Abstract

18 Healthy volunteers were involved and the effect of functional neuromuscular electrical stimulation, which causes flexion of the hand on the corticospinal excitability during motor imaging and resting state, was investigated in this study. It was shown that the combined action of functional electrical stimulation and the kinesthetic motor imagery leads to an increase of the amplitude of motor evoked potentials, caused by a single-pulse transcranial magnetic stimulation. At the same time, in the state of motor rest, this effect was not obtained. Since a change in corticospinal excitability at the cortical level may affect the processes of plastic reorganization necessary for the restoration of motor functions after strokes and other neurotraumas, the results of this work have a direct practical potential. In particular, the possibility of creating effective training complexes for the motor recovery based on motor imagery brain-computer interfaces with functional neuromuscular stimulation as a sensorimotor feedback is discussed. Rehabilitation with the use of such training complexes will help to elucidate the mechanisms of motor recovery, which are based on the phenomena of neuroplasticity due to changes in the excitability of neurons of the sensorimotor cortex.

中文翻译：

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运动成像与功能性电刺激相结合的人类皮质脊髓兴奋性

摘要

本研究调查了18名健康志愿者，并研究了功能性神经肌肉电刺激在运动成像和静止状态下导致手部弯曲对皮质脊髓兴奋性的影响。结果表明，功能性电刺激和运动感觉运动图像的结合作用导致了由单脉冲经颅磁刺激引起的运动诱发电位的幅度增加。同时，在电动机静止的状态下，未获得该效果。由于皮质水平的皮质脊髓兴奋性改变可能会影响中风和其他神经创伤后恢复运动功能所必需的塑性重组过程，因此这项工作的结果具有直接的实际应用潜力。特别是，讨论了基于运动图像脑计算机接口以及功能性神经肌肉刺激作为感觉运动反馈来创建有效的运动恢复训练复合体的可能性。使用此类训练复合物进行的康复将有助于阐明运动恢复的机制，该机制基于感觉运动皮层神经元兴奋性变化引起的神经可塑性现象。