Cardiorespiratory relationships in young individuals depending on the level of their psychoemotional tension

The aim of the work is to identify the features of cardiorespiratory relationships in healthy students depending on the level of their psychoemotional tension in response to acute stress load. 21 student volunteers aged 18 to 25 years were examined, mean age 20.67±0.5 years, women 80.95% (17 persons), men 19.05% (4 persons). An assessment of indicators of external respiratory function and central hemodynamics was carried out. The stress load was modeled using a verbal-digital Stroop test with the creation of a time deficit. Physiological and psychometric indicators were recorded before and after the load. The obtained results showed that in a state of physiological rest in healthy students, the cardiorespiratory system works in a balanced manner, according to age. Bronchial patency is directly proportional to pressure in the pulmonary artery, venous outflow, and peripheral vascular resistance. After acute stress load, the nature of inter-system interactions in healthy students changes with increased work of the cardiovascular system, while indicators of the respiratory system retain relative stability. Even a short-term increase in mental activity leads to a restructuring of the most important cardiorespiratory relationships.