Revista Brasileira de Cineantropometria e Desempenho Humano (Jul 2013)

<b> Determination of lactic and alactic metabolisms of the anaerobic capacity using oxygen uptake</b>

  • Rodrigo Poles Urso,
  • Marcos David da Silva-Cavalcante,
  • Carlos Rafaell Correia-Oliveira,
  • Salomão Bueno,
  • Mayara Vieira Damasceno,
  • Adriano Eduardo Lima-Silva,
  • Rômulo Bertuzzi

DOI
Journal volume & issue
Vol. 15, no. 5
pp. 616 – 627

Abstract

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It has been suggested that the participation of alactic anaerobic metabolism(AAM) in physical activity can be estimated by calculating the fast componentof excess post-exercise oxygen consumption (EPOCFAST). Considering that maximalaccumulated oxygen deficit (MAOD) represents the total amount of energytransferred by anaerobic metabolisms, this study aimed to analyze whethersubtracting EPOCFAST from MAOD (MAODLA-1) provides a satisfactory estimate oflactic anaerobic metabolism (LAM). For this purpose, MAODLA-1 was compared withthe method by which the energy derived from blood lactate accumulation (MAODLA-2)is expressed as oxygen equivalent. Nine active adult men were submitted to fourexperimental sessions: 1) a maximal incremental exercise test until exhaustionon a cycle ergometer to measure the maximal oxygen consumption (VO2max) and theexternal power corresponding to VO2max (WVO2max); 2) and 3) sixconstant-workload tests (3 per session) at intensities below WVO2max; 4) oneconstant-workload test at an intensity corresponding to 110% of W O2max. Themain finding was that both methods (MAODLA-1 e MAODLA-2) that were used toestimate the contribution of LAM in MAOD resulted in similar statistical values(p > 0.05). In addition, percentage values of MAODLA-1 (representing MAL) and EPOCFAST (representing AAM) were approximately 78 and 22%, respectively. Thus,the procedure proposed in this paper may be of interest to future studies onthe contribution of anaerobic components to MAOD.

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