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American Physiological Society, Journal of Applied Physiology, 6(134), p. 1349-1358, 2023

DOI: 10.1152/japplphysiol.00706.2022

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Identification of maximal steady-state metabolic rate by the change in muscle oxygen saturation

Journal article published in 2023 by Ian R. Matthews, Logan J. Heenan, Kathleen G. Fisher, Emma F. Flood, Logan W. Wehrman, Brett S. Kirby ORCID, Brad W. Wilkins ORCID
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Muscle O2 saturation (%SmO2) rate can be used to not only identify sustainable from unsustainable exercise intensities but also delineate the transition from heavy to severe exercise domains. This report is the first to identify, and then validate, that the highest steady-state metabolic rate is related to a zero-slope muscle O2 saturation and is therefore dependent on muscle oxygen supply-demand balance.