Influence of a voluntary hypoventilation breath in combination with physical loads on cardiovascular and respiratory indexes of human
The article is devoted to studying the influence of a voluntary hypoventilation breath in combination with physical loads on cardiovascular and respiratory indexes of human. The survey was attended by 18 young men, regularly engaged in physical training. Subjects were divided into 2 groups: basic (12 people) and control (6 people). The training of the method of hypoventilation breath in combination with physical load (physical exercises) was carried out twice a week for 60 min for 5 weeks only in the subjects of the basic group. Before and after training in the hypoventilation breathing technique, all subjects took part in 2 similar examinations, where they were asked to perform load testing on a bicycle ergometer (160W) to failure. The condition of the subjects was examined at rest and under load testing. The electrocardiography, pneumogram and volumetric parameters of external respiration were recorded. The saturation level of the arterial blood with oxygen was measured. It is shown that the method of hypoventilation breathing in combination with physical exercises contributes to the increasing of sympathetic effects on the heart, intensification of a blood circulation and a respiration functions, but there is no a respiratory optimization, since pulmonary ventilation is increasing. The saturation of arterial blood with oxygen is statistically significant increases. We believe, that all of this is due to the introduction into the hypoventilation breathing technique of an additional hypoxic stimulus -physical exercises, which can be used to improve a physical performance in the sport of higher achievements.