The effect of caffeine chewing gum on muscle performance and fatigue after severe-intensity exercise: isometric vs. dynamic assessments in trained cyclists

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Autor(es): dc.contributorUniversidade Federal de Santa Catarina (UFSC)-
Autor(es): dc.contributorUniversity of Santa Catarina State-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorNascimento, Eduardo Marcel Fernandes-
Autor(es): dc.creatorBorszcz, Fernando Klitzke-
Autor(es): dc.creatorVentura, Thiago Pereira-
Autor(es): dc.creatorDenadai, Benedito Sérgio-
Autor(es): dc.creatorGuglielmo, Luiz Guilherme Antonacci-
Autor(es): dc.creatorde Lucas, Ricardo Dantas-
Data de aceite: dc.date.accessioned2025-08-21T17:47:15Z-
Data de disponibilização: dc.date.available2025-08-21T17:47:15Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00421-024-05617-w-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306865-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306865-
Descrição: dc.descriptionThis study investigated the effect of caffeinated chewing gum (GUMCAF) on muscle fatigue (isometric vs. dynamic) after severe-intensity cycling bouts. Fifteen trained male cyclists participated in four visits. Each visit involved two severe-intensity cycling bouts (Δ1 and Δ2) lasting 6 min, separated by a 5-min recovery period. Muscle fatigue was assessed by isometric maximal voluntary knee extension contraction (IMVC) with twitch interpolation technique and dynamically by 7 s all-out cycling sprints. Assessments were performed before GUMCAF (Pre-GUM) and after the cycling bouts (Post-Exercise). GUMCAF and placebo gum (GUMPLA) were administered in a randomized double-blind procedure with participants receiving each gum type (GUMCAF and GUMPLA) during two separate visits. The results showed no significant interaction between gum types and time for the isometric and dynamic measurements (p > 0.05). The percentage change in performance from Pre-GUM to Post-Exercise showed no significant difference between GUMCAF and GUMPLA for either the dynamic-derived TMAX (~ −17.8% and −15.1%, respectively; p = 0.551) or isometric IMVC (~ −12.3% and −17.7%, respectively; p = 0.091) measurements. Moderate to large correlations (r = 0.31–0.51) were found between changes in sprint maximal torque and maximal power output measurements and isometric force, for both gum conditions. GUMCAF was not effective in attenuating muscle force decline triggered by severe-intensity cycling exercises, as measured by both isometric and dynamic methods. The correlations between IMVC and cycling maximal torque and power output suggest caution when interpreting isometric force as a direct measure of fatigue during dynamic cycling exercises.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionPhysical Effort Laboratory Sports Center Federal University of Santa Catarina-
Descrição: dc.descriptionHuman Performance Research Group Center for Health and Sport Sciences University of Santa Catarina State-
Descrição: dc.descriptionHuman Performance Laboratory São Paulo State University-
Descrição: dc.descriptionHuman Performance Laboratory São Paulo State University-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format483-497-
Idioma: dc.languageen-
Relação: dc.relationEuropean Journal of Applied Physiology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCaffeine-
Palavras-chave: dc.subjectFatigue-
Palavras-chave: dc.subjectIsometric maximal voluntary contraction-
Palavras-chave: dc.subjectMaximal power output-
Palavras-chave: dc.subjectNeuromuscular functions-
Palavras-chave: dc.subjectSprinting-
Título: dc.titleThe effect of caffeine chewing gum on muscle performance and fatigue after severe-intensity exercise: isometric vs. dynamic assessments in trained cyclists-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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