Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors

The present study examined if the magnitude of changes in indirect muscle damage markers could be predicted by maximal voluntary isometric contraction (MVIC) torque changes from immediately to 1 day after eccentric exercise. Twenty-eight young men performed 100 maximal isokinetic (60°/s) eccentric c...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mikio Shoji, Ryoichi Ema, Kazunori Nosaka, Akihiro Kanda, Kosuke Hirata, Ryota Akagi
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	maximal voluntary isometric contraction recovery rate muscle soreness voluntary activation potentiated doublet torque shear modulus Physiology QP1-981
Acceso en línea:	https://doaj.org/article/ec94a5b98e454f34860bc9ed1777b2cc
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ec94a5b98e454f34860bc9ed1777b2cc
record_format	dspace
spelling	oai:doaj.org-article:ec94a5b98e454f34860bc9ed1777b2cc2021-11-17T05:42:42ZMuscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors1664-042X10.3389/fphys.2021.775157https://doaj.org/article/ec94a5b98e454f34860bc9ed1777b2cc2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphys.2021.775157/fullhttps://doaj.org/toc/1664-042XThe present study examined if the magnitude of changes in indirect muscle damage markers could be predicted by maximal voluntary isometric contraction (MVIC) torque changes from immediately to 1 day after eccentric exercise. Twenty-eight young men performed 100 maximal isokinetic (60°/s) eccentric contractions of the knee extensors. MVIC torque, potentiated doublet torque, voluntary activation (VA) during MVIC, shear modulus of rectus femoris (RF), vastus medialis and lateralis, and muscle soreness of these muscles were measured before, immediately after, and 1–3 days post-exercise. Based on the recovery rate of the MVIC torque from immediately to 1-day post-exercise, the participants were placed to a recovery group that showed an increase in the MVIC torque (11.3–79.9%, n = 15) or a no-recovery group that showed no recovery (−71.9 to 0%, n = 13). No significant difference in MVIC torque decrease immediately post-exercise was found between the recovery (−33 ± 12%) and no-recovery (−32 ± 9%) groups. At 1–3 days, changes in MVIC torque (−40 to −26% vs. −22 to −12%), potentiated doublet torque (−37 to −22% vs. −20 to −9%), and proximal RF shear modulus (29–34% vs. 8–15%) were greater (p < 0.05) for the no-recovery than recovery group. No significant group differences were found for muscle soreness. The recovery rate of MVIC torque was correlated (p < 0.05) with the change in MVIC torque from baseline to 2 (r = 0.624) or 3 days post-exercise (r = 0.526), or peak change in potentiated doublet torque at 1–3 days post-exercise from baseline (r = 0.691), but not correlated with the changes in other dependent variables. These results suggest that the recovery rate of MVIC torque predicts changes in neuromuscular function but not muscle soreness and stiffness following eccentric exercise of the knee extensors.Mikio ShojiRyoichi EmaKazunori NosakaAkihiro KandaAkihiro KandaKosuke HirataRyota AkagiRyota AkagiFrontiers Media S.A.articlemaximal voluntary isometric contractionrecovery ratemuscle sorenessvoluntary activationpotentiated doublet torqueshear modulusPhysiologyQP1-981ENFrontiers in Physiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	maximal voluntary isometric contraction recovery rate muscle soreness voluntary activation potentiated doublet torque shear modulus Physiology QP1-981
spellingShingle	maximal voluntary isometric contraction recovery rate muscle soreness voluntary activation potentiated doublet torque shear modulus Physiology QP1-981 Mikio Shoji Ryoichi Ema Kazunori Nosaka Akihiro Kanda Akihiro Kanda Kosuke Hirata Ryota Akagi Ryota Akagi Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
description	The present study examined if the magnitude of changes in indirect muscle damage markers could be predicted by maximal voluntary isometric contraction (MVIC) torque changes from immediately to 1 day after eccentric exercise. Twenty-eight young men performed 100 maximal isokinetic (60°/s) eccentric contractions of the knee extensors. MVIC torque, potentiated doublet torque, voluntary activation (VA) during MVIC, shear modulus of rectus femoris (RF), vastus medialis and lateralis, and muscle soreness of these muscles were measured before, immediately after, and 1–3 days post-exercise. Based on the recovery rate of the MVIC torque from immediately to 1-day post-exercise, the participants were placed to a recovery group that showed an increase in the MVIC torque (11.3–79.9%, n = 15) or a no-recovery group that showed no recovery (−71.9 to 0%, n = 13). No significant difference in MVIC torque decrease immediately post-exercise was found between the recovery (−33 ± 12%) and no-recovery (−32 ± 9%) groups. At 1–3 days, changes in MVIC torque (−40 to −26% vs. −22 to −12%), potentiated doublet torque (−37 to −22% vs. −20 to −9%), and proximal RF shear modulus (29–34% vs. 8–15%) were greater (p < 0.05) for the no-recovery than recovery group. No significant group differences were found for muscle soreness. The recovery rate of MVIC torque was correlated (p < 0.05) with the change in MVIC torque from baseline to 2 (r = 0.624) or 3 days post-exercise (r = 0.526), or peak change in potentiated doublet torque at 1–3 days post-exercise from baseline (r = 0.691), but not correlated with the changes in other dependent variables. These results suggest that the recovery rate of MVIC torque predicts changes in neuromuscular function but not muscle soreness and stiffness following eccentric exercise of the knee extensors.
format	article
author	Mikio Shoji Ryoichi Ema Kazunori Nosaka Akihiro Kanda Akihiro Kanda Kosuke Hirata Ryota Akagi Ryota Akagi
author_facet	Mikio Shoji Ryoichi Ema Kazunori Nosaka Akihiro Kanda Akihiro Kanda Kosuke Hirata Ryota Akagi Ryota Akagi
author_sort	Mikio Shoji
title	Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
title_short	Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
title_full	Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
title_fullStr	Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
title_full_unstemmed	Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors
title_sort	muscle damage indicated by maximal voluntary contraction strength changes from immediately to 1 day after eccentric exercise of the knee extensors
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ec94a5b98e454f34860bc9ed1777b2cc
work_keys_str_mv	AT mikioshoji muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT ryoichiema muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT kazunorinosaka muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT akihirokanda muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT akihirokanda muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT kosukehirata muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT ryotaakagi muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors AT ryotaakagi muscledamageindicatedbymaximalvoluntarycontractionstrengthchangesfromimmediatelyto1dayaftereccentricexerciseofthekneeextensors
_version_	1718425897016492032

Muscle Damage Indicated by Maximal Voluntary Contraction Strength Changes From Immediately to 1 Day After Eccentric Exercise of the Knee Extensors

Ejemplares similares