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. 2018 Feb 28;2(1):e6. doi: 10.2196/cardio.8574

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©Grant Abt, James Bray, Amanda Clare Benson. Originally published in JMIR Cardio (http://cardio.jmir.org), 28.02.2018.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Cardio, is properly cited. The complete bibliographic information, a link to the original publication on http://cardio.jmir.org, as well as this copyright and license information must be included.

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Pearson correlation between oxygen consumption reserve (%VO₂R) at the treadmill inflection speed and maximal oxygen consumption (VO₂max) for the left Apple Watch.