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

doi:10.3390/sports7020031

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 journal › Article › peer-review

21 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 language	English
Article number	31
Journal	Sports
Volume	7
Issue number	2
DOIs	https://doi.org/10.3390/sports7020031
Publication status	Published - Feb 2019
Externally published	Yes

Keywords

Exercise
Free
Modelling
Open-source
Oxygen uptake kinetics
Software

ASJC Scopus subject areas

Orthopedics and Sports Medicine
Physical Therapy, Sports Therapy and Rehabilitation

Access to Document

10.3390/sports7020031

Cite this

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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.",

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AU - Castro, Flávio A.de S.

AU - Pyne, David B.

AU - Fernandes, Ricardo J.

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