skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Modulation of spinal excitability following neuromuscular electrical stimulation superimposed to voluntary contraction

Borzuola, Riccardo ; Labanca, Luciana ; Macaluso, Andrea ; Laudani, Luca

European journal of applied physiology, 2020-09, Vol.120 (9), p.2105-2113 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

Texto completo disponível

Citações Citado por
  • Título:
    Modulation of spinal excitability following neuromuscular electrical stimulation superimposed to voluntary contraction
  • Autor: Borzuola, Riccardo ; Labanca, Luciana ; Macaluso, Andrea ; Laudani, Luca
  • Assuntos: Ankle ; Biomedical and Life Sciences ; Biomedicine ; Electrical stimuli ; Electromyography ; Excitability ; Human Physiology ; Muscle contraction ; Neuromuscular electrical stimulation ; Neuromuscular system ; Occupational Medicine/Industrial Medicine ; Original ; Original Article ; Pyramidal tracts ; Rehabilitation ; Skeletal muscle ; Sports Medicine ; Tibial nerve ; Young adults
  • É parte de: European journal of applied physiology, 2020-09, Vol.120 (9), p.2105-2113
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Communicated by Toshio Moritani.
  • Descrição: Purpose Neuromuscular electrical stimulation (NMES) superimposed on voluntary muscle contraction has been recently shown as an innovative training modality within sport and rehabilitation, but its effects on the neuromuscular system are still unclear. The aim of this study was to investigate acute responses in spinal excitability, as measured by the Hoffmann (H) reflex, and in maximal voluntary contraction (MVIC) following NMES superimposed to voluntary isometric contractions (NMES + ISO) compared to passive NMES only and to voluntary isometric contractions only (ISO). Method Fifteen young adults were required to maintain an ankle plantar-flexor torque of 20% MVC for 20 repetitions during each experimental condition (NMES + ISO, NMES and ISO). Surface electromyography was used to record peak-to-peak H-reflex and motor waves following percutaneous stimulation of the posterior tibial nerve in the dominant limb. An isokinetic dynamometer was used to assess maximal voluntary contraction output of the ankle plantar flexor muscles. Results H-reflex amplitude was increased by 4.5% after the NMES + ISO condition ( p  < 0.05), while passive NMES and ISO conditions showed a decrease by 7.8% ( p  < 0.05) and no change in reflex responses, respectively. There was no change in amplitude of maximal motor wave and in MVIC torque during each experimental condition. Conclusion The reported facilitation of spinal excitability following NMES + ISO could be due to a combination of greater motor neuronal and corticospinal excitability, thus suggesting that NMES superimposed onto isometric voluntary contractions may provide a more effective neuromuscular stimulus and, hence, training modality compared to NMES alone.
  • Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  3 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.