Features of hemodynamics in females with different content of fat and muscle components of the mountainous areas of Zakarpattia under dosed physical loads

Annotation. One of the main limiting factors of aerobic and anaerobic lactate productivity of the body is the ability of the cardiovascular system to deliver oxygen to working muscles. Different geographical landscapes form certain morphological, physiological, and adaptive capabilities in the population. Therefore, the study of hemodynamics in individuals with varying levels of fat and muscle components in residents of mountainous areas is relevant. The study aimed to establish the features of hemodynamics in the response of diastolic pressure to dosed physical exertion in girls from mountainous Zakarpattia areas with different levels of fat and muscle components. 102 female individuals aged 16-20 years were studied. The immediate adaptive responses of diastolic pressure to dosed physical exertion were determined during the PWC 170 cycle ergometric test. The component composition of body mass was determined by the bioelectrical impedance method. To process the experimental data, the average group value of diastolic pressure after dosed loads (M), the error of the arithmetic mean (m), and the percentage of individuals with different types of diastolic pressure reactions were determined. It was established that physical activity causes 4 types of diastolic pressure reactions to physical activity: a decrease relative to the resting state, a decrease until the appearance of the «infinite tone phenomenon», no reaction, and an increase relative to the resting state. An increase in diastolic pressure during bicycle ergometric loads is considered a negative reaction that does not contribute to the effective flow of blood to working muscles. For girls from the mountainous regions of Transkarpathia, the most characteristic type of diastolic pressure reaction to dosed bicycle ergometric loads is a decrease relative to the resting state, and the least characteristic is the «phenomenon of infinite tone» and an increase relative to the resting state. The higher the percentage of muscle in the body, the lower the percentage of individuals with an increase in diastolic pressure during the performance of dosed bicycle ergometric loads. Girls with a high body fat content are characterized by the largest percentage of individuals with a negative reaction of diastolic pressure to dosed bicycle ergometric loads.