Assessment of abdominal muscle function in individuals with motor-complete spinal cord injury above T6 in response to transcranial magnetic stimulation.
DOI:
https://doi.org/10.2340/16501977-1901Keywords:
corticospinal pathways, diaphragm, motor cortex, motor-evoked potentials, thoracic segments.Abstract
OBJECTIVE: To use transcranial magnetic stimulation and electromyography to assess the potential for preserved function in the abdominal muscles in individuals classified with motor-complete spinal cord injury above T6. SUBJECTS: Five individuals with spinal cord injury (C5-T3) and 5 able-bodied individuals. METHODS: Transcranial magnetic stimulation was delivered over the abdominal region of primary motor cortex during resting and sub-maximal (or attempted) contractions. Surface electromyography was used to record motor-evoked potentials as well as maximal voluntary (or attempted) contractions in the abdominal muscles and the diaphragm. RESULTS: Responses to transcranial magnetic stimulation in the abdominal muscles occurred in all spinal cord injury subjects. Latencies of muscle response onsets were similar in both groupsDownloads
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