title: Could the pulmonary V˙O2off-transient response to maximal short-term exercise be better characterized by a triexponential decay?
abstract: The off-transient pulmonary oxygen uptake (V˙O2) response to a single bout of intense, exhaustive exercise has been characterized over the years by a second-order exponential model. In this paper, we report the superiority of a third-order exponential decay in describing the V˙O2off-kinetics after a maximal cycling exercise lasting 60-s. Our findings are in accordance with a biphasic pattern of phosphocreatine resynthesis when muscle pH is affected.
authors.affiliation: Human Performance Research Group, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil. Electronic address: cruz.rso@gmail.com.
authors.forename: Rogério Santos de Oliveira
authors.initials: RSO
authors.lastname: Cruz
authors.affiliation: Human Performance Research Group, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: Tiago
authors.initials: T
authors.lastname: Turnes
authors.affiliation: Human Performance Research Group, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: Rafael Alves
authors.initials: RA
authors.lastname: de Aguiar
authors.affiliation: Human Performance Research Group, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Caputo
mesh_terms: D000328:Adult; D001642:Bicycling / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D019344:Lactic Acid / Q000097:blood; D008297:Male; D008954:Models, Biological; D015233:Models, Statistical; D018482:Muscle, Skeletal / Q000378:metabolism; D010101:Oxygen Consumption / Q000502:physiology*; D010725:Phosphocreatine / Q000378:metabolism; D011659:Pulmonary Gas Exchange / Q000502:physiology*
chemical_list: D010725:Phosphocreatine; D019344:Lactic Acid
keywords: Body O(2) stores; Fast component; Oxygen uptake; PCr hydrolysis and restoration; Performance; Recovery kinetics