Blood lactate kinetic and maximal oxigen uptake between different positions on footballplayers
The aim of present study was to analyze the blood lactate kinetic and maximal oxigen uptake (VO2máx) in young footballplayers and compare these variables between each different tactical position. Methods: Were evaluated 18 young males distributed according the tactical position that each one occupie...
| Autores: | , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2012 |
| País: | Brasil |
| Recursos: | Instituto Brasileiro de Ensino e Pesquisa em Fisiologia do Exercício (IBPEFEX) |
| Repositório: | Revista Brasileira de Prescrição e Fisiologia do Exercício |
| Idioma: | português |
| OAI Identifier: | oai:ojs.www.rbpfex.com.br:article/363 |
| Acesso em linha: | https://www.rbpfex.com.br/index.php/rbpfex/article/view/363 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Soccer Maximum oxygen consumption (VO2max) Lactate Tactical positions Fútbol Consumo máximo de oxígeno (VO2max) Lactato Posiciones tácticas Calcio Massimo consumo di ossigeno (VO2max) Lattato Posizioni tattiche Futebol Consumo máximo de oxigênio (VO2máx) Posições táticas |
| Resumo: | The aim of present study was to analyze the blood lactate kinetic and maximal oxigen uptake (VO2máx) in young footballplayers and compare these variables between each different tactical position. Methods: Were evaluated 18 young males distributed according the tactical position that each one occupied in the footballplay. To the indirect determination of VO2máx, the shuttle-run 20m was realized. The Anaerobic Threshold was determined as been the velocity corresponding to the fixed concentration of 3,5 mmol/L. Blood lactate samples were collected at rest, at minutes 3,8 and 15 until the exhaustion on the test. Results: Goal-keepers presented the worst significant level of cardio respiratory when compared with forwards (p=0,001) and midfields (p=0,015). The fullback also presented values significant lower for this variable than forwards (p=0,03). These elevations on blood lactate concentrations observed between the velocities 9,0 to 10,0 km/h on shuttle run test were stale and allow us identify these stages as been the maximal lactate steady state. Conclusion: The footballfootball coaching does not seem to provide the specificity needed to meet the demand of effort required by each tactical position. The blood lactate kinetics seems to be a more sensitive variable to identify changes in the metabolic profile in relation to indirect estimation of VO2máx for each of the specific tactics on the footballfootball field. |
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