Vo2fitting: A free and open-source software for modelling oxygen uptake kinetics in swimming and other exercise modalities

Rodrigo Zacca, Rui Azevedo, Pedro Figueiredo, João Paulo Vilas-Boas, Flávio A.de S. Castro, David B. Pyne, Ricardo J. Fernandes

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The assessment of oxygen uptake (VO2) kinetics is a valuable non-invasive way to evaluate cardiorespiratory and metabolic response to exercise. The aim of the study was to develop, describe and evaluate an online VO2 fitting tool (VO2FITTING) for dynamically editing, processing, filtering and modelling VO2 responses to exercise. VO2FITTING was developed in Shiny, a web application framework for R language. Validation VO2 datasets with both noisy and non-noisy data were developed and applied to widely-used models (n = 7) for describing different intensity transitions to verify concurrent validity. Subsequently, we then conducted an experiment with age-group swimmers as an example, illustrating how VO2FITTING can be used to model VO2 kinetics. Perfect fits were observed, and parameter estimates perfectly matched the known inputted values for all available models (standard error = 0; p < 0.001). The VO2FITTING is a valid, free and open-source software for characterizing VO2 kinetics in exercise, which was developed to help the research and performance analysis communities.

Original languageEnglish
Article number31
JournalSports
Volume7
Issue number2
DOIs
Publication statusPublished - Feb 2019
Externally publishedYes

Keywords

  • Exercise
  • Free
  • Modelling
  • Open-source
  • Oxygen uptake kinetics
  • Software

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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