Key result
Moderate exercise impairs cardiorespiratory coupling and reduces stroke volume in patients with obstructive pulmonary disease.
Why the study?
Comprehensive assessment of cardiorespiratory coupling (CRC) is needed for objective differential diagnosis of adaptive reactions in pulmonological patients.
Do functional tests with hypercapnia and moderate physical exercise reveal differences in cardiorespiratory coupling between patients with pulmonological pathology and healthy volunteers?
Cross-Sectional (n=61)
Do functional tests with hypercapnia and moderate physical exercise reveal differences in cardiorespiratory coupling between patients with pulmonological pathology and healthy volunteers?
Integrated assessment of cardiorespiratory coupling during exercise can help differentiate adaptive reactions and hemodynamic impairments in patients with different pulmonary syndromes.
May differentiate CRC responses to moderate exercise in pulmonological patients; hypothesis-generating and should not yet change practice.
Relevance.The comprehensive assessment of cardiorespiratory coupling (CRC) for the diagnosis of functional adaptation in pulmonological patients is presented.The objective of the studywas to test the complex criteria of CRC for objective differential diagnosis of individual adaptive reactions of pulmonological patients.Methods and materials. 30 volunteers without verified pathology and 31 patients with restrictive and obstructive disorders were examined. All subjects underwent physical examination with traditional routine method using spiroarteriocardiorhythmography (SACR) at rest and during performing functional tests with hypercapnia and moderate physical exercise.Results. We proposed the methodology of integrated assessment of multicomponent system of CRC, which increases the diagnostic precision of SACR in the tasks of predicting the adaptive defects of the organism at different pulmonary syndromes.Conclusion. Breathing with a fixed frequency normalizes the regulation of CRC, both in healthy and pulmonological patients. Moderate physical activity (80 W) modifies the indicators of CRC in pulmonological patients in comparison with the control group statistically due to disorders of the heart rate and circulation. During moderate physical activity, stroke volume (SV) statistically decreases in patients differently: SV were significantly lower in the group with obstructive disorders than in the group with non-obstructive disorders.
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Noskin et al. (2020) conducted a cross-sectional in Pulmonological pathology (restrictive and obstructive disorders) (n=61). Functional tests with hypercapnia and moderate physical exercise vs. Healthy volunteers was evaluated on Cardiorespiratory coupling (CRC) indicators and stroke volume. Moderate physical activity (80 W) altered cardiorespiratory coupling in pulmonological patients compared to controls, with stroke volume decreasing significantly in those with obstructive disorders.
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