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2021
This chapter describes how the most important parameter measured during a cardiopulmonary exercise test (CPET) is the volume of oxygen taken up by the body at peak exercise. This is called the maximum oxygen uptake, or VO2max. Sometimes the terms ‘peak’ and ‘maximal’ are also used to describe oxygen uptake.
William J.M. Kinnear, James H. Hull
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This chapter describes how the most important parameter measured during a cardiopulmonary exercise test (CPET) is the volume of oxygen taken up by the body at peak exercise. This is called the maximum oxygen uptake, or VO2max. Sometimes the terms ‘peak’ and ‘maximal’ are also used to describe oxygen uptake.
William J.M. Kinnear, James H. Hull
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Comprehensive Physiology, 2012
AbstractMuscular exercise requires transitions to and from metabolic rates often exceeding an order of magnitude above resting and places prodigious demands on the oxidative machinery and O2‐transport pathway. The science of kinetics seeks to characterize the dynamic profiles of the respiratory, cardiovascular, and muscular systems and their ...
David C, Poole, Andrew M, Jones
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AbstractMuscular exercise requires transitions to and from metabolic rates often exceeding an order of magnitude above resting and places prodigious demands on the oxidative machinery and O2‐transport pathway. The science of kinetics seeks to characterize the dynamic profiles of the respiratory, cardiovascular, and muscular systems and their ...
David C, Poole, Andrew M, Jones
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New England Journal of Medicine, 1971
KNOWLEDGE of how oxygen is transported from the ambient air to the tissue cells of the body is essential to an understanding of the mechanisms by which the body adapts to the oxygen demands of muscular exercise. The requirement of oxygen by the various tissue cells of the body is met by the combined cardiovascular and pulmonary systems, which function ...
J H, Mitchell, G, Blomqvist
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KNOWLEDGE of how oxygen is transported from the ambient air to the tissue cells of the body is essential to an understanding of the mechanisms by which the body adapts to the oxygen demands of muscular exercise. The requirement of oxygen by the various tissue cells of the body is met by the combined cardiovascular and pulmonary systems, which function ...
J H, Mitchell, G, Blomqvist
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Ambulatory oxygen uptake measurement system
IEEE Transactions on Biomedical Engineering, 1992An apparatus for monitoring prolonged measurement of oxygen uptake without discomfort has been developed. The system is based on the open flow-through principle. The subject wears a hood through which air is drawn by an exhaust blower. Oxygen concentration is kept constant by a servo-controlled blower, so that flow rate is essentially proportional to ...
T, Tamura, K, Sato, T, Togawa
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Oxygen Uptake Kinetics During Exercise
Sports Medicine, 1999The characteristics of oxygen uptake (VO2) kinetics differ with exercise intensity. When exercise is performed at a given work rate which is below lactate threshold (LT), VO2 increases exponentially to a steady-state level. Neither the slope of the increase in VO2 with respect to work rate nor the time constant of VO2 responses has been found to be a ...
F, Xu, E C, Rhodes
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Blood rheology and oxygen uptake
Clinical Hemorheology and Microcirculation, 1990Continuously measured oxygen uptake during constant work exercise (15′ SOW) reveals increasing oxygen consumption in individuals with elevated blood viscosity parameters, indicating persistent contribution of anaerobic glycolysis during steady state exercise far below expected “anaerobic threshold”.
H R, Wolf, S, Witte
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Oxygen uptake/oxygen supply dependency: Fact or fiction?
Acta Anaesthesiologica Scandinavica, 1995More than a decade ago, observations of co‐variance between VO2 and DO2 led to the identification of a condition known as pathological O2 supply dependency. This condition was subsequently observed in critically ill patients with sepsis and acute circulatory failure.
Vincent, Jean Louis, De Backer, Daniel
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Oxygen Uptake and Surfactant Replacement
1988Increased capillary permeability, associated with damage to the alveolar epithelium, can lead to derangement of pulmonary surfactant through a variety of mechanisms. These include: washout of alveolar phospholipids into the interstitial tissue and blood stream; inactivation by plasma components; surfactant depletion by foaming or ventilation with large
B, Lachmann, S, Armbruster, W, Erdmann
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2008
Abstract The two main purposes of Chapter 22 are to (i) explore the methodological issues involved in assessing the O2 kinetic response to exercise in children, and (ii) explain the O2 kinetic response to exercise in children and review the literature regarding changes with age and sex and with respect to conventional markers of aerobic ...
Samantha G. Fawkner, Neil Armstrong
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Abstract The two main purposes of Chapter 22 are to (i) explore the methodological issues involved in assessing the O2 kinetic response to exercise in children, and (ii) explain the O2 kinetic response to exercise in children and review the literature regarding changes with age and sex and with respect to conventional markers of aerobic ...
Samantha G. Fawkner, Neil Armstrong
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Oxygen uptake following deep hypothermia
Anaesthesia, 1977Oxygen uptake of the body (Vo2) was measured in 9 children undergoing surgical correction of congenital heart lesions using cardiopulmonary bypass and deep hypothermia at 20 degrees tc with circulatory arrest. Initial levels of Vo2 following circulatory arrest were found to be four times greater than would have been expected from the normal ...
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