Identification of maximal steady-state metabolic rate by the change in muscle oxygen saturation
Ian R. Matthews, Logan Heenan, Kathleen G. Fisher, Emma F. Flood, Logan W. Wehrman, Brett S. Kirby, Brad W. Wilkins
Abstract
Muscle O 2 saturation (%SmO 2 ) 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 O 2 saturation and is therefore dependent on muscle oxygen supply-demand balance.
Topics & Concepts
Steady state (chemistry)OxygenSaturation (graph theory)Oxygen saturationMetabolic rateChemistryVO2 maxHeart rateInternal medicineMathematicsMedicineBlood pressureCombinatoricsPhysical chemistryOrganic chemistryCardiovascular and exercise physiologyMuscle activation and electromyography studiesHeart Rate Variability and Autonomic Control