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Ventilatory response kinetics and breathing pattern during exercise at different chemoreceptive drives.

I S Breslav·G G Isaev
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Abstract

For studying the effects of different chemoreceptive drives on the ventilatory responses to muscular work, experiments were carried out with 16 healthy men. They accomplished a 5-min exercise while breathing with different gas mixtures or after hyperventilation. As was shown, the rapid component of the exercise hyperpnea increased with intensifying the hypercapnic and/or hypoxic stimuli and was reduced or abolished with attenuation of these stimuli. At this, hypoxic drive exerted primary influence on the response kinetics. In the steady-state exercise effects of the chemoreceptive stimuli were modulated by biomechanical factors, which leads to a energetically optimum breathing pattern being formed.

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Administration, InhalationAdultCarbon DioxideChemoreceptor CellsExerciseHumansKineticsMaleOxygenRespiratory MusclesClinical TrialJournal ArticleRandomized Controlled Trial

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BibTeXRIS

I S Breslav, G G Isaev. 1989. Ventilatory response kinetics and breathing pattern during exercise at different chemoreceptive drives.. https://doi.org/10.1055/s-2007-1024911

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