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	Provedor de dados BJMBR (2) Autor Neder,J.A. (2) Sperandio,P.A. (2) Alencar,M.C.N. (1) Almeida,D.R. (1) Arbex,F.F. (1) Barroco,A.C. (1) Borghi-Silva,A. (1) Mazzuco,A. (1) Medeiros,W.M. (1) Reis,M. (1) Souza,A.S. (1) Mais... Palavra-chave Chronic heart failure (1) Chronic obstructive pulmonary disease (1) Exercise (1) Exercise test (1) Heart failure (1) Heart rate (1) Muscle (1) Near-infrared spectroscopy (1) Oxygen (1) Oxygen uptake (1) Recovery kinetics (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última A practical approach to assess leg muscle oxygenation during ramp-incremental cycle ergometry in heart failure BJMBR Barroco,A.C.; Sperandio,P.A.; Reis,M.; Almeida,D.R.; Neder,J.A.. Heart failure is characterized by the inability of the cardiovascular system to maintain oxygen (O2) delivery (i.e., muscle blood flow in non-hypoxemic patients) to meet O2 demands. The resulting increase in fractional O2 extraction can be non-invasively tracked by deoxygenated hemoglobin concentration (deoxi-Hb) as measured by near-infrared spectroscopy (NIRS). We aimed to establish a simplified approach to extract deoxi-Hb-based indices of impaired muscle O2 delivery during rapidly-incrementing exercise in heart failure. We continuously probed the right vastus lateralis muscle with continuous-wave NIRS during a ramp-incremental cardiopulmonary exercise test in 10 patients (left ventricular ejection fraction <35%) and 10 age-matched healthy males.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heart failure; Exercise; Oxygen; Muscle; Near-infrared spectroscopy. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200603 Effects of high- and moderate-intensity exercise on central hemodynamic and oxygen uptake recovery kinetics in CHF-COPD overlap BJMBR Mazzuco,A.; Souza,A.S.; Medeiros,W.M.; Sperandio,P.A.; Alencar,M.C.N.; Arbex,F.F.; Neder,J.A.; Borghi-Silva,A.. The oxygen uptake (V˙O2) kinetics during onset of and recovery from exercise have been shown to provide valuable parameters regarding functional capacity of both chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF) patients. To investigate the influence of comorbidity of COPD in patients with CHF with reduced ejection fraction on recovery from submaximal exercise, 9 CHF-COPD male patients and 10 age-, gender-, and left ventricle ejection fraction (LVEF)-matched CHF patients underwent constant-load exercise tests (CLET) at moderate and high loads. The V˙O2, heart rate (HR), and cardiac output (CO) recovery kinetics were determined for the monoexponential relationship between these variables and time. Within-group analysis showed that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chronic heart failure; Chronic obstructive pulmonary disease; Oxygen uptake; Heart rate; Recovery kinetics; Exercise test. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300602 Registros recuperados: 2 Primeira ... 1 ... Última

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