The influence of cardiorespiratory fitness level on the relationship between work rates at the aerobic threshold (AerT) and the point of maximal fat oxidation (Fatmax) in untrained adults

Autor: Martin Pühringer, Susanne Ring-Dimitriou
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Sports and Active Living, Vol 6 (2024)
Druh dokumentu: article
ISSN: 2624-9367
DOI: 10.3389/fspor.2024.1321896
Popis: IntroductionIn this study, we investigated the impact of cardiorespiratory fitness (CRF), quantified as peak oxygen consumption (VO2peak), on the relationship between work rates (WR) at the aerobic threshold (AerT) and the point of maximal fat oxidation rate (Fatmax).MethodsA total of 761 untrained adults aged 41–68 completed a one-minute incremental exercise test on a cycle ergometer, using breath-by-breath gas analysis to determine VO2peak, AerT, and Fatmax. AerT was determined using automatic and visual detection methods, and Fatmax was determined using indirect calorimetry. Participants were categorized into CRF-groups: low (
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