The aim of the pilot study is to gain first insights into the interaction of transcutaneous spinal cord stimulation with the altered activity of intraspinal circuits associated with spinal spasticity. The main goal is to evaluate the validity of the chosen measures and to generate a data base for statistical planning of a subsequent clinical study.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
30
noninvasive electrical stimulation of the human lumbar spinal cord
Medical University of Vienna
Vienna, Austria
Klinik Floridsdorf
Vienna, Austria
Postsynaptic inhibition
reciprocal inhibition of the soleus H-reflex
Time frame: pre-intervention to 2 hours post-intervention
Presynaptic inhibition
induced D1 inhibition and ongoing presynaptic inhibition of the soleus-H reflex
Time frame: pre-intervention to 2 hours post-intervention
H_max/M_max
Ratio of the maximum H reflex and the maximum M wave
Time frame: pre-intervention to 2 hours post-intervention
Low-frequency depression
rate-dependent depression of the soleus H-reflex
Time frame: pre-intervention to 2 hours post-intervention
Evaluation of lower-limb spasticity
surface-electromyography based assessments
Time frame: pre-intervention to 2 hours post-intervention
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