Spinal DC stimulation in humans modulates post-activation depression of the H-reflex depending on current polarity
作者： T. Winkler , P. Hering , A. Straube
DOI: 10.1016/J.CLINPH.2010.01.014
关键词:
摘要: Abstract Objective Transcranial direct current stimulation induces long-lasting changes in cortical excitability humans depending on the used. Further, transcutaneous spinal application of (tsDCS) plastic conduction properties, tested by somatosensory evoked potentials. To verify this thesis circuitry, we investigated effects tsDCS H-reflex size and post-activation depression. Methods Ten healthy subjects participated study. The H max / M ratio depression were evaluated before, at offset, 15min after anodal, cathodal or sham tsDCS. Stimulation cord (2.5mA, 0.063mA/cm 2 , 0.056C/cm ) was applied for Th11 level. Results Anodal induced a lasting decrease depression, while resulted sustained increase. Sham had no significant effects. remained unchanged throughout all conditions. Conclusion is non-invasive painless method that able to induce efficacy Ia fibre-motoneurone synapse. Significance Transcutaneous DC might be valuable new tool modulating motor pathways.
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