New graphical method for evaluating gas exchange in congestive heart failure

Article Abstract:

A new graphic method has been developed for evaluating gas exchange in congestive heart failure. It was found that the method may be used to standardize gas exchange (GE) evaluation because it displays good precision and for experienced and inexperienced investigators both intrainvestigator and interinvestigator. Averaging techniques less that 30 seconds have more bias when using computer-derived values, but when incorporating the graphic method, the averaging technique chosen has little influence on all measures.

United States, Research, Oxygen, Congestive heart failure, Metabolism, Oxygen in the body, Cardiomyopathy, Myocardial diseases

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Maximal oxygen uptake as a parametric measure of cardiorespiratory capacity

Article Abstract:

A study was conducted to test the hypothesis that there is no significant difference between the maximum oxygen uptake (V[O.sub.2max]) obtained during incremental and supramaximal exercise test performed by highly competitive collegiate middle-distance runners. It was found that (V[O.sub.2max]) is a good parameter that defines the limits of the cardiorespiratory systems' ability to transport oxygen to various tissues of the body.

Texas, Oxygen consumption, Oxygen consumption (Metabolism), Respiratory organs

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Effects of abstinence from cigarette smoking on the cardiorespiratory capacity

Article Abstract:

Research findings demonstrate that abstaining from smoking for seven days significanly improves exercise performance. Data show that plasma cotinine reduces to a negligible level during the same period.

Japan, Influence, Smoking cessation programs, Smoking cessation, Exercise physiology, Cotinine

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