Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/224923 |
Resumo: | The maximal lactate steady state (MLSS) is considered the gold standard method for determination of aerobic/anaerobic metabolic transition during continuous exercise, but the blood lactate response at this intensity is ergometer-dependent in human beings. An important tool for exercise physiology and correlated fields is the use of animal models. However, investigation on evaluation protocols in rats is scarce. The aim of the present study was to verify if the MLSS is ergometer-dependent for the evaluation of the aerobic conditioning of rats. Therefore, 40 adult male Wistar rats were evaluated in two different exercise types: swimming and treadmill running. In both, the MLSS was obtained with 4 continuous 25 minutes tests, at different intensities, performed at 48 hours intervals. In all tests, blood samples were collected from a cut at the tail tip every 5 minutes for blood lactate analysis. The swimming tests occurred in a deep cylindrical tank, with water temperature at 31 ± 1°C. The loads used in the tests were 4.5; 5.0; 5.5 and 6.0% of the body weight tied to the animal's back. For MLSS determination in running exercise, there was selection of running rats and velocities used in the tests were 15, 20, 25, 30 m.min-1. The MLSS was interpreted as an increase not exceeding 1.0 mM of blood lactate, from the 10th to the 25 th minute of exercise. The MLSS in swimming exercise occurred at 5.0% of body weight (bw), with blood lactate at 5.20 ± 0.22 mM. The running rats presented MLSS at the 20 m.min-1 velocity, with blood lactate of 3.87 ± 0.33 mM. The results indicated that the MLSS is ergometer-dependent in experimental models using animals, as it is in human beings. |
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Repositório Institucional da UNESP |
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Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratosThe maximal lactate steady state is ergometer-dependent in experimental model using ratsBlood lactateSwimmingTreadmill runningWistar ratsThe maximal lactate steady state (MLSS) is considered the gold standard method for determination of aerobic/anaerobic metabolic transition during continuous exercise, but the blood lactate response at this intensity is ergometer-dependent in human beings. An important tool for exercise physiology and correlated fields is the use of animal models. However, investigation on evaluation protocols in rats is scarce. The aim of the present study was to verify if the MLSS is ergometer-dependent for the evaluation of the aerobic conditioning of rats. Therefore, 40 adult male Wistar rats were evaluated in two different exercise types: swimming and treadmill running. In both, the MLSS was obtained with 4 continuous 25 minutes tests, at different intensities, performed at 48 hours intervals. In all tests, blood samples were collected from a cut at the tail tip every 5 minutes for blood lactate analysis. The swimming tests occurred in a deep cylindrical tank, with water temperature at 31 ± 1°C. The loads used in the tests were 4.5; 5.0; 5.5 and 6.0% of the body weight tied to the animal's back. For MLSS determination in running exercise, there was selection of running rats and velocities used in the tests were 15, 20, 25, 30 m.min-1. The MLSS was interpreted as an increase not exceeding 1.0 mM of blood lactate, from the 10th to the 25 th minute of exercise. The MLSS in swimming exercise occurred at 5.0% of body weight (bw), with blood lactate at 5.20 ± 0.22 mM. The running rats presented MLSS at the 20 m.min-1 velocity, with blood lactate of 3.87 ± 0.33 mM. The results indicated that the MLSS is ergometer-dependent in experimental models using animals, as it is in human beings.Universidade Estadual Paulista - UNESP Departamento de Educação Física, Rio Claro/SPFaculdades Integradas Einstein de Limeira - FIEL, Limeira/SPFaculdades Integradas de Bauru - FIB, Bauru/SPUniversidade Estadual Paulista - UNESP Departamento de Educação Física, Rio Claro/SPUniversidade Estadual Paulista (UNESP)Faculdades Integradas Einstein de Limeira - FIELFaculdades Integradas de Bauru - FIBManchado, Fúlvia De Barros [UNESP]Gobatto, Claudio Alexandre [UNESP]Contarteze, Ricardo Vinícius Ledesma [UNESP]Papoti, Marcelo [UNESP]De Mello, Maria Alice Rostom [UNESP]2022-04-28T20:17:23Z2022-04-28T20:17:23Z2006-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Medicina do Esporte, v. 12, n. 5, 2006.1517-8692http://hdl.handle.net/11449/2249232-s2.0-34347236452Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporengRevista Brasileira de Medicina do Esporteinfo:eu-repo/semantics/openAccess2022-04-28T20:17:23Zoai:repositorio.unesp.br:11449/224923Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:07:49.530441Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos The maximal lactate steady state is ergometer-dependent in experimental model using rats |
title |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
spellingShingle |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos Manchado, Fúlvia De Barros [UNESP] Blood lactate Swimming Treadmill running Wistar rats |
title_short |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
title_full |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
title_fullStr |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
title_full_unstemmed |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
title_sort |
Máxima fase estável de lactato é ergômetro- dependente em modelo experimental utilizando ratos |
author |
Manchado, Fúlvia De Barros [UNESP] |
author_facet |
Manchado, Fúlvia De Barros [UNESP] Gobatto, Claudio Alexandre [UNESP] Contarteze, Ricardo Vinícius Ledesma [UNESP] Papoti, Marcelo [UNESP] De Mello, Maria Alice Rostom [UNESP] |
author_role |
author |
author2 |
Gobatto, Claudio Alexandre [UNESP] Contarteze, Ricardo Vinícius Ledesma [UNESP] Papoti, Marcelo [UNESP] De Mello, Maria Alice Rostom [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Faculdades Integradas Einstein de Limeira - FIEL Faculdades Integradas de Bauru - FIB |
dc.contributor.author.fl_str_mv |
Manchado, Fúlvia De Barros [UNESP] Gobatto, Claudio Alexandre [UNESP] Contarteze, Ricardo Vinícius Ledesma [UNESP] Papoti, Marcelo [UNESP] De Mello, Maria Alice Rostom [UNESP] |
dc.subject.por.fl_str_mv |
Blood lactate Swimming Treadmill running Wistar rats |
topic |
Blood lactate Swimming Treadmill running Wistar rats |
description |
The maximal lactate steady state (MLSS) is considered the gold standard method for determination of aerobic/anaerobic metabolic transition during continuous exercise, but the blood lactate response at this intensity is ergometer-dependent in human beings. An important tool for exercise physiology and correlated fields is the use of animal models. However, investigation on evaluation protocols in rats is scarce. The aim of the present study was to verify if the MLSS is ergometer-dependent for the evaluation of the aerobic conditioning of rats. Therefore, 40 adult male Wistar rats were evaluated in two different exercise types: swimming and treadmill running. In both, the MLSS was obtained with 4 continuous 25 minutes tests, at different intensities, performed at 48 hours intervals. In all tests, blood samples were collected from a cut at the tail tip every 5 minutes for blood lactate analysis. The swimming tests occurred in a deep cylindrical tank, with water temperature at 31 ± 1°C. The loads used in the tests were 4.5; 5.0; 5.5 and 6.0% of the body weight tied to the animal's back. For MLSS determination in running exercise, there was selection of running rats and velocities used in the tests were 15, 20, 25, 30 m.min-1. The MLSS was interpreted as an increase not exceeding 1.0 mM of blood lactate, from the 10th to the 25 th minute of exercise. The MLSS in swimming exercise occurred at 5.0% of body weight (bw), with blood lactate at 5.20 ± 0.22 mM. The running rats presented MLSS at the 20 m.min-1 velocity, with blood lactate of 3.87 ± 0.33 mM. The results indicated that the MLSS is ergometer-dependent in experimental models using animals, as it is in human beings. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-09-01 2022-04-28T20:17:23Z 2022-04-28T20:17:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Medicina do Esporte, v. 12, n. 5, 2006. 1517-8692 http://hdl.handle.net/11449/224923 2-s2.0-34347236452 |
identifier_str_mv |
Revista Brasileira de Medicina do Esporte, v. 12, n. 5, 2006. 1517-8692 2-s2.0-34347236452 |
url |
http://hdl.handle.net/11449/224923 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Medicina do Esporte |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128759134420992 |