Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices
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/1980-0037.2009v11n1p94 |
Resumo: | The objective of this study was to present relevant updated information regarding the physiological determinants of aerobic training and performance. In contrast to common concepts, the aerobic metabolism rapidly responds to energy requirements, with the anaerobic and aerobic energy systems equally contributing to total energy production during maximal exercise lasting about 75 s. However, in the case of longer exercise duration the possible mechanisms of fatigue related to anaerobic metabolism are still the main determinants of exercise tolerance. Prolonged exercise (more than one hour) can be limited by several factors such as substrate depletion, water and electrolyte disturbance, or problems related to thermoregulation leading to an increase in body temperature. The most important variables of endurance performance have been organized into a model that integrates factors such as maximum oxygen uptake (VO2max), blood lactate thresholds, and muscle efficiency. For highly trained athletes, in addition to a high VO2max, success in endurance events also requires the ability to exercise for prolonged periods at a high percentage of VO2max, as well as to efficiently convert the energy produced into muscle work. Depending on the duration of the aerobic event, the training sessions should be aimed at improving VO2max, anaerobic lactate capacity and acidosis tolerance in the case of short-lasting events and aerobic capacity for events of intermediate duration, and at increasing muscle glycogen content and fat utilization in the case of long-lasting events. |
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Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indicesExercício aeróbio: Aspectos bioenergéticos, ajustes fisiológicos, fadiga e índices de desempenhoThe objective of this study was to present relevant updated information regarding the physiological determinants of aerobic training and performance. In contrast to common concepts, the aerobic metabolism rapidly responds to energy requirements, with the anaerobic and aerobic energy systems equally contributing to total energy production during maximal exercise lasting about 75 s. However, in the case of longer exercise duration the possible mechanisms of fatigue related to anaerobic metabolism are still the main determinants of exercise tolerance. Prolonged exercise (more than one hour) can be limited by several factors such as substrate depletion, water and electrolyte disturbance, or problems related to thermoregulation leading to an increase in body temperature. The most important variables of endurance performance have been organized into a model that integrates factors such as maximum oxygen uptake (VO2max), blood lactate thresholds, and muscle efficiency. For highly trained athletes, in addition to a high VO2max, success in endurance events also requires the ability to exercise for prolonged periods at a high percentage of VO2max, as well as to efficiently convert the energy produced into muscle work. Depending on the duration of the aerobic event, the training sessions should be aimed at improving VO2max, anaerobic lactate capacity and acidosis tolerance in the case of short-lasting events and aerobic capacity for events of intermediate duration, and at increasing muscle glycogen content and fat utilization in the case of long-lasting events.O objetivo deste trabalho foi trazer informações atuais e relevantes a respeito dos aspectos fisiológicos determinantes do rendimento e treinamento dos esportes aeróbios. Diferente do que se tem sido comumente apresentado, o metabolismo aeróbio responde rapidamente a demanda energética, com um exercício máximo de 75 s, apresentando iguais contribuições do sistema aeróbio e anaeróbio para a produção total de energia. No entanto, em exercícios acima dessa duração, os possíveis mecanismos da fadiga relacionados ao metabolismo anaeróbio ainda são os principais determinantes da tolerância ao exercício. Em durações mais prolongadas (acima de 60 min), a depleção de glicogênio, o desequilíbrio hídrico e eletrolítico, elevação da temperatura corporal terão um papel decisivo no rendimento. As mais importantes variáveis do desempenho aeróbio têm sido organizadas em um modelo que integra fatores como o consumo máximo de oxigênio (VO2max), limiares relacionados à resposta do lactato ao exercício e a eficiência muscular. Para atletas de elite, observa-se que em adição a um elevado valor de VO2max, o sucesso em eventos aeróbios também requer uma capacidade de se exercitar por um tempo prolongado a uma alta porcentagem do VO2max, bem como, uma eficiente conversão da energia produzida para a forma de trabalho muscular. Dependendo da duração da modalidade que se compete, os treinos deverão objetivar uma melhora da IVO2max, capacidade anaeróbia lática e tolerância à acidose, para as competições mais curtas, capacidade aeróbia para durações intermediárias e a melhora da capacidade de estocar glicogênio e aumentar a utilização de gordura, nas modalidades muito prolongadas.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares","Artigo Solicitado""Avaliado por Pares", "Artigo Solicitado"Revisão de literaturaapplication/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p9410.1590/1980-0037.2009v11n1p94Brazilian Journal of Kinanthropometry and Human Performance; Vol. 11 No. 1 (2009); 94-102Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 1 (2009); 94-1021980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94/7915https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94/16469Caputo, Fabriziode Oliveira, Mariana Fernandes MendesGreco, Camila CoelhoDenadai, Benedito Sérgioinfo:eu-repo/semantics/openAccess2020-01-22T10:12:26Zoai:periodicos.ufsc.br:article/8583Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2020-01-22T10:12:26Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices Exercício aeróbio: Aspectos bioenergéticos, ajustes fisiológicos, fadiga e índices de desempenho |
title |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
spellingShingle |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices Caputo, Fabrizio |
title_short |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
title_full |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
title_fullStr |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
title_full_unstemmed |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
title_sort |
Aerobic exercise: bioenergetics, physiologicaladjustments, fatigue and performance indices |
author |
Caputo, Fabrizio |
author_facet |
Caputo, Fabrizio de Oliveira, Mariana Fernandes Mendes Greco, Camila Coelho Denadai, Benedito Sérgio |
author_role |
author |
author2 |
de Oliveira, Mariana Fernandes Mendes Greco, Camila Coelho Denadai, Benedito Sérgio |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Caputo, Fabrizio de Oliveira, Mariana Fernandes Mendes Greco, Camila Coelho Denadai, Benedito Sérgio |
description |
The objective of this study was to present relevant updated information regarding the physiological determinants of aerobic training and performance. In contrast to common concepts, the aerobic metabolism rapidly responds to energy requirements, with the anaerobic and aerobic energy systems equally contributing to total energy production during maximal exercise lasting about 75 s. However, in the case of longer exercise duration the possible mechanisms of fatigue related to anaerobic metabolism are still the main determinants of exercise tolerance. Prolonged exercise (more than one hour) can be limited by several factors such as substrate depletion, water and electrolyte disturbance, or problems related to thermoregulation leading to an increase in body temperature. The most important variables of endurance performance have been organized into a model that integrates factors such as maximum oxygen uptake (VO2max), blood lactate thresholds, and muscle efficiency. For highly trained athletes, in addition to a high VO2max, success in endurance events also requires the ability to exercise for prolonged periods at a high percentage of VO2max, as well as to efficiently convert the energy produced into muscle work. Depending on the duration of the aerobic event, the training sessions should be aimed at improving VO2max, anaerobic lactate capacity and acidosis tolerance in the case of short-lasting events and aerobic capacity for events of intermediate duration, and at increasing muscle glycogen content and fat utilization in the case of long-lasting events. |
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","Artigo Solicitado" "Avaliado por Pares", "Artigo Solicitado" Revisão de literatura |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94 10.1590/1980-0037.2009v11n1p94 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94 |
identifier_str_mv |
10.1590/1980-0037.2009v11n1p94 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94/7915 https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n1p94/16469 |
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. 1 (2009); 94-102 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 1 (2009); 94-102 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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1789435121314562048 |