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. 2022 Aug 25;13:897412. doi: 10.3389/fphys.2022.897412

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Copyright © 2022 Wang, Zhang, Lan, Yang, Gao, Wu, Xin and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The linear correlation plot and consistency plot of $V O_{2, e s t i}$ and $V O_{2, t r u e}$ . (A) The scatter plot of $V O_{2, e s t i}$ and $V O_{2, t r u e}$ . (B) The Bland-Altman plot of $V O_{2, e s t i}$ and $V O_{2, t r u e}$ . (Abbreviations: $V O_{2, e s t i}$ : the estimated VO₂ by XGBoost model, $V O_{2, t r u e}$ : true VO₂).