯作者：
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影响因子：
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作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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影响因子：
2.5
作者：
Valero-Cuevas, Francisco J.;Venkadesan, Madhusudhan;Todorov, Emanuel
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