Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320 |
Resumo: | The objective of this study was to determine the validity of maximum lactate steady state (MLSS) for the identification of the upper limit of the heavy-intensity domain in well-trained cyclists. Fourteen male cyclists (25.5 ± 4.4 years, 69.5 ± 7.8 kg, 175.8 ± 7.5 cm) underwent the following tests on different days: incremental exercise test until exhaustion to determine peak oxygen uptake (VO2peak), and 2 to 4 constant submaximal load tests to determine MLSS. VO2 obtained in the 30th min was significantly higher than that obtained in the 3rd min of exercise performed at 100% MLSS (3379.3 ± 250.1 vs. 3496.7 ± 280.2 ml/min, p<0.05) and 105% MLSS (3439.5 ± 289.3 vs. 3545.5 ± 303.2 ml/min, p < 0.05). VO2 obtained in the 30th min of exercise performed at 100% and 105% MLSS was significantly lower than VO2peak (3978.6 ± 296.2 ml/min, p > 0.05). These results suggest that during heavy exercise (MLSS) VO2 does not present stability when values obtained around the 3rd minute of exercise are used as reference. MLSS does not seem to be the upper limit of the heavy-intensity domain in trained subjects since VO2peak is not reached by the end of 30 min of exercise when exercise is performed above this intensity (~ 5%). |
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Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclistsMáxima fase estável de lactato sanguíneo e o limite superior do domínio pesado em ciclistas treinadosThe objective of this study was to determine the validity of maximum lactate steady state (MLSS) for the identification of the upper limit of the heavy-intensity domain in well-trained cyclists. Fourteen male cyclists (25.5 ± 4.4 years, 69.5 ± 7.8 kg, 175.8 ± 7.5 cm) underwent the following tests on different days: incremental exercise test until exhaustion to determine peak oxygen uptake (VO2peak), and 2 to 4 constant submaximal load tests to determine MLSS. VO2 obtained in the 30th min was significantly higher than that obtained in the 3rd min of exercise performed at 100% MLSS (3379.3 ± 250.1 vs. 3496.7 ± 280.2 ml/min, p<0.05) and 105% MLSS (3439.5 ± 289.3 vs. 3545.5 ± 303.2 ml/min, p < 0.05). VO2 obtained in the 30th min of exercise performed at 100% and 105% MLSS was significantly lower than VO2peak (3978.6 ± 296.2 ml/min, p > 0.05). These results suggest that during heavy exercise (MLSS) VO2 does not present stability when values obtained around the 3rd minute of exercise are used as reference. MLSS does not seem to be the upper limit of the heavy-intensity domain in trained subjects since VO2peak is not reached by the end of 30 min of exercise when exercise is performed above this intensity (~ 5%).O objetivo deste estudo foi verificar se a máxima fase estável de lactato (MLSS) delimita o limite superior do domínio pesado em ciclistas bem treinados. Quatorze ciclistas do sexo masculino (25,5 ± 4,4 anos, 69.5 ± 7,8 kg, 175,8 ± 7,5 cm) realizaram, em diferentes dias, os seguintes testes: exercício incremental até a exaustão para a determinação do pico de consumo de oxigênio (VO2pico) e; 2 a 4 testes de carga constante com duração de até 30 minutos para a determinação da MLSS. O valor do VO2 obtido no 30° min de exercício foi estatisticamente maior que o valor obtido no 3° min de exercício a 100%MLSS (3379,3 ± 250,1 vs. 3496,7 ± 280,2 ml/min, p < 0,05) e a 105% MLSS (3439,5 ± 289,3 vs. 3545,5 ± 303,2 ml/min, p<0,05). O VO2 obtido no 30° min no exercício realizado tanto a 100%MLSS quanto a 105%MLSS foi significantemente menor do que o VO2pico (3978,6 ± 296,2 ml/ min, p > 0,05). Com base nestes resultados, pode-se concluir que durante o exercício pesado (MLSS) o VO2 não apresenta estabilidade, tomando como referência os valores obtidos por volta do 3° minuto de exercício. Em indivíduos treinados, a MLSS não parece ser o limite superior do domínio pesado, pois quando o exercício é realizado acima desta (~ 5%), o VO2pico não é alcançado ao final de 30 minutos de exercício.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Avaliado por ParesExperimentalapplication/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p32010.1590/1980-0037.2009v11n3p320Brazilian Journal of Kinanthropometry and Human Performance; Vol. 11 No. 3 (2009); 320-325Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 3 (2009); 320-3251980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320/10319https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320/16501Barbosa, Luis FabianoSouza, Mariana Rosada dePelarigo, Jailton GregórioCaritá, Renato Aparecido CorrêaCaputo, FabrizioDenadai, Benedito SergioGreco, Camila Coelhoinfo:eu-repo/semantics/openAccess2020-01-22T10:31:28Zoai:periodicos.ufsc.br:article/10838Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2020-01-22T10:31:28Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists Máxima fase estável de lactato sanguíneo e o limite superior do domínio pesado em ciclistas treinados |
title |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
spellingShingle |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists Barbosa, Luis Fabiano |
title_short |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
title_full |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
title_fullStr |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
title_full_unstemmed |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
title_sort |
Maximal lactate steady state and the upper boundary of heavy intensity domain in trained cyclists |
author |
Barbosa, Luis Fabiano |
author_facet |
Barbosa, Luis Fabiano Souza, Mariana Rosada de Pelarigo, Jailton Gregório Caritá, Renato Aparecido Corrêa Caputo, Fabrizio Denadai, Benedito Sergio Greco, Camila Coelho |
author_role |
author |
author2 |
Souza, Mariana Rosada de Pelarigo, Jailton Gregório Caritá, Renato Aparecido Corrêa Caputo, Fabrizio Denadai, Benedito Sergio Greco, Camila Coelho |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Barbosa, Luis Fabiano Souza, Mariana Rosada de Pelarigo, Jailton Gregório Caritá, Renato Aparecido Corrêa Caputo, Fabrizio Denadai, Benedito Sergio Greco, Camila Coelho |
description |
The objective of this study was to determine the validity of maximum lactate steady state (MLSS) for the identification of the upper limit of the heavy-intensity domain in well-trained cyclists. Fourteen male cyclists (25.5 ± 4.4 years, 69.5 ± 7.8 kg, 175.8 ± 7.5 cm) underwent the following tests on different days: incremental exercise test until exhaustion to determine peak oxygen uptake (VO2peak), and 2 to 4 constant submaximal load tests to determine MLSS. VO2 obtained in the 30th min was significantly higher than that obtained in the 3rd min of exercise performed at 100% MLSS (3379.3 ± 250.1 vs. 3496.7 ± 280.2 ml/min, p<0.05) and 105% MLSS (3439.5 ± 289.3 vs. 3545.5 ± 303.2 ml/min, p < 0.05). VO2 obtained in the 30th min of exercise performed at 100% and 105% MLSS was significantly lower than VO2peak (3978.6 ± 296.2 ml/min, p > 0.05). These results suggest that during heavy exercise (MLSS) VO2 does not present stability when values obtained around the 3rd minute of exercise are used as reference. MLSS does not seem to be the upper limit of the heavy-intensity domain in trained subjects since VO2peak is not reached by the end of 30 min of exercise when exercise is performed above this intensity (~ 5%). |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Avaliado por Pares Experimental |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320 10.1590/1980-0037.2009v11n3p320 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320 |
identifier_str_mv |
10.1590/1980-0037.2009v11n3p320 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320/10319 https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n3p320/16501 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
dc.source.none.fl_str_mv |
Brazilian Journal of Kinanthropometry and Human Performance; Vol. 11 No. 3 (2009); 320-325 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 3 (2009); 320-325 1980-0037 1415-8426 reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
collection |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
rbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br |
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1789435121719312384 |