Influence of the selection from incremental stages on lactate minimum intensity: a pilot study.
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p715 |
Resumo: | The purposes of this study were to assess the influence of stage selection from the incremental phase and the use of peak lactate after hyperlactatemia induction on the determination of the lactate minimum intensity (iLACmin). Twelve moderately active university students (23±5 years, 78.3±14.1 kg, 175.3±5.1 cm) performed a maximal incremental test to determine the respiratory compensation point (RCP) (initial intensity at 70 W and increments of 17.5 W every 2 minutes) and a lactate minimum test (induction with the Wingate test, the incremental test started at 30 W below RCP with increments of 10 W every 3 minutes) on a cycle ergometer. The iLACmin was determined using second order polynomial adjustment applying five exercise stage selection: 1) using all stages (iLACmin P); 2) using all stages below and two stages above iLACminP (iLACminA); 3) using two stages below and all stages above iLACminP (iLACminB); 4) using the largest and same possible number of stages below and above the iLACminP (iLACminI); 5) using all stages and peak lactate after hyperlactatemia induction (iLACminD). No differences were found between the iLACminP (138.2±30.2 W), iLACminA (139.1±29.1 W), iLACminB (135.3±14.2 W), iLACminI (138.6±20.5 W) and iLACmiD (136.7±28.5 W) protocols, and a high level of agreement between these intensities and iLACminP was observed. Oxygen uptake, heart rate, rating of perceived exertion and lactate corresponding to these intensities was not different and was strongly correlated. However, the iLACminB presented the lowest success rate (66.7%). In conclusion, stage selection did not influence the determination of iLACmin but modified the success rate. |
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Influence of the selection from incremental stages on lactate minimum intensity: a pilot study.Influência da seleção dos estágios incrementais sobre a intensidade de lactato mínimo: estudo pilotoThe purposes of this study were to assess the influence of stage selection from the incremental phase and the use of peak lactate after hyperlactatemia induction on the determination of the lactate minimum intensity (iLACmin). Twelve moderately active university students (23±5 years, 78.3±14.1 kg, 175.3±5.1 cm) performed a maximal incremental test to determine the respiratory compensation point (RCP) (initial intensity at 70 W and increments of 17.5 W every 2 minutes) and a lactate minimum test (induction with the Wingate test, the incremental test started at 30 W below RCP with increments of 10 W every 3 minutes) on a cycle ergometer. The iLACmin was determined using second order polynomial adjustment applying five exercise stage selection: 1) using all stages (iLACmin P); 2) using all stages below and two stages above iLACminP (iLACminA); 3) using two stages below and all stages above iLACminP (iLACminB); 4) using the largest and same possible number of stages below and above the iLACminP (iLACminI); 5) using all stages and peak lactate after hyperlactatemia induction (iLACminD). No differences were found between the iLACminP (138.2±30.2 W), iLACminA (139.1±29.1 W), iLACminB (135.3±14.2 W), iLACminI (138.6±20.5 W) and iLACmiD (136.7±28.5 W) protocols, and a high level of agreement between these intensities and iLACminP was observed. Oxygen uptake, heart rate, rating of perceived exertion and lactate corresponding to these intensities was not different and was strongly correlated. However, the iLACminB presented the lowest success rate (66.7%). In conclusion, stage selection did not influence the determination of iLACmin but modified the success rate.Os objetivos foram verificar a influência da seleção de estágios da fase incremental e o uso do lactato pico após indução hiperlactacidêmica na determinação da intensidade de lactato mínimo (iLACmin). Doze universitários moderadamente ativos (23±5 anos, 78,3±14,1 kg, 175,3±5,1 cm) realizaram um teste incremental máximo para determinação do ponto de compensação respiratório (PCR) (início a 70 W e incrementos de 17,5 W a cada 2 minutos) e um teste de lactato mínimo (indução com Wingate, fase incremental iniciado a 30 W abaixo do PCR e incrementos de 10 W a cada 3 minutos) em cicloergômetro. A iLACmin foi determinada utilizando ajuste polinomial de segunda ordem, aplicando cinco seleções de estágios da fase incremental: 1) Utilizando todos os estágios obtidos (iLACminP); 2) Utilizando todos os estágios antes e dois após à iLACminP (iLACminA); 3) Utilizando dois estágios antes e todos após à iLACminP (iLACminB); 4) Utilizando o maior e mesmo número possível de estágios anteriores e posteriores à iLACminP (iLACminI); 5) Utilizando todos os estágios e o lactato pico após indução (iLACminD). Não foram encontradas diferenças entre iLACminP (138,2±30,2 W), iLACminA (139,1±29,1 W), iLACminB (135,3±14,2 W), iLACmin I (138,6±20,5 W), iLACmiD (136,7±28,5 W) e verificou-se alta concordância entre essas intensidades e iLACminP. O consumo de oxigênio, frequência cardíaca, percepção subjetiva de esforço e lactato nessas intensidades não diferiram e foram fortemente correlacionadas. Entretanto, a iLACminB apresentou o menor índice de sucesso (66,7%). Conclui-se que a seleção de estágios não influenciou na determinação da iLACmin, mas alterou o índice de sucesso.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2013-08-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",ExperimentalAvaliado por ParesPesquisa experimentalapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p71510.1590/1980-0037.2013v15n6p715Brazilian Journal of Kinanthropometry and Human Performance; Vol. 15 No. 6 (2013); 715-725Revista Brasileira de Cineantropometria e Desempenho Humano; v. 15 n. 6 (2013); 715-7251980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p715/25371Miyagi, Willian EijiLeite, Jorge Vieira de MelloZagatto, Alessandro Mourainfo:eu-repo/semantics/openAccess2022-11-21T14:14:57Zoai:periodicos.ufsc.br:article/27454Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2022-11-21T14:14:57Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. Influência da seleção dos estágios incrementais sobre a intensidade de lactato mínimo: estudo piloto |
title |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
spellingShingle |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. Miyagi, Willian Eiji |
title_short |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
title_full |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
title_fullStr |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
title_full_unstemmed |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
title_sort |
Influence of the selection from incremental stages on lactate minimum intensity: a pilot study. |
author |
Miyagi, Willian Eiji |
author_facet |
Miyagi, Willian Eiji Leite, Jorge Vieira de Mello Zagatto, Alessandro Moura |
author_role |
author |
author2 |
Leite, Jorge Vieira de Mello Zagatto, Alessandro Moura |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Miyagi, Willian Eiji Leite, Jorge Vieira de Mello Zagatto, Alessandro Moura |
description |
The purposes of this study were to assess the influence of stage selection from the incremental phase and the use of peak lactate after hyperlactatemia induction on the determination of the lactate minimum intensity (iLACmin). Twelve moderately active university students (23±5 years, 78.3±14.1 kg, 175.3±5.1 cm) performed a maximal incremental test to determine the respiratory compensation point (RCP) (initial intensity at 70 W and increments of 17.5 W every 2 minutes) and a lactate minimum test (induction with the Wingate test, the incremental test started at 30 W below RCP with increments of 10 W every 3 minutes) on a cycle ergometer. The iLACmin was determined using second order polynomial adjustment applying five exercise stage selection: 1) using all stages (iLACmin P); 2) using all stages below and two stages above iLACminP (iLACminA); 3) using two stages below and all stages above iLACminP (iLACminB); 4) using the largest and same possible number of stages below and above the iLACminP (iLACminI); 5) using all stages and peak lactate after hyperlactatemia induction (iLACminD). No differences were found between the iLACminP (138.2±30.2 W), iLACminA (139.1±29.1 W), iLACminB (135.3±14.2 W), iLACminI (138.6±20.5 W) and iLACmiD (136.7±28.5 W) protocols, and a high level of agreement between these intensities and iLACminP was observed. Oxygen uptake, heart rate, rating of perceived exertion and lactate corresponding to these intensities was not different and was strongly correlated. However, the iLACminB presented the lowest success rate (66.7%). In conclusion, stage selection did not influence the determination of iLACmin but modified the success rate. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Experimental Avaliado por Pares Pesquisa experimental |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p715 10.1590/1980-0037.2013v15n6p715 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p715 |
identifier_str_mv |
10.1590/1980-0037.2013v15n6p715 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2013v15n6p715/25371 |
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 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. 15 No. 6 (2013); 715-725 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 15 n. 6 (2013); 715-725 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 |
_version_ |
1789435123399131136 |