VO_2MAX ESTIMATED BY PREDICTIVE EQUATIONS PRESENTS LOW CONCORDANCE WITH THAT OBTAINED BY CARDIOPULMONARY TEST - GOLD STANDARD

ABSTRACT

The aim was to evaluate the concordance between measurements of VO_2max obtained by exercise cardiopulmonary test (gold-standard) vs. that obtained by predictive equations. Men (21-55 years-old) were grouped into Resistance training (RT; n=31), long-distance runners (R; n=28) and non-exercise practitioners (C; n=35). Five equations were tested, one of them made from Brazilian sample. The concordance was evaluated by Bland-Altman, and correlation analysis by Pearson's coefficient (r). The r between gold-standard vs. equations ranged 0.27 to 0.75, with p<0.05 for the most analysis, however, with low concordance. Regarding the equation obtained in Brazilians, the values with lower concordance were, following the order: C, RT and R. In relation to others equations, again with lower concordance, the order was R, RT and C. The worst estimates were to higher VO_2max values, mainly for >40 mL.kg^-1.min^-1. In conclusion, the predictive equations tested generate low concordance when compared to VO_2maxgold-standard test, mainly for VO_2max>40 mL.kg^-1.min^-1.

Keywords
Maximal Oxygen Consumption; Resistance Training; Running