Effect of the ingestion of caffeine on perceived exertion threshold (PET)

Detalhes bibliográficos
Autor(a) principal: Triana, Ricardo Okada
Data de Publicação: 2008
Outros Autores: Machado, Marcus Vinícius, Altimari, Leandro Ricardo, Fontes, Eduardo Bodnariuc, Smirmaul, Bruno de Paula Caraça, Gonçalves, Ezequiel Moreira, Batista, Alexandre Rosas, Okano, Alexandre Hideki, Moraes, Antônio Carlos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Motriz (Online)
Texto Completo: https://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/1441
Resumo: Caffeine is an ergogenic substance used to enhance sports performance. With central and peripheral effects, it may influences the perception of fatigue during exhaustive efforts with central and peripheral effects. The present study aimed to investigate the effects of caffeine ingestion on the perceived exertion threshold (PET). After completing maximum work load (Wmax) test on cycling ergometer, eight men executed four constant load tests (80, 90, 100 and 110% of Wmax) under caffeine (CAF) or placebo (PLA) ingestion for PET determination. The “t” Student paired test was used to compare PET under the analyzed conditions. There were no significant differences between CAF and PLA conditions for PET. However, during 100 and 110% constant load tests, CAF conditions presented longer exhausting time (P < 0,01) and the tests between 80% and 100% presented lower increasing ratings of perceived exertion (RPE) (P < 0,01). According to the results, it is possible to conclude that PET was not modified with CAF supplementation, even with higher performance during the most intensive tests and attenuation of the increasing rate of RPE in 80% and 100% loads.
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spelling Effect of the ingestion of caffeine on perceived exertion threshold (PET)Efeito da ingestão de cafeína sobre o limiar de esforço percebido (LEP)Suplementação Alimentar. Fadiga. Esforço Físico. Psicofisiologia.Caffeine is an ergogenic substance used to enhance sports performance. With central and peripheral effects, it may influences the perception of fatigue during exhaustive efforts with central and peripheral effects. The present study aimed to investigate the effects of caffeine ingestion on the perceived exertion threshold (PET). After completing maximum work load (Wmax) test on cycling ergometer, eight men executed four constant load tests (80, 90, 100 and 110% of Wmax) under caffeine (CAF) or placebo (PLA) ingestion for PET determination. The “t” Student paired test was used to compare PET under the analyzed conditions. There were no significant differences between CAF and PLA conditions for PET. However, during 100 and 110% constant load tests, CAF conditions presented longer exhausting time (P < 0,01) and the tests between 80% and 100% presented lower increasing ratings of perceived exertion (RPE) (P < 0,01). According to the results, it is possible to conclude that PET was not modified with CAF supplementation, even with higher performance during the most intensive tests and attenuation of the increasing rate of RPE in 80% and 100% loads.A cafeína é substância ergogênica utilizada para aprimorar o rendimento esportivo. Com efeitos centrais e periféricos, pode interferir na percepção de fadiga durante esforços exaustivos. O presente estudo objetivou investigar o efeito da ingestão de cafeína sobre o limiar de esforço percebido (LEP). Após estabelecer a carga máxima de trabalho (Wmax) por teste incremental em cicloergômetro, oito homens realizaram quatro testes de carga constante (80, 90, 100 e 110% da Wmax) sob ingestão de cafeína (CAF) ou placebo (PLA) para determinação do LEP. Para contrastar os dados, utilizou-se o teste “t” de Student pareado. Não foram encontradas diferenças significativas entre os valores de LEP em nenhuma das condições, porém, na condição CAF os testes constantes de 100 e 110% apresentaram maior tempo de exaustão (P < 0,01), e os testes de 80 e 100% apresentaram menor taxa de aumento da percepção subjetiva de esforço (PSE) (P < 0,01). De acordo com os resultados, é possível concluir que o LEP não foi modificado com a suplementação de CAF, mesmo com desempenho superior durante os testes mais intensos e atenuação da taxa de aumento da PSE nas cargas 80 e 100%.Universidade Estadual Paulista - Câmpus de Rio Claro2008-12-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionDocumento Avaliado por ParesPesquisa Empírica de Campoapplication/pdfhttps://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/144110.5016/1441Motriz. Journal of Physical Education. UNESP; V. 14, N. 3 (2008); 300-309Motriz Revista de Educação Física; V. 14, N. 3 (2008); 300-3091980-6574reponame:Motriz (Online)instname:Universidade Estadual Paulista (UNESP)instacron:UNESPporhttps://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/1441/1889Triana, Ricardo OkadaMachado, Marcus ViníciusAltimari, Leandro RicardoFontes, Eduardo BodnariucSmirmaul, Bruno de Paula CaraçaGonçalves, Ezequiel MoreiraBatista, Alexandre RosasOkano, Alexandre HidekiMoraes, Antônio Carlosinfo:eu-repo/semantics/openAccess2013-04-18T19:25:21Zoai:periodicos.rc.biblioteca.unesp.br:article/1441Revistahttp://www.periodicos.rc.biblioteca.unesp.br/index.php/motrizPUBhttps://old.scielo.br/oai/scielo-oai.phpmotriz@rc.unesp.br||mauerber@rc.unesp.br||azanesco@rc.unesp.br1980-65741415-9805opendoar:2013-04-18T19:25:21Motriz (Online) - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of the ingestion of caffeine on perceived exertion threshold (PET)
Efeito da ingestão de cafeína sobre o limiar de esforço percebido (LEP)
title Effect of the ingestion of caffeine on perceived exertion threshold (PET)
spellingShingle Effect of the ingestion of caffeine on perceived exertion threshold (PET)
Triana, Ricardo Okada
Suplementação Alimentar. Fadiga. Esforço Físico. Psicofisiologia.
title_short Effect of the ingestion of caffeine on perceived exertion threshold (PET)
title_full Effect of the ingestion of caffeine on perceived exertion threshold (PET)
title_fullStr Effect of the ingestion of caffeine on perceived exertion threshold (PET)
title_full_unstemmed Effect of the ingestion of caffeine on perceived exertion threshold (PET)
title_sort Effect of the ingestion of caffeine on perceived exertion threshold (PET)
author Triana, Ricardo Okada
author_facet Triana, Ricardo Okada
Machado, Marcus Vinícius
Altimari, Leandro Ricardo
Fontes, Eduardo Bodnariuc
Smirmaul, Bruno de Paula Caraça
Gonçalves, Ezequiel Moreira
Batista, Alexandre Rosas
Okano, Alexandre Hideki
Moraes, Antônio Carlos
author_role author
author2 Machado, Marcus Vinícius
Altimari, Leandro Ricardo
Fontes, Eduardo Bodnariuc
Smirmaul, Bruno de Paula Caraça
Gonçalves, Ezequiel Moreira
Batista, Alexandre Rosas
Okano, Alexandre Hideki
Moraes, Antônio Carlos
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Triana, Ricardo Okada
Machado, Marcus Vinícius
Altimari, Leandro Ricardo
Fontes, Eduardo Bodnariuc
Smirmaul, Bruno de Paula Caraça
Gonçalves, Ezequiel Moreira
Batista, Alexandre Rosas
Okano, Alexandre Hideki
Moraes, Antônio Carlos
dc.subject.por.fl_str_mv Suplementação Alimentar. Fadiga. Esforço Físico. Psicofisiologia.
topic Suplementação Alimentar. Fadiga. Esforço Físico. Psicofisiologia.
description Caffeine is an ergogenic substance used to enhance sports performance. With central and peripheral effects, it may influences the perception of fatigue during exhaustive efforts with central and peripheral effects. The present study aimed to investigate the effects of caffeine ingestion on the perceived exertion threshold (PET). After completing maximum work load (Wmax) test on cycling ergometer, eight men executed four constant load tests (80, 90, 100 and 110% of Wmax) under caffeine (CAF) or placebo (PLA) ingestion for PET determination. The “t” Student paired test was used to compare PET under the analyzed conditions. There were no significant differences between CAF and PLA conditions for PET. However, during 100 and 110% constant load tests, CAF conditions presented longer exhausting time (P < 0,01) and the tests between 80% and 100% presented lower increasing ratings of perceived exertion (RPE) (P < 0,01). According to the results, it is possible to conclude that PET was not modified with CAF supplementation, even with higher performance during the most intensive tests and attenuation of the increasing rate of RPE in 80% and 100% loads.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-08
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Documento Avaliado por Pares
Pesquisa Empírica de Campo
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/1441
10.5016/1441
url https://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/1441
identifier_str_mv 10.5016/1441
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/1441/1889
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual Paulista - Câmpus de Rio Claro
publisher.none.fl_str_mv Universidade Estadual Paulista - Câmpus de Rio Claro
dc.source.none.fl_str_mv Motriz. Journal of Physical Education. UNESP; V. 14, N. 3 (2008); 300-309
Motriz Revista de Educação Física; V. 14, N. 3 (2008); 300-309
1980-6574
reponame:Motriz (Online)
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Motriz (Online)
collection Motriz (Online)
repository.name.fl_str_mv Motriz (Online) - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv motriz@rc.unesp.br||mauerber@rc.unesp.br||azanesco@rc.unesp.br
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