BIOPHYSICAL AND HEMODYNAMIC PARAMETERS IN ATHLETES WITH DIFFERENT TYPES OF AUTONOMIC REGULATION

Abstract

Aim. This paper aims to determine biophysical and hemodynamic parameters in athletes with different types of autonomic regulation. Materials and methods. The study involved 81 male martial artists (mean age 20.9 ± 0.36 years) from the Republican Center for Sports Training of National Teams in the Republic of Sakha (Yakutia). The methodology included anthropometric measurements, bioimpedance analysis (to determine resistance, reactance, and phase angle), and hemodynamic assessment (heart rate, blood pressure, and derived index calculations). The type of autonomic regulation was assessed using the Kerdo index. Results. Sympathetic dominance was observed in 65.4% of the participants, while 33.4% exhibited parasympathetic dominance. Bioimpedance analysis revealed statistically significant increases in resistance and reactance in the sympathetic group compared to the parasympathetic group. This finding suggests differences in cellular membrane structure and hydration status. Hemodynamic assessment showed that the parasympathetic group had a lower heart rate and elevated diastolic pressure, whereas the sympathetic group demonstrated higher values for cardiac performance. Circulation efficiency coefficients were above reference values in both groups, with a more pronounced elevation in the sympathetic group. Conclusion. The obtained data highlight the importance of autonomic regulation for the assessment of cardio­vascular status and the development of individual training programs.