Predicting Maximal Aerobic Capacity ([latin capital V with dot above]O2max) from the Critical Velocity Test in Female Collegiate Rowers

• Autores: Kristina L. Kendall, David H. Fukuda, Abbie E. Smith, Joel T. Cramer, Jeffrey R. Stout
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 26, Nº. 3, 2012, págs. 733-738
• Idioma: inglés
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• Resumen

  • The objective of this study was to examine the relationship between the critical velocity (CV) test and maximal oxygen consumption ([latin capital V with dot above]O2max) and develop a regression equation to predict [latin capital V with dot above]O2max based on the CV test in female collegiate rowers. Thirty-five female (mean ± SD; age, 19.38 ± 1.3 years; height, 170.27 ± 6.07 cm; body mass, 69.58 ± 0.3 1 kg) collegiate rowers performed 2 incremental [latin capital V with dot above]O2max tests to volitional exhaustion on a Concept II Model D rowing ergometer to determine [latin capital V with dot above]O2max. After a 72-hour rest period, each rower completed 4 time trials at varying distances for the determination of CV and anaerobic rowing capacity (ARC). A positive correlation was observed between CV and absolute [latin capital V with dot above]O2max (r = 0.775, p < 0.001) and ARC and absolute [latin capital V with dot above]O2max (r = 0.414, p = 0.040). Based on the significant correlation analysis, a linear regression equation was developed to predict the absolute [latin capital V with dot above]O2max from CV and ARC (absolute [latin capital V with dot above]O2max = 1.579[CV] + 0.008[ARC] - 3.838; standard error of the estimate [SEE] = 0.192 L·min-1). Cross validation analyses were performed using an independent sample of 10 rowers. There was no significant difference between the mean predicted [latin capital V with dot above]O2max (3.02 L·min-1) and the observed [latin capital V with dot above]O2max (3.10 L·min-1). The constant error, SEE and validity coefficient (r) were 0.076 L·min-1, 0.144 L·min-1, and 0.72, respectively. The total error value was 0.155 L·min-1. The positive relationship between CV, ARC, and [latin capital V with dot above]O2max suggests that the CV test may be a practical alternative to measuring the maximal oxygen uptake in the absence of a metabolic cart. Additional studies are needed to validate the regression equation using a larger sample size and different populations (junior- and senior-level female rowers) and to determine the accuracy of the equation in tracking changes after a training intervention.