Acute caffeine mouth rinsing does not improve 10-km running performance in CYP1A2 C-allele carriers

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dc.contributor.authorFigueiredo, Nayra
dc.contributor.authorQueiroz, Marcela
dc.contributor.authorFelicio, Fernanda P.
dc.contributor.authorFerreira, Jessica
dc.contributor.authorGerosa-Neto, Jose [UNESP]
dc.contributor.authorMota, Jo Ao F.
dc.contributor.authorSilva, Christielly R. da
dc.contributor.authorGhedini, Paulo C.
dc.contributor.authorSaunders, Bryan
dc.contributor.authorPimentel, Gustavo D.
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2021-06-25T12:41:23Z
dc.date.available2021-06-25T12:41:23Z
dc.date.issued2021-04-01
dc.description.abstractPurpose: This study assessed whether caffeine mouth rinsing affects 10-km run performance and vertical jump in recreational runners. Methods: A double-blind, placebo-controlled, crossover study was conducted. Ten well-trained volunteers performed two trials, following caffeine or placebo mouth rinse, separated by seven days. Immediately before the 10-km run, a 10-second mouth rinse with either 300 mg of caffeine (1.2%) or microcrystalline cellulose (placebo) diluted in 25 mL of water was performed. Pre- and post-exercise, participants performed a vertical jump test. A Garmin Forerunner (R) GPS, was used to measure 10-km running time and an 11-point Borg scale was used post-exercise to measure ratings of perceived exertion. Blood samples were also collected during the visit in the laboratory in the afternoon period to classify individuals according to their CYP1A2 genotype. Vertical jump performance was evaluated using a force plate. Results: Nine runners (90%) were CC homozygotes and one (10%) was an AC heterozygote for CYP1A2. There was no difference in 10-km time-trial performance (Placebo: 47.07 +/- 5.18 vs. CAF: 47.45 +/- 6.34 min, p = 0.89), ratings of perceived exertion (Placebo: 17 +/- 1 vs. CAF: 16 +/- 2, p = 0.34) or vertical jump power (Placebo, Pre: 4.5 +/- 0.6 W.kg-1 and Post: 4.5 +/- 0.7 W.kg-1; CAF: Pre: 4.4 +/- 0.7 W.kg-1 and Post: 4.4 +/- 0.8 W.kg-1, d = 0.21, p = 0.66) between trials. Conclusion: Acute caffeine mouth rinsing (1.2%) did not improve 10-km performance and showed similar null effects on vertical jump performance in CYP1A2 C-allele carriers. (C) 2021 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Fed Goias, Fac Nutr, Clin & Sports Nutr Res Lab, Goiania, Go, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Phys Educ, Exercise & Immunometab Res Grp, Presidente Prudente, Brazil
dc.description.affiliationUniv Fed Goias, Inst Biol Sci, Goiania, Go, Brazil
dc.description.affiliationUniv Sao Paulo, Fac Med FMUSP, Sch Phys Educ & Sport, Appl Physiol & Nutr Res Grp,Rheumatol Div, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Fac Med FMUSP, Inst Orthoped & Traumatol, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Phys Educ, Exercise & Immunometab Res Grp, Presidente Prudente, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2016/50438-0
dc.format.extent93-97
dc.identifierhttp://dx.doi.org/10.1016/j.clnesp.2021.02.012
dc.identifier.citationClinical Nutrition Espen. Amsterdam: Elsevier, v. 42, p. 93-97, 2021.
dc.identifier.doi10.1016/j.clnesp.2021.02.012
dc.identifier.issn2405-4577
dc.identifier.urihttp://hdl.handle.net/11449/210156
dc.identifier.wosWOS:000632863600010
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofClinical Nutrition Espen
dc.sourceWeb of Science
dc.subjectCaffeine
dc.subjectCYP1A2
dc.subjectMouth rinse
dc.subjectRunning
dc.subjectGenotype
dc.subjectErgogenic aid
dc.titleAcute caffeine mouth rinsing does not improve 10-km running performance in CYP1A2 C-allele carriersen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

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