CROSSED SPINAL SOLEUS MUSCLE COMMUNICATION DEMONSTRATED BY H-REFLEX CONDITIONING
CROSSED SPINAL SOLEUS MUSCLE COMMUNICATION DEMONSTRATED BY H-REFLEX CONDITIONING
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DOI：
10.1002/mus.21964
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发表时间：
2011-06-01
期刊：
影响因子：
3.4
通讯作者：
Mrachacz-Kersting, Natalie
中科院分区：
文献类型：
--
作者：
Stubbs, Peter W.;Nielsen, Jorgen F.;Mrachacz-Kersting, Natalie
简介：对同侧胫神经（iTN）的调节性截击抑制了对侧比目鱼肌（cSOL）在37-41 ms的潜伏期的肌电图活动。这是对侧肢体脊髓肌肉通讯的证据。我们研究的目的是确定cSOL H反射是否会以类似的方式受到抑制。研究方法：13名受试者参与了两个实验：（1）在最大峰-峰M波的85%处向iTN提供刺激（2）以85% M-max向iTN输送510个刺激，并以-6至100 ms的刺激间隔向对侧胫神经输送测试齐射。当在测试H反射之前3-33 ms递送条件刺激时，在cSOL H反射中观察到显著抑制。结论：该脊髓通路的活性可以使用H反射条件反射来量化，以提供用于该反应的进一步研究的受控模型。肌肉神经43：845-850，2011
Introduction: A conditioning volley to the ipsilateral tibial nerve (iTN) inhibits contralateral soleus (cSOL) electromyographic activity at latencies of 37-41 ms. This is evidence for spinal muscular communication in opposing limbs. The aim of our study was to determine whether the cSOL H-reflex would be inhibited in a similar manner. Methods: Thirteen subjects participated in two experiments: (1) stimuli delivered to the iTN at 85% of the maximal peak-to-peak M-wave (85% M-max) with a pre-contracted cSOL; (2) 510 stimuli delivered at 85% M-max to the iTN with a test volley delivered to the contralateral tibial nerve at interstimulus intervals of -6 to 100 ms. Results: Significant inhibition was observed in the cSOL H-reflex when conditioning stimuli were delivered 3-33 ms before the test H-reflex. Conclusions: The activity of this spinal pathway can be quantified using H-reflex conditioning to provide a controlled model for further studies of this response. Muscle Nerve 43: 845-850, 2011