MAOD Determined in a Single Supramaximal Test: a Study on the Reliability and Effects of Supramaximal Intensities

作者：Zagatto A M^*; Bertuzzi R; Miyagi W E; Padulo J; Papoti M

来源：International Journal of Sports Medicine, 2016, 37(9): 700-707.

DOI：10.1055/s-0042-104413

• blood lactate concentration
• glycolytic metabolic pathway
• phosphagen metabolic pathway
• supramaximal efforts

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 (MAOD(ALT)) 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 MAOD(ALT) were determined in exhaustive efforts varying between 100-150 % at an intensity associated with maximal oxygen uptake (i(V) over dotO(2MAX)). 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 MAOD(ALT). Despite the MAOD being statistically correlated with the MAOD(ALT) 100 % i(V) over dotO(2MAX) (0.49 < r > 0.59), MAOD(ALT) determined at 115 % of i(V) over dotO(2MAX) (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(V) over dotO(2MAX) presented high test-retest reliability. MAOD(ALT) determined at 115 % of i(V) over dotO(2MAX) was a valid and reliable method to assess MAOD in running.

• 出版日期2016-8