Functional indicators changes of cardiovascular system during breathing exercises

Breathing is related to many physiological systems, especially the cardiovascular system. Various breathing exercises are widely used both in sports and rehabilitation as a factor, acting on the body's functional status. It is therefore interesting and relevant to the scientific problem whether specific breathing exercises influence cardiovascular functional parameters and their changes during exercise. The object of investigation - cardiovascular functional state indicators and features of the breathing exercises. Aim: To identify the changing features in heart rate during breathing exercise that connects hyperventilation and respiratory detentions. Objectives: 1. To identify heart rate and the changing features of electrocardiogram intervals JT and RR ratio during active hyperventilation and breath holding. 2. To identify whether the cardiovascular functional state indicators changes in response to repeated hyperventilation and respiratory detentions. 3. To identify the fatigue influence on cardiovascular functional state indicators during breathing exercises that connects hyperventilation and breathing detentions. Hypothesis: We believe that specific breathing exercises have a positive effect on cardiovascular functional parameters and their changes during exercise. The methods: 1. Electrocardiography; 2. Arterial blood pressure measurement; 3. Exercise test. Organization of the research: The research was conducted in LSU kinesiology lab in 2012-2014. Participated eight healthy men without regular exercises and not participating in the competitions. The results: the changes in heart rate during breathing exercise that connects hyperventilation and respiratory detentions depends on the task of breathing: heart rate during hyperventilation significantly increases, while holding breath - falling. During breathing exercise that connects hyperventilation and respiratory detentions in fatigue condition recorded significantly lower degree of changes in heart rate, indicating weakened sympathetic and parasympathetic nervous system interactions