Pode o consumo máximo de oxigênio e a frequência cardíaca máxima medidos em teste laboratorial serem preditos por equações em corredores amadores?

ABSTRACT Can the maximal oxygen uptake and maximum heart rate measured in laboratory test be predicted by equations in amateur runners?The maximum oxygen consumption (VO2max) and maximum heart rate (HRmax) are used constantly to describe the ability of the cardiovascular system and to estimate the load exercise tolerance. However there is no consensus in the literature regarding the reliable formula to determine them. The aim of the study was to determine whether the VO2max and HRmax can be predicted by formulas in young runners. Thirteen men (25.62 ± 8.87 years) performed an incremental test to exhaustion with analysis of VO2max and HRmax. These variables were compared between prediction formulas of VO2max (A = 15 x (HRmax / resting heart rate; B = 3.542 + (-0.014 x age) + (0.015 x body weight) + (-0.011 x resting heart rate); C = (0.2 x Vpeak-P) + (0.9 x Vpeak-P x slope) + 3.5; D = (0.2 x Vpeak-60) + (0.9 x Vpeak-60 x slope) + 3.5)) and HRmax (1 = 220 - age; 2 = 207 - 0.7 x age; 3 = 201 - 0.6 x age; 4 = 205-0685 x age; 5 = 210 - 0.65 x age). ANOVA was used adopting a significance level of 5%. The results showed for formulas A and B VO2max not differs from the actual found (p> 0.05) and the formula 3, differently from the actual HRmax (p 0.05) e para a fórmula 3, diferente da FCmáx real (p < 0.05). Assim, foi possível concluir que as fórmulas A e B e 1, 2, 4 e 5 podem ser utilizadas para predizer o VO2máx e a FCmáx em jovens corredores.