Protective Effect Conferred by Isometric Preconditioning Against Slow- and Fast-Velocity Eccentric Exercise-Induced Muscle Damage

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Ctr Herminio Ometto-
Autor(es): dc.contributorSalesian Univ Ctr Sao Paulo-
Autor(es): dc.creatorBarreto, Renan Vieira [UNESP]-
Autor(es): dc.creatorRabello de Lima, Leonardo Coelho [UNESP]-
Autor(es): dc.creatorGreco, Camila Coelho [UNESP]-
Autor(es): dc.creatorDenadai, Benedito Sergio [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:09:10Z-
Data de disponibilização: dc.date.available2022-02-22T00:09:10Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2019-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3389/fphys.2019.01203-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196338-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196338-
Descrição: dc.descriptionWe investigated if the same isometric preconditioning protocol (IPP) attenuates the magnitude of muscle damage induced by different maximal eccentric exercise protocols in the elbow flexors. Sixty-four untrained men were assigned to either two experimental or two control groups. Participants in the experimental groups performed an IPP prior to either slow (60 degrees.s(-1) - ISO + ECC-S) or fast (180 degrees.s(-1) - ISO + ECC-F) maximal eccentric contractions (MaxECC). Subjects in the control groups performed slow (ECC-S) or fast (ECC-F) MaxECC without IPP. Maximal isokinetic concentric torque (MVC), muscle soreness (SOR), and muscle thickness (MT) were assessed before, immediately after, and 1-4 days following the MaxECC. Significant (p < 0.05) group vs. time interactions were found for MVC (F = 4,517), SOR (F = 6,318), and MT (F = 1,863). The ECC-S group presented faster (p < 0.05) recovery of MVC and MT and less (p < 0.05) SOR at 96 h post-MaxECC compared with ECC-F group. No significant differences in MVC and MT were found between ECC-S and ECC-F groups following MaxECC. The ISO + ECC-S group showed faster (p < 0.05) recovery of MVC and SOR compared to the ECC-S group. No significant differences were evident between ISO + ECC-S and ECC-S in any variable. The ISO + ECC-F group showed faster (p < 0.05) recovery of all assessed variables compared with the ECC-F group. MVC was greater (p < 0.05) at 48-72 h, and SOR was less (p < 0.05) at 48-96 h in the ISO + ECC-F compared to the ECC-F group. No significant differences were evident between ISO + ECC-S and ISO + ECC-F for any variable. These results show that the IPP accelerated recovery of MVC and SOR for the slow-eccentric exercise condition and attenuated strength loss and SOR in addition to faster recovery of all assessed variables for the fast-eccentric exercise condition. Therefore, the IPP can be used as a strategy to attenuate and accelerate recovery of muscle damage induced by different-velocity eccentric exercises, resulting in greater protection against muscle damage induced by faster velocity.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSao Paulo State Univ, Dept Phys Educ, Human Performance Lab, Rio Claro, Brazil-
Descrição: dc.descriptionUniv Ctr Herminio Ometto, Fac Biol & Hlth Sci, Araras, Brazil-
Descrição: dc.descriptionSalesian Univ Ctr Sao Paulo, Sch Phys Educ, Campinas, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Phys Educ, Human Performance Lab, Rio Claro, Brazil-
Descrição: dc.descriptionFAPESP: 2017/14632-0-
Formato: dc.format11-
Idioma: dc.languageen-
Publicador: dc.publisherFrontiers Media Sa-
Relação: dc.relationFrontiers In Physiology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectmuscle damage-
Palavras-chave: dc.subjecteccentric exercise-
Palavras-chave: dc.subjectrepeated bout effect-
Palavras-chave: dc.subjectstrength loss-
Palavras-chave: dc.subjectdelayed-onset muscle soreness-
Palavras-chave: dc.subjectindex of protection-
Título: dc.titleProtective Effect Conferred by Isometric Preconditioning Against Slow- and Fast-Velocity Eccentric Exercise-Induced Muscle Damage-
Tipo de arquivo: dc.typelivro digital-
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