Analysis of Relationships between Indicators of Body Component Composition and Cardiovascular System of Young Females with Different Types of Hemodynamics
Authors:   Ivan Franko National University, 1, Universytetska St., Lviv 79000, Ukraine, Nalyvayko N. V. , Bardin O. I. ,   Ivan Franko National University, 1, Universytetska St., Lviv 79000, Ukraine, Pavlova Iu. O. ,   Ivan Boberskiy Lviv State University of Physical Culture, 11, Kostiushko St., Lviv 79000, Ukraine, Levkiv L. V. ,   Ivan Boberskiy Lviv State University of Physical Culture, 11, Kostiushko St., Lviv 79000, Ukraine
Published: November 2020

Representatives of different body constitutions have characteristic features of anthropometric indicators, body composition, endocrine and immune systems, circulatory system. It is important to study the relationship between hemodynamic parameters and the constitutional features of a healthy person, which in turn are due to the diversity of body components. The purpose of the study was to identify correlations between body composition components and cardiovascular parameters in women aged 18-22 with different types of hemodynamics. Material and methods. The study involved 90 healthy female students aged 18 to 22 years (M±m = 19.3±1.3). The women studied at Ivan Franko National University of Lviv, majoring in secondary education (various subject specializations), did not have any acute or chronic diseases, and were assigned to the main medical group. The method of bioelectrical impedance analysis was used in the work. The following heart rate parameters were analyzed: heart rate, blood pressure, minute blood volume, stroke volume, cardiac index, stroke index, total peripheral resistance, peripheral resistivity. The type of central hemodynamics was determined according to the modified scheme of N. I. Arinchin. Correlation analysis was performed according to Pearson. The samples were compared using a Student's t-test, differences at p <0.05 were considered significant. Results and discussion. Eukinetic type of hemodynamics was found in 18.89% of women, hypokinetic in 81.11%. Indicators of the body composition of both groups did not differ (p >0.05). Women with eukinetic type of hemodynamics had higher stroke volume (10.63 ml, p <0.01), shock index (6.64 ml/ m2, p <0.01), minute blood volume 1.87 l/ min, p <0.001), heart rate (20 beats/ min, p <0.05). Women with hypokinetic hemodynamic type had higher (p <0.001) values of total and specific peripheral resistance (1.82 and 1.85 times, respectively). The value of muscle mass correlates with indicators of stroke volume (mean correlation – r = 0.565, p <0.05), minute blood volume (r = 0.524, p <0.05) and total peripheral resistance (r = -0.555, p <0.01). Conclusion. The shock index of women with a hypokinetic type of hemodynamics was weakly related to body mass index (r = -0.238, p <0.05), visceral fat content (r = -0.264, p <0.05), the content of m muscle mass (r = 0.372, p <0.01) and water content (r = 0.289; p <0.05). There were also correlations of the average strength between the heart index and muscle mass content (average correlation – r = 0.425, p <0.01), water content (weak correlation – r = 0.272, p <0.05)