Twitch potentia induced by two different modalities of neuromuscular electrical stimulation: implications for motor unit recruitment.

Détails

ID Serval
serval:BIB_405F5857F365
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Twitch potentia induced by two different modalities of neuromuscular electrical stimulation: implications for motor unit recruitment.
Périodique
Muscle and Nerve
Auteur(s)
Dias Da Silva  Sarah Regina, Neyroud  Daria, Maffiuletti  Nicola A., Gondin  Julien, Place  Nicolas
ISSN
1097-4598 (Electronic)
ISSN-L
0148-639X
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
51
Numéro
3
Pages
412-418
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Résumé
INTRODUCTION: We tested the hypothesis that twitch potentiation would be greater following conventional (CONV) neuromuscular electrical stimulation (50-µs pulse width and 25-Hz frequency) compared with wide-pulse high-frequency (WPHF) neuromuscular electrical stimulation (1-ms, 100-Hz) and voluntary (VOL) contractions, because of specificities in motor unit recruitment (random in CONV vs. random and orderly in WPHF vs. orderly in VOL).
METHODS: A single twitch was evoked by means of tibial nerve stimulation before and 2 s after CONV, WPHF, and VOL conditioning contractions of the plantar flexors (intensity: 10% maximal voluntary contraction; duration: 10 s) in 13 young healthy subjects.
RESULTS: Peak twitch increased (P<0.05) after CONV (+4.5±4.0%) and WPHF (+3.3±5.9%), with no difference between the 2 modalities, whereas no changes were observed after VOL (+0.8±2.6%).
CONCLUSIONS: Our results demonstrate that presumed differences in motor unit recruitment between WPHF and CONV do not seem to influence twitch potentiation results.
Pubmed
Web of science
Création de la notice
03/12/2014 15:45
Dernière modification de la notice
03/03/2018 16:28
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