نتایج جستجو برای: peak oxygen

تعداد نتایج: 343122  

Journal: :European Review of Aging and Physical Activity 2010

Journal: :American journal of physiology. Heart and circulatory physiology 2000
G Rådegran B Saltin

It is not known whether the diameter of peripheral conduit arteries may impose a limitation on muscle blood flow and oxygen uptake at peak effort in humans, and it is not clear whether these arteries are dimensioned in relation to the tissue volume they supply or, rather, to the type and intensity of muscular activity. In this study, eight humans, with a peak pulmonary oxygen uptake of 3.90 +/-...

Journal: :European Journal of Preventive Cardiology 2018

افضل‌پور, محبوبه, افضل‌پور, محمداسماعیل, زربان, اصغر,

  Background and Aim: Blood donation causes changes in physical and physiological characteristics. The purpose of this study was to investigate the effects of blood donation on the exercise performance and some of hematologic parameters in physically active and non-active women.   Materials and Methods: In this experimental study, 14 active women with history of physical exercises more than ...

Journal: :Journal of applied physiology 2008
C Lundby P Robach R Boushel J J Thomsen P Rasmussen M Koskolou J A L Calbet

This study was performed to test the hypothesis that administration of recombinant human erythropoietin (rHuEpo) in humans increases maximal oxygen consumption by augmenting the maximal oxygen carrying capacity of blood. Systemic and leg oxygen delivery and oxygen uptake were studied during exercise in eight subjects before and after 13 wk of rHuEpo treatment and after isovolemic hemodilution t...

2015
Emmanuel O Ako Nathaniel Barber Grzegorz T Kowalik Jennifer Steeden Vivek Muthurangu

Background Reduced exercise capacity is a common feature of many cardiovascular diseases. Quantitative assessment of exercise capacity is usually achieved by measuring peak oxygen consumption (VO2). However, measuring peak VO2 alone neglects the different components of reduced exercise capacity: namely reduced cardiac output (CO) and oxygen extraction (ΔcO2). A better approach would be to simul...

2018
Bigyan Pudasaini Guo-Ling Yang Chen Yang Jian Guo Ping Yuan Yang Wen-Lan Rui Zhang Lan Wang Qin-Hua Zhao Su-Gang Gong Rong Jiang Tian-Xiang Chen Xiong Wei Jin-Ming Liu

BACKGROUND To study the oxygen uptake efficiency and determine usefulness of submaximal parameters of oxygen uptake in systemic lupus erythematosus associated pulmonary arterial hypertension (SLE PAH) on performing a cardiopulmonary exercise test (CPET). METHODS CPET was performed in 21 SLE PAH patients, equal number of idiopathic pulmonary arterial hypertension (IPAH) patients and controls. ...

Catalytic partial oxidation (CPOX) has recently received particular attention because it is one of the most attractive technologies for the production of syngas and hydrogen in small to medium scales. Current study subjected to partial oxidation reforming which have simultaneously studied the effect of the fuel composition and flow rates of methane-oxygen mixed gas on the SOFCs performances. In...

Journal: :Archivos de cardiologia de Mexico 2013
Hermes Ilarraza-Lomelí Javier Castañeda-López Jonathan Myers Irma Miranda Paula Quiroga María-Dolores Rius César Lopez-de-la-Vega Enrique Vallejo Juan Calderón Javier Figueroa Alfonso Buendía

OBJECTIVE Cardiopulmonary exercise testing is a tool that helps clinicians to establish diagnosis and calculate risk stratification in adults. However, the utility of this test among children with congenital heart disease has not been fully explored. The goal of this study was to describe reference values for cardiopulmonary performance of healthy children. METHODS This study included 103 app...

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