Cortical and Subcortical Contributions to Neuroplasticity after Repetitive Transspinal Stimulation in Humans

Figure 3

Soleus H-reflex depression by transspinal conditioning stimulation before and after 40 minutes of transspinal stimulation. Waveform averages of the right soleus H-reflex from two representative subjects under control conditions and following transspinal conditioning stimulation before (green lines) and after (red lines) 40 min of transspinal stimulation. All traces are shown as captured, without subtraction, to counteract summation of soleus H-reflex and soleus TEP at C-T intervals when this phenomenon is observed. A negative C-T interval denotes that transspinal stimulation was delivered after stimulation of soleus group Ia afferents. Circled traces indicate potentiation of soleus H-reflex depression by transspinal conditioning stimulation after 40 min of transspinal stimulation. Traces show the average of 15 unconditioned and conditioned soleus H-reflexes.

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