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 journalArticle

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.

LanguageEnglish
Pages1-15
Number of pages15
JournalSports
Volume7
Issue number2
DOIs
Publication statusPublished - 24 Jan 2019

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Zacca, R., Azevedo, R., Figueiredo, P., Vilas-Boas, J. P., Castro, F. A. D. S., Pyne, D. B., & Fernandes, R. J. (2019). VO₂FITTING: A Free and Open-Source Software for Modelling Oxygen Uptake Kinetics in Swimming and other Exercise Modalities. Sports, 7(2), 1-15. https://doi.org/10.3390/sports7020031
Zacca, Rodrigo ; Azevedo, Rui ; Figueiredo, Pedro ; Vilas-Boas, João Paulo ; Castro, Flávio A de S ; Pyne, David B ; Fernandes, Ricardo J. / VO₂FITTING : A Free and Open-Source Software for Modelling Oxygen Uptake Kinetics in Swimming and other Exercise Modalities. In: Sports. 2019 ; Vol. 7, No. 2. pp. 1-15.
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Zacca, R, Azevedo, R, Figueiredo, P, Vilas-Boas, JP, Castro, FADS, Pyne, DB & Fernandes, RJ 2019, 'VO₂FITTING: A Free and Open-Source Software for Modelling Oxygen Uptake Kinetics in Swimming and other Exercise Modalities', Sports, vol. 7, no. 2, pp. 1-15. https://doi.org/10.3390/sports7020031

VO₂FITTING : A Free and Open-Source Software for Modelling Oxygen Uptake Kinetics in Swimming and other Exercise Modalities. / Zacca, Rodrigo; Azevedo, Rui; Figueiredo, Pedro; Vilas-Boas, João Paulo; Castro, Flávio A de S; Pyne, David B; Fernandes, Ricardo J.

In: Sports, Vol. 7, No. 2, 24.01.2019, p. 1-15.

Research output: Contribution to journalArticle

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AU - Zacca, Rodrigo

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AU - Figueiredo, Pedro

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AU - Fernandes, Ricardo J

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AB - 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.

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