Calculation and validation of models for estimating VO 2max from the 20-m shuttle run test in children and adolescents

Objective: null null The purposes of this study were to calculate and validate two models to estimate maximal oxygen uptake (VO 2 max) in Portuguese youths, aged 10-18 years, using a 20-meter shuttle run test (SR). null null Design: null null Subjects (54 girls and 60 boys) were divided into estimation ( n = 91) and cross-validation ( n =23) groups, and their VO 2 max was directly measured by wearing a portable gas analyzer during the SR. The...