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[The resonance phenomenon in the human cardiorespiratory-hemodynamic system]
Izvestiia Akademii Nauk SSSR. Seriia Biologicheskaia
|July 1, 1990
Summary
In healthy humans, the cardiac cycle and vessel autofluctuations maintain a constant ratio. This cardiac-respiratory-hemodynamic resonance synchronizes bodily rhythms during exertion and increases RVG amplitude.
Area of Science:
- Physiology
- Cardiovascular Science
- Respiratory Physiology
Context:
- Investigates the relationship between cardiac cycle, vessel autofluctuations, and respiratory rhythms in humans.
- Examines physiological responses during resting, working, and post-constriction hyperemia states.
- Focuses on the synchronization of fluctuation processes within the cardiac-respiratory-hemodynamic system.
Purpose:
- To determine the constant ratio between the cardiac cycle period and vessel autofluctuation period in healthy resting humans.
- To explore the correlation between the pneumo-cycle duration and respiratory arrhythmia period.
- To analyze the phenomenon of resonance in the cardiac-respiratory-hemodynamic system during physiological stress and its effect on RVG amplitude.
Summary:
- A constant ratio (1.309 +/- 0.068) exists between the cardiac cycle and vessel autofluctuations in healthy resting humans.
- A similar correlation is observed between the pneumo-cycle and respiratory arrhythmia.
- Resonance in the cardiac-respiratory-hemodynamic system during exertion and post-constriction hyperemia synchronizes fluctuations and enhances RVG amplitude.
Impact:
- Provides a quantitative physiological marker for cardiovascular and respiratory health.
- Elucidates the mechanisms of synchronization within the integrated cardiac-respiratory-hemodynamic system.
- Offers insights into hemodynamic regulation and RVG amplitude modulation during physiological challenges.