Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state
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/1980-0037.2009v11n2p174 |
Resumo: | The objectives of this study were to evaluate the validity of the lactate minimum (LM) using a ramp protocol for the determination of LM intensity (LMI), and to estimate the exercise intensity corresponding to maximal blood lactate steady state (MLSS). In addition, the possibility of determining aerobic and anaerobic fitness was investigated. Fourteen male cyclists of regional level performed one LM protocol on a cycle ergometer (Excalibur–Lode) consisting of an incremental test at an initial workload of 75 Watts, with increments of 1 Watt every 6 seconds. Hyperlactatemia was induced by a 30-second Wingate anaerobic test (WAT) (Monark–834E) at a workload corresponding to 8.57% of the volunteer’s body weight. Peak power (11.5±2 Watts/kg), mean power output (9.8±1.7 Watts/kg), fatigue index (33.7±2.3%) and lactate 7 min after WAT (10.5±2.3 mmol/L) were determined. The incremental test identified LMI (207.8±17.7 Watts) and its respective blood lactate concentration (2.9±0.7 mmol/L), heart rate (153.6±10.6 bpm), and also maximal aerobic power (305.2±31.0 Watts). MLSS intensity was identified by 2 to 4 constant exercise tests (207.8±17.7 Watts), with no difference compared to LMI and good agreement between the two parameters. The LM test using a ramp protocol seems to be a valid method for the identification of LMI and estimation of MLSS intensity in regional cyclists. In addition, both anaerobic and aerobic fitness parameters were identified during a single session. |
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Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady stateLactato mínimo em protocolo de rampa e sua validade em estimar o máximo estado estável de lactatoThe objectives of this study were to evaluate the validity of the lactate minimum (LM) using a ramp protocol for the determination of LM intensity (LMI), and to estimate the exercise intensity corresponding to maximal blood lactate steady state (MLSS). In addition, the possibility of determining aerobic and anaerobic fitness was investigated. Fourteen male cyclists of regional level performed one LM protocol on a cycle ergometer (Excalibur–Lode) consisting of an incremental test at an initial workload of 75 Watts, with increments of 1 Watt every 6 seconds. Hyperlactatemia was induced by a 30-second Wingate anaerobic test (WAT) (Monark–834E) at a workload corresponding to 8.57% of the volunteer’s body weight. Peak power (11.5±2 Watts/kg), mean power output (9.8±1.7 Watts/kg), fatigue index (33.7±2.3%) and lactate 7 min after WAT (10.5±2.3 mmol/L) were determined. The incremental test identified LMI (207.8±17.7 Watts) and its respective blood lactate concentration (2.9±0.7 mmol/L), heart rate (153.6±10.6 bpm), and also maximal aerobic power (305.2±31.0 Watts). MLSS intensity was identified by 2 to 4 constant exercise tests (207.8±17.7 Watts), with no difference compared to LMI and good agreement between the two parameters. The LM test using a ramp protocol seems to be a valid method for the identification of LMI and estimation of MLSS intensity in regional cyclists. In addition, both anaerobic and aerobic fitness parameters were identified during a single session.Os objetivos foram verificar a validade do lactato mínimo (LM) modelo rampa em determinar a intensidade de LM (ILM), bem como estimar uma intensidade de exercício correspondente ao máximo estado estável de lactato (IMEEL). Ainda, a possibilidade de identificar parâmetros de aptidão aeróbia e anaeróbia em um único teste de LM em ciclistas recreacionais. Participaram do estudo 14 ciclistas de nível regional, do sexo masculino, submetidos ao protocolo de LM em cicloergômetro (Excalibur–Lode), composto por um teste incremental com carga inicial de 75 watts e incrementos de 1 Watt a cada 6 segundos. A indução prévia de hiperlactatemia foi realizada através do teste anaeróbio de Wingate (TAW) (Monark–834E), com carga de 8,57% da massa corporal. Foram obtidos a potência pico (11,5±2,0 Watts/kg), potência média (9,8±1,7 Watts/kg), índice de fadiga (33,7±7 %) e lactatemia 7min após o TAW (10,5±2,3 mmol.L-1). O teste incremental identificou a ILM (209,1±23,2 Watts), e respectivas concentração de lactato (2,9±0,7 mmol.L-1), frequência cardíaca (153,6±10,6 bpm), e também a potência máxima (305,2±31 Watts). A IMEEL foi determinada a partir de 2 a 4 séries de 30 min em intensidade constante (207,8±17,7 Watts), não diferindo da ILM, apresentando boa concordância entre si. O teste LM em protocolo de rampa parece valido em identificar a ILM e estimar a intensidade do MEEL de ciclistas regionais. Ainda, parâmetros de aptidão anaeróbia e aeróbia também foram identificados durante uma única sessão.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Avaliado por ParesDescritiva; Transversalapplication/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p17410.1590/1980-0037.2009v11n2p174Brazilian Journal of Kinanthropometry and Human Performance; Vol. 11 No. 2 (2009); 174-180Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 2 (2009); 174-1801980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174/9372https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174/16479Pardono, EmersonMadrid, BibianoMotta, Daisy FonsecaMota, Márcio RabeloCampbell, Carmen Silvia GrubertSimões, Herbert Gustavoinfo:eu-repo/semantics/openAccess2020-01-22T10:24:43Zoai:periodicos.ufsc.br:article/10102Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2020-01-22T10:24:43Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state Lactato mínimo em protocolo de rampa e sua validade em estimar o máximo estado estável de lactato |
title |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
spellingShingle |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state Pardono, Emerson |
title_short |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
title_full |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
title_fullStr |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
title_full_unstemmed |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
title_sort |
Lactate minimum in a ramp protocol and its validity to estimate the maximal lactate steady state |
author |
Pardono, Emerson |
author_facet |
Pardono, Emerson Madrid, Bibiano Motta, Daisy Fonseca Mota, Márcio Rabelo Campbell, Carmen Silvia Grubert Simões, Herbert Gustavo |
author_role |
author |
author2 |
Madrid, Bibiano Motta, Daisy Fonseca Mota, Márcio Rabelo Campbell, Carmen Silvia Grubert Simões, Herbert Gustavo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pardono, Emerson Madrid, Bibiano Motta, Daisy Fonseca Mota, Márcio Rabelo Campbell, Carmen Silvia Grubert Simões, Herbert Gustavo |
description |
The objectives of this study were to evaluate the validity of the lactate minimum (LM) using a ramp protocol for the determination of LM intensity (LMI), and to estimate the exercise intensity corresponding to maximal blood lactate steady state (MLSS). In addition, the possibility of determining aerobic and anaerobic fitness was investigated. Fourteen male cyclists of regional level performed one LM protocol on a cycle ergometer (Excalibur–Lode) consisting of an incremental test at an initial workload of 75 Watts, with increments of 1 Watt every 6 seconds. Hyperlactatemia was induced by a 30-second Wingate anaerobic test (WAT) (Monark–834E) at a workload corresponding to 8.57% of the volunteer’s body weight. Peak power (11.5±2 Watts/kg), mean power output (9.8±1.7 Watts/kg), fatigue index (33.7±2.3%) and lactate 7 min after WAT (10.5±2.3 mmol/L) were determined. The incremental test identified LMI (207.8±17.7 Watts) and its respective blood lactate concentration (2.9±0.7 mmol/L), heart rate (153.6±10.6 bpm), and also maximal aerobic power (305.2±31.0 Watts). MLSS intensity was identified by 2 to 4 constant exercise tests (207.8±17.7 Watts), with no difference compared to LMI and good agreement between the two parameters. The LM test using a ramp protocol seems to be a valid method for the identification of LMI and estimation of MLSS intensity in regional cyclists. In addition, both anaerobic and aerobic fitness parameters were identified during a single session. |
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 Descritiva; Transversal |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174 10.1590/1980-0037.2009v11n2p174 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174 |
identifier_str_mv |
10.1590/1980-0037.2009v11n2p174 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174/9372 https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n2p174/16479 |
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. 2 (2009); 174-180 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 2 (2009); 174-180 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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1789435121375379456 |