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  • Title: [The indices of external respiration and oxygen homeostasis in human subjects with different types of blood circulation].
    Author: Kozoriz DB.
    Journal: Fiziol Zh (1994); 1997; 43(5-6):55-61. PubMed ID: 9463009.
    Abstract:
    The cardiac output and other parameters of central hemodynamics in human were evaluated by means of tetrapolar rheography. Three types of circulation (hypo-, eu- and hyperkinetic) were picked out according to value of their cardiac index. Quantity of persons in groups of hypo-, eu- and hyperkinetics was as 25:35:40, 85 healthy people of both sex 18-27 years old were examined. There is no statistically significant difference in values of respiration rate, the tidal volume, a minute volume, the oxygen consumption, the concentration of O2 and CO2 in the alveolar air between groups with different types of circulation. The respiration rate, the tidal volume, a minute volume and the oxygen consumption have been studied spirographically. The concentration of O2 and CO2 in the alveolar air have been studied by means of mass-spectrometry. Comparison of the CO defined by means of impedance cardiography (COic) and the CO calculated by oxygen consumption data (COox) demonstrated that COox in group of the hypokinetics is more than COic, the eukinetics have them almost equal, and the hyperkinetics have COic which is more than COox. There is positive correlation between the COic/COox ratio and CI (r = 0.85, P < 0.01). In spite of almost equal oxygen consumption in all groups of human, hypokinetics use less blood volume for providing their body by oxygen.
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