Differences in the recruitment curves obtained with monopolar and bipolar electrode configurations in the quadriceps femoris.
Détails
ID Serval
serval:BIB_B901A9B736FD
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Differences in the recruitment curves obtained with monopolar and bipolar electrode configurations in the quadriceps femoris.
Périodique
Muscle & nerve
ISSN
1097-4598 (Electronic)
ISSN-L
0148-639X
Statut éditorial
Publié
Date de publication
06/2016
Peer-reviewed
Oui
Volume
54
Numéro
1
Pages
118-131
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
We sought to verify whether the stimulation intensity at which M-wave amplitude reaches a plateau actually corresponds to full motor unit activation in monopolar and bipolar configurations.
M-waves and twitches were evoked using femoral nerve stimulation of gradually increasing intensity in 21 subjects. Recruitment curves corresponding to the amplitude of the first phase (AmpliFIRST ) and peak-to-peak amplitude (AmpliPP ) of the M-wave were obtained in the vastus lateralis, vastus medialis, and rectus femoris in monopolar and bipolar configurations.
In all muscles, bipolar M-waves and twitches reached plateau at a significantly lower stimulus intensity compared with monopolar M-waves (P < 0.05). The different behavior of monopolar and bipolar M-waves with stimulus intensity was found for both AmpliFIRST and AmpliPP .
In a bipolar configuration, the stimulus intensity at which M-waves plateau should be increased by at least 10%-20% to achieve complete motor unit recruitment. Muscle Nerve 54: 118-131, 2016.
M-waves and twitches were evoked using femoral nerve stimulation of gradually increasing intensity in 21 subjects. Recruitment curves corresponding to the amplitude of the first phase (AmpliFIRST ) and peak-to-peak amplitude (AmpliPP ) of the M-wave were obtained in the vastus lateralis, vastus medialis, and rectus femoris in monopolar and bipolar configurations.
In all muscles, bipolar M-waves and twitches reached plateau at a significantly lower stimulus intensity compared with monopolar M-waves (P < 0.05). The different behavior of monopolar and bipolar M-waves with stimulus intensity was found for both AmpliFIRST and AmpliPP .
In a bipolar configuration, the stimulus intensity at which M-waves plateau should be increased by at least 10%-20% to achieve complete motor unit recruitment. Muscle Nerve 54: 118-131, 2016.
Mots-clé
Adult, Electric Stimulation, Electrodes/classification, Electromyography, Femoral Nerve/physiology, Healthy Volunteers, Humans, Knee/innervation, Male, Muscle Contraction/physiology, Quadriceps Muscle/physiology, Recruitment, Neurophysiological/physiology, Statistics, Nonparametric, Young Adult, bipolar recording, femoral nerve stimulation, monopolar recording, motor unit recruitment, plateau stimulus intensity, recruitment curve
Pubmed
Web of science
Création de la notice
05/01/2016 10:51
Dernière modification de la notice
21/08/2019 6:36
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