Modulation of soleus H-reflex excitability following cervical transspinal conditioning stimulation in humans
| Autor: | Morad Zaaya, Erin Comiskey, Amanda O’Keefe, Joseph Demetrio, Nicole Palazzo, Maria Knikou, Timothy S. Pulverenti, Md. Anamul Islam |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Adult Male Stimulation H-Reflex 03 medical and health sciences 0302 clinical medicine Neuromodulation medicine Humans Evoked potential Muscle Skeletal Leg Neuronal Plasticity business.industry Electromyography General Neuroscience Spinal cord Evoked Potentials Motor Electric Stimulation 030104 developmental biology medicine.anatomical_structure Facilitation Reflex Excitatory postsynaptic potential Arm Female H-reflex business Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Neuroscience letters. 732 |
| ISSN: | 1872-7972 |
| Popis: | The aim of this study was to establish the effects of transcutaneous spinal cord (transspinal) stimulation over the cervical region on soleus H-reflex excitability in healthy subjects while at rest. Reflex effects were established at subthreshold and suprathreshold cervical transspinal conditioning stimulation intensities of the extensor carpi radialis transspinal evoked potential. Twenty soleus H-reflexes at 0.125 Hz were recorded randomly under control conditions and following transspinal conditioning stimulation at conditioning-test intervals that ranged from 0 to 55 ms and tested in increment of 5 ms steps and at 100 ms. Cervical transspinal stimulation at suprathreshold and not at subthreshold intensities produced short, medium, and long-latency soleus H-reflex facilitation. The observed facilitatory reflex effects are consistent with activation of excitatory components of long propriospinal neurons. We propose the use of cervical transspinal stimulation to potentiate excitatory neuronal interactions between arms and legs in neurological disorders. |
| Databáze: | OpenAIRE |
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