Reference values of aerobic fitness in the contemporary paediatric population - Neuropsychiatrie- Recherche épidémiologique et clinique (U1061) Access content directly
Journal Articles European Journal of Preventive Cardiology Year : 2023

Reference values of aerobic fitness in the contemporary paediatric population

Jonathan Rhodes
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Alfred Hager

Abstract

Aims There has been a growing interest in the use of markers of aerobic physical fitness (VO2max assessed by cardiopulmonary exercise testing (CPET)) in the follow-up of paediatric chronic diseases. The dissemination of CPET in paediatrics requires valid paediatric VO2max reference values to define the upper and lower normal limits. This study aimed to establish VO2max reference Z-scores values, from a large cohort of children representative of the contemporary paediatric population, including those with extreme weights. Methods and results In this cross-sectional study, 909 children aged 5 to 18-years-old from the general French population (development cohort), and 232 children from the general German and US populations (validation cohort) underwent a CPET, following the guidelines on high-quality CPET assessment. Linear, quadratic, and polynomial mathematical regression equations were applied to identify the best VO2max Z-score model. Predicted and observed VO2max values using the VO2maxZ-score model, and the existing linear equations were compared, in both development and validation cohorts. For both sexes, the mathematical model using natural logarithms of VO2max, height, and BMI was the best fit for the data. This Z-score model could be applied to normal and extreme weights and was more reliable than the existing linear equations, in both internal and external validity analyses (https://play.google.com/store/apps/details?id=com.d2l.zscore). Conclusion This study established reference Z-score values for paediatric cycloergometer VO2max using a logarithmic function of VO2max, height and BMI, applicable to normal and extreme weights. Providing Z-scores to assess aerobic fitness in the paediatric population should be useful in the follow-up of children with chronic diseases.
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Dates and versions

hal-04001709 , version 1 (01-02-2024)

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Arthur Gavotto, Thibault Mura, Jonathan Rhodes, Suellen Moli Yin, Alfred Hager, et al.. Reference values of aerobic fitness in the contemporary paediatric population. European Journal of Preventive Cardiology, 2023, 30 (9), pp.820-829. ⟨10.1093/eurjpc/zwad054⟩. ⟨hal-04001709⟩
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