Burst‐Modulated Wide‐Pulse Neuromuscular Electrical Stimulation Enhances H‐Reflex Recruitment In Rats
Burst‐Modulated Wide‐Pulse Neuromuscular Electrical Stimulation Enhances H‐Reflex Recruitment In Rats
复制标题
突发调制宽脉冲神经肌肉电刺激增强大鼠 H 反射募集
DOI：
10.1002/mus.26812
复制
发表时间：
2020
期刊：
影响因子：
3.4
通讯作者：
Xiaoying Wu
中科院分区：
文献类型：
--
作者：
Wen Qu;Wensheng Hou;Yun Zhao;Bin Shu;Lin Chen;Xiaolin Zheng;Xing Wang;Xiaoying Wu
在这项研究中，我们研究了猝发调制宽脉冲神经肌肉电刺激（NMES）是否能提高感觉纤维的H反射和激活效率。方法记录11只麻醉大鼠后爪足底肌肌电图（EMG）。将三个载波频率（2khz、5khz和10khz）的爆发调制宽脉冲（mWP）和连续宽脉冲（WP）传递到每只大鼠的胫骨神经。采用H -反射招募曲线（HRC）测量诱发的Hoffman (H) -反射以评估神经激活效率。结果与WP模拟相比，mWP刺激所需的电荷更少，刺激感觉纤维所需的电荷更少，可改善H反射招募。随着mWP载流子频率的增加，电荷增大，吸收增益减小。讨论mwp NMES可提高刺激效率，改善胫骨神经刺激感觉纤维的募集，有助于优化NMES刺激参数。
IntroductionIn this study we investigated whether burst‐modulated wide‐pulse neuromuscular electrical stimulation (NMES) can improve the H‐reflex and activation efficiency of sensory fibers.MethodsNMES‐induced electromyography (EMG) was recorded from hindpaw plantar muscles in 11 anesthetized rats. A burst‐modulated wide pulse (mWP) with three carrier frequencies (2 kHz, 5 kHz, and 10 kHz) and a continuous wide‐pulse (WP) were delivered to the tibial nerve of each rat. The evoked Hoffman (H)‐reflexes were measured to evaluate nerve activation efficiency using the H‐reflex recruitment curve (HRC).ResultsRelative to WP simulation, mWP stimulation required less electrical charge to excite sensory fibers and improved the H‐reflex recruitment. Greater electrical charge and smaller recruitment gains were obtained with increased carrier frequency of mWP.DiscussionmWP NMES can improve stimulation efficiency and improve recruitment of sensory fibers on tibial nerve stimulation, which may help to optimize NMES stimulus parameters.