Effect of the Anode Placement on the Antagonist Muscles Recruitment: Implication for the Interpolated Twitch Technique Outcome.
The aim of the present study was to compare the recruitment of the antagonist muscles and its effect on the measurement of the voluntary activation level (VA) of the knee extensor (KE) muscles for different anode placements used to stimulate the femoral nerve. We hypothesized that when the anode is...
| Publicado en: | Journal of Sports Science & Medicine Vol. 18; no. 4; pp. 674 - 680 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Hakan Gur, Journal of Sports Science & Medicine
Dec2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=139888679&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 139888679 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13032968 FYN jtl: Journal of Sports Science & Medicine issn: 13032968 maglogo: N pubinfo: dt: Dec2019 vid: 18 iid: 4 pid: 26030 pub: Hakan Gur, Journal of Sports Science & Medicine artinfo: ui: 139888679 139888679 139888679 139888679 ppf: 674 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Effect of the Anode Placement on the Antagonist Muscles Recruitment: Implication for the Interpolated Twitch Technique Outcome. aug: au: Piponnier, Enzo Thorkani, Ashref Zghal, Firas Cottin, François Martin, Vincent affil: Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France sug: subj: Muscle, Skeletal Physiology Nervous System Electric Stimulation Evaluation Muscle Strength Physiology Muscle Contraction Physiology Human Male Young Adult Adult Knee Physiology Electromyography Power Sources Femoral Nerve Physiology Outcome Assessment Adult: 19-44 years Male ab: The aim of the present study was to compare the recruitment of the antagonist muscles and its effect on the measurement of the voluntary activation level (VA) of the knee extensor (KE) muscles for different anode placements used to stimulate the femoral nerve. We hypothesized that when the anode is positioned over the gluteal fold (GF), the antagonist muscles recruitment would be greater and, thus the VA overestimated, than when the anode is placed midway between the greater trochanter and the lower border of the iliac crest (Midtroc-iliac). Thirteen healthy men (23 ± 4 yr) were tested in both conditions (GF vs. Midtroc-iliac) in a randomized order. Recruitment curves were performed to determine the optimal stimulus intensity (Iopt) and quantify antagonist muscles recruitment (i.e. biceps femoris M-wave). Participants performed maximal voluntary isometric contractions (MVIC) and the interpolated twitch technique was used to measured VA. Antagonist muscles recruitment was greater when the anode was placed over the GF than Midtroc-iliac. The Iopt was also lower for GF than Midtroc-iliac placement. However, no significant effect of anode placement was found for the interpolated twitch technique outcome. When the anode was placed over the GF, antagonist muscles recruitment was greater, inducing optimal stimulus intensity underestimation. However, it did not affect VA assessment. To fully avoid this potential limitation, Midtroc-iliac anode placement should nevertheless be preferred for the KE neuromuscular function assessment, owing to the reduced recruitment of the antagonist muscles. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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