Eccentric exercise inhibits the H reflex in the middle part of the trapezius muscle.

European Journal of Applied Physiology
Steffen VangsgaardPascal Madeleine

Abstract

The objectives of this study were to (1) investigate the modulation of the H reflex immediately after and 24 h after eccentric exercise in the presence of delayed-onset muscle soreness (DOMS) and (2) test the reproducibility of the H reflex in trapezius across days. H reflexes were recorded from the dominant middle trapezius muscle by electrical stimulation of the C3/4 cervical nerve in ten healthy subjects. DOMS was induced by eccentric exercise of the dominant shoulder. H reflexes were obtained in four sessions: "24 h before", "Pre", "Post", and "24 h after" eccentric exercise. Ratios of maximal H reflex and M wave responses (H (max)/M (max)) were compared between sessions. In addition, a between session comparison was done for the ratios of H reflex amplitudes (H (i_75)/M (max), and H (i_50)/M (max)) obtained from the stimulus intensity needed to obtain 75 and 50 % of H (max) at "24 h before". No ratio changes were found when comparing "24 h before" and "Pre" recordings. A decrease in H (i_50)/M (max) was found at "Post" (P < 0.05) and decreases in both H (i_75)/M (max) and H (i_50)/M (max) were observed at "24 h after" (P < 0.05). This study presented evidence that an acceptable day-to-day reproducibility of the H reflex co...Continue Reading

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Citations

Aug 8, 2013·European Journal of Applied Physiology·Mahdi HosseinzadehPascal Madeleine
Mar 13, 2015·Muscle & Nerve·Steffen VangsgaardPascal Madeleine
May 31, 2013·Muscle & Nerve·Steffen VangsgaardJanet L Taylor
Feb 3, 2018·Scandinavian Journal of Medicine & Science in Sports·P MadeleineA Kawczyński
Aug 23, 2018·European Journal of Applied Physiology·Sabata GervasioNatalie Mrachacz-Kersting
Aug 28, 2019·Medicine and Science in Sports and Exercise·Amelia S BruceAlan R Needle
Mar 7, 2015·Physiological Reports·Manning J SabatierKar Ou
Aug 11, 2015·Medicine and Science in Sports and Exercise·James L NuzzoJanet L Taylor
Jun 4, 2019·Medicine and Science in Sports and Exercise·Lucas StefanelliDuane C Button
Jun 29, 2016·Journal of Prosthodontic Research·Akihiro MitsuyamaToshiaki Ueno
Oct 8, 2020·European Journal of Applied Physiology·János NégyesiRyoichi Nagatomi

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