Determining the contribution of the energy systems during exercise (2012)
- Autores:
- Autores USP: BERTUZZI, RÔMULO CÁSSIO DE MORAES - EEFE ; SILVA, HAMILTON AUGUSTO ROSCHEL DA - EEFE ; LANCHA JUNIOR, ANTONIO HERBERT - EEFE ; FRANCHINI, EMERSON - EEFE
- Unidade: EEFE
- DOI: 10.3791/3413
- Assuntos: FISIOLOGIA; METABOLISMO; EXERCÍCIO FÍSICO
- Idioma: Inglês
- Resumo: One of the most important aspects of the metabolic demand is the relative contribution of the energy systems to the total energy required for a given physical activity. Although some sports are relatively easy to be reproduced in a laboratory (e.g., running and cycling), a number of sports are much more difficult to be reproduced and studied in controlled situations. This method presents how to assess the differential contribution of the energy systems in sports that are difficult to mimic in controlled laboratory conditions. The concepts shown here can be adapted to virtually any sport. The following physiologic variables will be needed: rest oxygen consumption, exercise oxygen consumption, post-exercise oxygen consumption, rest plasma lactate concentration and post-exercise plasma peak lactate. To calculate the contribution of the aerobic metabolism, you will need the oxygen consumption at rest and during the exercise. By using the trapezoidal method, calculate the area under the curve of oxygen consumption during exercise, subtracting the area corresponding to the rest oxygen consumption. To calculate the contribution of the alactic anaerobic metabolism, the post-exercise oxygen consumption curve has to be adjusted to a mono or a bi-exponential model (chosen by the one that best fits). Then, use the terms of the fitted equation to calculate anaerobic alactic metabolism, as follows: ATP-CP metabolism = A1 (mL . s-1) x t1 (s). Finally, to calculate the contribution of the lactic anaerobic system, multiply peak plasma lactate by 3 and by the athlete’s body mass (the result in mL is then converted to L and into kJ). The method can be used for both continuous and intermittent exercise. This is a very interesting approach as it can be adapted to exercises and sports that are difficult to be mimicked in controlled environments. (Continue)(Continuation) Also, this is the only available method capable of distinguishing the contribution of three different energy systems. Thus, the method allows the study of sports with great similarity to real situations, providing desirable ecological validity to the study
- Imprenta:
- Fonte:
- Título do periódico: The Journal of Visualized Experiments
- ISSN: 1940-087X
- Volume/Número/Paginação/Ano: v. 61, mar. 2012
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: bronze
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ABNT
ARTIOLI, G. G et al. Determining the contribution of the energy systems during exercise. The Journal of Visualized Experiments, v. 61, 2012Tradução . . Disponível em: https://doi.org/10.3791/3413. Acesso em: 24 abr. 2024. -
APA
Artioli, G. G., Bertuzzi, R. C. de M., Roschel, H., Mendes, S. H., Lancha Junior, A. H., & Franchini, E. (2012). Determining the contribution of the energy systems during exercise. The Journal of Visualized Experiments, 61. doi:10.3791/3413 -
NLM
Artioli GG, Bertuzzi RC de M, Roschel H, Mendes SH, Lancha Junior AH, Franchini E. Determining the contribution of the energy systems during exercise [Internet]. The Journal of Visualized Experiments. 2012 ; 61[citado 2024 abr. 24 ] Available from: https://doi.org/10.3791/3413 -
Vancouver
Artioli GG, Bertuzzi RC de M, Roschel H, Mendes SH, Lancha Junior AH, Franchini E. Determining the contribution of the energy systems during exercise [Internet]. The Journal of Visualized Experiments. 2012 ; 61[citado 2024 abr. 24 ] Available from: https://doi.org/10.3791/3413 - Genética e potência aeróbia: o consumo máximo de oxigênio está relacionado ao polimorfismo R577X do gene ACTN3 em humanos
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Informações sobre o DOI: 10.3791/3413 (Fonte: oaDOI API)
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