Accuracy of a non-exercise method using seismocardiography for the estimation of VÌO2peak in sub-elite football players.
Eur J Sport Sci
; 24(7): 889-898, 2024 Jul.
Article
em En
| MEDLINE
| ID: mdl-38956783
ABSTRACT
A non-exercise method equation using seismocardiography for estimating VÌO2peak (SCG VÌO2peak) has previously been validated in healthy subjects. However, the performance of the SCG VÌO2peak within a trained population is unknown, and the ability of the model to detect changes over time is not well elucidated. Forty-seven sub-elite football players were tested at the start of pre-season (SPS) and 36 players completed a test after eight weeks at the end of the pre-season (EPS). Testing included an SCG VÌO2peak estimation at rest and a graded cardiopulmonary exercise test (CPET) on a treadmill for determination of VÌO2peak. Agreement between SCG VÌO2peak and CPET VÌO2peak showed a large underestimation at SPS (bias ± 95% CI -9.9 ± 1.8, 95% Limits of Agreement 2.2 to -22.0 mL·min-1 kg-1). At EPS no interaction (p = 0.3590) but a main effect of time (p < 0.0001) and methods (p < 0.0001) was observed between SCG and CPET VÌO2peak. No correlation in VÌO2peak changes was observed between SCG and CPET (r = -20.0, p = 0.2484) but a fair agreement in classifying the correct directional change in VÌO2peak with the SCG method was found (Cohen's κ coefficient = 0.28 ± 0.25). Overall, the SCG VÌO2peak method lacks accuracy and despite being able to estimate group changes, it was incapable of detecting individual changes in VÌO2peak following a pre-season period in sub-elite football players. The SCG algorithm needs to be further adjusted and the accuracy and precision improved for the method to be applicable for use within a trained population.
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MEDLINE
Assunto principal:
Consumo de Oxigênio
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Futebol
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Teste de Esforço
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article