Features of the human cardiovascular and respiratory systems after training in hypoventilation breathing in combination with physical exercises
Objective: to study the features of cardiovascular and respiratory systems after individual training in hypoventilation breathing in combination with physical exercises. Materials and methods: 18 young men were examined before and after training in hypoventilation breathing technique in combination with physical exercises. They were divided into 2 groups: main and control. The technique was used only by subjects of the main group. All subjects took part in 2 similar background examinations before and after training, where ECG, pneumogram, spirometry parameters, and arterial oxygen saturation level were recorded. Results: the study showed increasing of the sympathetic influences and activation of the respiratory system after hypoventilation breathing in combination with physical exercises. The arterial oxygen saturation level was significantly higher after training due to increasing of pulmonary ventilation. Bu tthe tissue oxygen saturation level was lower due to decreased dissociation of oxyhemoglobin. Conclusions: hypoventilation breathing in combination with physical exercises has a significant regulatory impact on the human respiratory system. The indicator of «economization» of the coordinated work of cardiovascular and respiratory systems is the absence of the pulmonary ventilation increase against the decrease of the respiratory rate.