Transcutaneous Electrical Neuromodulation of the Cervical Spinal Cord Depends Both on the Stimulation Intensity and the Degree of Voluntary Activity for Training. A Pilot Study
| Autor: | Victor Reggie Edgerton, Xavier Navarro, África Flores, Joan Vidal, Ignasi Soriano, María Rodríguez-Cañón, Yury Gerasimenko, Eloy Opisso, Hatice Kumru, Guillermo García-Alías, Loreto García |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Strength training
0206 medical engineering Stimulation 02 engineering and technology Stimulus (physiology) Article transcutaneous spinal cord stimulation F wave cervical spinal cord 03 medical and health sciences 0302 clinical medicine Neuromodulation intensity effect Medicine hand training business.industry muscle strength effect Motor control General Medicine Spinal cord 020601 biomedical engineering Intensity (physics) medicine.anatomical_structure Anesthesia neuromodulation business 030217 neurology & neurosurgery |
| Zdroj: | Journal of Clinical Medicine, Vol 10, Iss 3278, p 3278 (2021) Journal of Clinical Medicine Volume 10 Issue 15 r-IGTP. Repositorio Institucional de Producción Científica del Instituto de Investigación Germans Trias i Pujol instname |
| ISSN: | 2077-0383 |
| Popis: | Electrical enabling motor control (eEmc) through transcutaneous spinal cord stimulation offers promise in improving hand function. However, it is still unknown which stimulus intensity or which muscle force level could be better for this improvement. Nine healthy individuals received the following interventions: (i) eEmc intensities at 80%, 90% and 110% of abductor pollicis brevis motor threshold combined with hand training consisting in 100% handgrip strength (ii) hand training consisting in 100% and 50% of maximal handgrip strength combined with 90% eEmc intensity. The evaluations included box and blocks test (BBT), maximal voluntary contraction (MVC), F wave persistency, F/M ratio, spinal and cortical motor evoked potentials (MEP), recruitment curves of spinal MEP and cortical MEP and short-interval intracortical inhibition. The results showed that: (i) 90% eEmc intensity increased BBT, MVC, F wave persistency, F/M ratio and cortical MEP recruitment curve 110% eEmc intensity increased BBT, F wave persistency and cortical MEP and recruitment curve of cortical MEP (ii) 100% handgrip strength training significantly modulated MVC, F wave persistency, F/M wave and cortical MEP recruitment curve in comparison to 50% handgrip strength. In conclusion, eEmc intensity and muscle strength during training both influence the results for neuromodulation at the cervical level. |
| Databáze: | OpenAIRE |
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