Selectivity and excitability of upper-limb muscle activation during cervical transcutaneous spinal cord stimulation in humans
Roberto M. de Freitas, Atsushi Sasaki, Dimitry G. Sayenko, Yohei Masugi, Taishin Nomura, Kimitaka Nakazawa, Matija Milosevic
Abstract
We examined selectivity and excitability of motor activation in multiple upper-limb muscles during cervical transcutaneous spinal cord stimulation with different cathode and anode configurations. Hand muscles were more activated when the cathode was configured over the T1 vertebra compared with C6 and C7 locations. Higher stimulation intensities were required to activate distal hand muscles than proximal arm muscles. Finally, configuration of anode over anterior neck elicited larger responses compared with other configurations.
Topics & Concepts
StimulationSpinal cordAnatomyMedicineInternal medicinePsychiatrySpinal Cord Injury ResearchTranscranial Magnetic Stimulation StudiesMusculoskeletal pain and rehabilitation