MAOD Determined in a Single Supramaximal Test: A Study on the Reliability and Effects of Supramaximal Intensities
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The main barrier to the wide use of maximal accumulated oxygen deficit (MAOD) is the considerable time required to apply several sub- and supra-maximal exercise sessions. The main question of this study was whether the determination of MAOD using a single supramaximal exercise session (MAODALT) is valid and reliable in running. We investigated the effects of the supramaximal exercise intensity (A) and the reliability of a single supramaximal exercise session (B) to assess MAOD in treadmill running. For this aim 29 subjects participated in A & B studies with single allocation A (n=15) and B (n=14). The conventional MAOD and 8 MAODALT were determined in exhaustive efforts varying between 100-150% at an intensity associated with maximal oxygen uptake (i+VO2MAX). In B study 2 supramaximal efforts were applied to analyze the test-retest reliability. Non-significant differences were found between MAOD and the 8 values of MAODALT. Despite the MAOD being statistically correlated with the MAODALT 100% i+VO2MAX (0.49<r>0.59), MAODALT determined at 115% of i+VO2MAX (52.4±1.7 mL·kg-1) presented the higher correlation values (0.65<r>0.77) and concordance. In addition, the MAOD at 115% of i+VO2MAX presented high test-retest reliability. MAODALT determined at 115% of i+VO2MAX was a valid and reliable method to assess MAOD in running.
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blood lactate concentration, glycolytic metabolic pathway, phosphagen metabolic pathway, supramaximal efforts
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International Journal of Sports Medicine, v. 37, n. 9, p. 700-707, 2016.
