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首页> 外文期刊>Journal of Neurophysiology >Neuromodulation of evoked muscle potentials induced by epidural spinal-cord stimulation in paralyzed individuals
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Neuromodulation of evoked muscle potentials induced by epidural spinal-cord stimulation in paralyzed individuals

机译:麻痹性个体硬膜外脊髓刺激引起的诱发肌电位的神经调节

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摘要

Epidural stimulation (ES) of the lum-bosacral spinal cord has been used to facilitate standing and voluntary movement after clinically motor-complete spinal-cord injury. It seems of importance to examine how the epidurally evoked potentials are modulated in the spinal circuitry and projected to various motor pools. We hypothesized that chronically implanted electrode arrays over the lumbosacral spinal cord can be used to assess functionally spinal circuitry linked to specific motor pools. The purpose of this study was to investigate the functional and topographic organization of compound evoked potentials induced by the stimulation. Three individuals with complete motor paralysis of the lower limbs participated in the study. The evoked potentials to epidural spinal stimulation were investigated after surgery in a supine position and in one participant, during both supine and standing, with body weight load of 60%. The stimulation was delivered with intensity from 0.5 to 10 V at a frequency of 2 Hz. Recruitment curves of evoked potentials in knee and ankle muscles were collected at three localized and two wide-field stimulation configurations.
机译:腰bo脊髓硬膜外刺激(ES)已用于促进临床运动完全性脊髓损伤后的站立和自愿运动。检查硬膜外诱发电位如何在脊髓电路中被调制并投射到各种运动池上似乎很重要。我们假设,在腰ac脊髓上长期植入的电极阵列可用于评估与特定运动池相关的功能性脊髓电路。这项研究的目的是调查刺激诱发的复合诱发电位的功能和地形组织。下肢完全性麻痹的三个人参加了研究。在仰卧位和一名参与者在仰卧和站立期间的体重负荷为60%的手术后,研究了硬膜外脊髓刺激的诱发电位。以0.5 Hz至10 V的强度以2 Hz的频率进行刺激。在三个局部和两个广域刺激配置下,收集了膝盖和脚踝肌肉诱发电位的募集曲线。

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