Key result
Open-circuit acetylene uptake for measuring cardiac output during heavy exercise produced statistically similar results to the Fick O2 method from rest to 90% of maximal O2 consumption.
Why the study?
Does the open-circuit acetylene uptake technique accurately measure cardiac output during exercise compared to the Fick method?
Population
27 subjects (3 subjects with multiple Fick O2 measurements, 12 active women, and 12 elite male athletes)
Comparison
Open-circuit acetylene uptake technique for… vs Fick O2 method (in 3 subjects)
Design
Other
Authors
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May enable noninvasive cardiac output measurement during heavy exercise; leaves open validation in clinical populations.
Observational (n=27)
Does the open-circuit acetylene uptake technique accurately measure cardiac output during exercise compared to the Fick method?
The open-circuit acetylene uptake technique provides a noninvasive and accurate method for measuring cardiac output from rest to heavy exercise without the need for rebreathing.
Barker et al. (1999) conducted an observational in Healthy subjects during exercise (n=27). Open-circuit acetylene (C2H2) uptake technique vs. Fick O2 method was evaluated on Cardiac output (QT) measurement. Open-circuit acetylene uptake for measuring cardiac output during heavy exercise produced statistically similar results to the Fick O2 method from rest to 90% of maximal O2 consumption.
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