The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans

We hypothesized that prior exercise would attenuate the muscle fatigue accompanied by oxygen uptake slow-component ((V)over dotO(2SC)) behavior during a subsequent very-heavy (VH)-intensity cycling exercise. Thirteen healthy male subjects performed tests to determine the critical power (CP) and the...

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Autores: Nascimento Salvador, Paulo Cesar do, Souza, Kristopher Mendes de, De Lucas, Ricardo Dantas, Antonacci Guglielmo, Luiz Guilherme, Denadai, Benedito Sergio [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/164586
Acesso em linha:http://dx.doi.org/10.1139/apnm-2017-0769
http://hdl.handle.net/11449/164586
Access Level:acceso abierto
Palavra-chave:priming exercise
slow component of oxygen uptake
(V)over dot O-2 kinetics
muscle force production
high-intensity exercise
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spelling The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humanspriming exerciseslow component of oxygen uptake(V)over dot O-2 kineticsmuscle force productionhigh-intensity exerciseWe hypothesized that prior exercise would attenuate the muscle fatigue accompanied by oxygen uptake slow-component ((V)over dotO(2SC)) behavior during a subsequent very-heavy (VH)-intensity cycling exercise. Thirteen healthy male subjects performed tests to determine the critical power (CP) and the fixed amount of work above CP (W') and performed 6 square-wave bouts until 3 or 8 min, each at a work rate set to deplete 70% W' in 8 min, with a maximal isokinetic effort before and after the conditions without (VHCON) and with prior exercise (VHEXP), to measure the cycling peak torque decrement. The (V)over dotO(2SC) magnitude at 3 min (VHCON = 0.280 +/- 0.234, VHEXP, = 0.116 +/- 0.109 L.min(-1) ;p = 0.04) and the (V)over dotO(2SC) trajectory were significantly lower for VHEXP (VHCON = 0.108 +/- 0.042, VHEXP= 0.063 +/- 0.0311:min(-2);p < 0.01), leading to a (V)over dotO(2SC) magnitude at the eighth minute that was significantly lower than VHCON (VHCON = 0.626 +/- 0.296 L.min(-1), VHEXP = 0.337 +/- 0.179; p < 0.01). Conversely, peak torque progressively decreased from pre-exercise to 3 min (Delta torque = 21.5 +/- 7.7 vs. 19.6 +/- 9.2 Nm) and to 8 min (Delta torque = 29.4 +/- 15.8 vs. 27.5 +/- 12.0 Nm) at V-CON and VHEXP, respectively, without significant differences between conditions. Regardless of the condition, there was a significant relationship between Delta torque and the (V)over dotO(2SC) (R-2 : VHCON = 0.23. VHEXP = 0.25; p = 0.01). Considering that priming effects on the (V)over dotO(2SC) were not accompanied by the muscle force behavior, these findings do not support the hypothesis of a causal relationship between the time-course of muscle fatigue and (V)over dotO(2SC).Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Fed Santa Catarina, Sports Ctr, Phys Effort Lab, BR-88040900 Florianopolis, SC, BrazilSao Paulo State Univ, Human Performance Lab, BR-13506900 Rio Claro, BrazilSao Paulo State Univ, Human Performance Lab, BR-13506900 Rio Claro, BrazilCanadian Science Publishing, Nrc Research PressUniversidade Federal de Santa Catarina (UFSC)Universidade Estadual Paulista (Unesp)2018-11-26T17:55:12Z2018-11-26T17:55:12Z2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article909-919http://dx.doi.org/10.1139/apnm-2017-0769Applied Physiology Nutrition And Metabolism. Ottawa: Canadian Science Publishing, Nrc Research Press, v. 43, n. 9, p. 909-919, 2018.1715-5312http://hdl.handle.net/11449/16458610.1139/apnm-2017-0769WOS:000443136700007Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Physiology Nutrition And Metabolism1,112info:eu-repo/semantics/openAccessNascimento Salvador, Paulo Cesar doSouza, Kristopher Mendes deDe Lucas, Ricardo DantasAntonacci Guglielmo, Luiz GuilhermeDenadai, Benedito Sergio [UNESP]2024-10-21T14:27:36Zoai:repositorio.unesp.br:11449/164586Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-10-21T14:27:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
title The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
spellingShingle The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
Nascimento Salvador, Paulo Cesar do
priming exercise
slow component of oxygen uptake
(V)over dot O-2 kinetics
muscle force production
high-intensity exercise
title_short The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
title_full The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
title_fullStr The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
title_full_unstemmed The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
title_sort The effects of priming exercise on the (V)over dotO(2) slow component and the time-course of muscle fatigue during very-heavy-intensity exercise in humans
dc.creator.none.fl_str_mv Nascimento Salvador, Paulo Cesar do
Souza, Kristopher Mendes de
De Lucas, Ricardo Dantas
Antonacci Guglielmo, Luiz Guilherme
Denadai, Benedito Sergio [UNESP]
author Nascimento Salvador, Paulo Cesar do
author_facet Nascimento Salvador, Paulo Cesar do
Souza, Kristopher Mendes de
De Lucas, Ricardo Dantas
Antonacci Guglielmo, Luiz Guilherme
Denadai, Benedito Sergio [UNESP]
author_role author
author2 Souza, Kristopher Mendes de
De Lucas, Ricardo Dantas
Antonacci Guglielmo, Luiz Guilherme
Denadai, Benedito Sergio [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Santa Catarina (UFSC)
Universidade Estadual Paulista (Unesp)
dc.subject.por.fl_str_mv priming exercise
slow component of oxygen uptake
(V)over dot O-2 kinetics
muscle force production
high-intensity exercise
topic priming exercise
slow component of oxygen uptake
(V)over dot O-2 kinetics
muscle force production
high-intensity exercise
description We hypothesized that prior exercise would attenuate the muscle fatigue accompanied by oxygen uptake slow-component ((V)over dotO(2SC)) behavior during a subsequent very-heavy (VH)-intensity cycling exercise. Thirteen healthy male subjects performed tests to determine the critical power (CP) and the fixed amount of work above CP (W') and performed 6 square-wave bouts until 3 or 8 min, each at a work rate set to deplete 70% W' in 8 min, with a maximal isokinetic effort before and after the conditions without (VHCON) and with prior exercise (VHEXP), to measure the cycling peak torque decrement. The (V)over dotO(2SC) magnitude at 3 min (VHCON = 0.280 +/- 0.234, VHEXP, = 0.116 +/- 0.109 L.min(-1) ;p = 0.04) and the (V)over dotO(2SC) trajectory were significantly lower for VHEXP (VHCON = 0.108 +/- 0.042, VHEXP= 0.063 +/- 0.0311:min(-2);p < 0.01), leading to a (V)over dotO(2SC) magnitude at the eighth minute that was significantly lower than VHCON (VHCON = 0.626 +/- 0.296 L.min(-1), VHEXP = 0.337 +/- 0.179; p < 0.01). Conversely, peak torque progressively decreased from pre-exercise to 3 min (Delta torque = 21.5 +/- 7.7 vs. 19.6 +/- 9.2 Nm) and to 8 min (Delta torque = 29.4 +/- 15.8 vs. 27.5 +/- 12.0 Nm) at V-CON and VHEXP, respectively, without significant differences between conditions. Regardless of the condition, there was a significant relationship between Delta torque and the (V)over dotO(2SC) (R-2 : VHCON = 0.23. VHEXP = 0.25; p = 0.01). Considering that priming effects on the (V)over dotO(2SC) were not accompanied by the muscle force behavior, these findings do not support the hypothesis of a causal relationship between the time-course of muscle fatigue and (V)over dotO(2SC).
publishDate 2018
dc.date.none.fl_str_mv 2018-11-26T17:55:12Z
2018-11-26T17:55:12Z
2018-09-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1139/apnm-2017-0769
Applied Physiology Nutrition And Metabolism. Ottawa: Canadian Science Publishing, Nrc Research Press, v. 43, n. 9, p. 909-919, 2018.
1715-5312
http://hdl.handle.net/11449/164586
10.1139/apnm-2017-0769
WOS:000443136700007
url http://dx.doi.org/10.1139/apnm-2017-0769
http://hdl.handle.net/11449/164586
identifier_str_mv Applied Physiology Nutrition And Metabolism. Ottawa: Canadian Science Publishing, Nrc Research Press, v. 43, n. 9, p. 909-919, 2018.
1715-5312
10.1139/apnm-2017-0769
WOS:000443136700007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Applied Physiology Nutrition And Metabolism
1,112
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 909-919
dc.publisher.none.fl_str_mv Canadian Science Publishing, Nrc Research Press
publisher.none.fl_str_mv Canadian Science Publishing, Nrc Research Press
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
_version_ 1853671461189844992
score 15,301603

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