Reference values for maximum oxygen uptake relative to body mass in Dutch/Flemish subjects aged 6-65 years: the LowLands Fitness Registry

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Abstract

Background: The maximum oxygen uptake (VO 2max) during cardiopulmonary exercise testing (CPET) is considered the best measure of cardiorespiratory fitness. Aim: To provide up-to-date reference values for the VO 2max per kilogram of body mass (VO 2max/kg) obtained by CPET in the Netherlands and Flanders. Methods: The Lowlands Fitness Registry contains data from health checks among different professions and was used for this study. Data from 4612 apparently healthy subjects, 3671 males and 941 females, who performed maximum effort during cycle ergometry were analysed. Reference values for the VO 2max/kg and corresponding centile curves were created according to the LMS method. Results: Age had a negative significant effect (p <.001) and males had higher values of VO 2max/kg with an overall difference of 18.0% compared to females. Formulas for reference values were developed:Males: VO 2max/kg = − 0.0049 × age 2 + 0.0884 × age + 48.263 (R 2 = 0.9859; SEE = 1.4364)Females: VO 2max/kg = − 0.0021 × age 2 − 0.1407 × age + 43.066 (R 2 = 0.9989; SEE = 0.5775). Cross-validation showed no relevant statistical mean difference between measured and predicted values for males and a small but significant mean difference for females. We found remarkable higher VO 2max/kg values compared to previously published studies. Conclusions: This is the first study to provide reference values for the VO 2max/kg based on a Dutch/Flemish cohort. Our reference values can be used for a more accurate interpretation of the VO 2max in the West-European population.

Original languageEnglish
Pages (from-to)1189-1196
Number of pages8
JournalEuropean Journal of Applied Physiology
Volume121
Issue number4
Early online date1 Feb 2021
DOIs
Publication statusPublished - Apr 2021

Keywords

  • Cardiorespiratory fitness
  • Ergometry
  • Exercise test
  • Oxygen consumption
  • Reference values

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