The Effect of Regular Physical Activity at the Initial Stage of the Training Process on Central Hemodynamics in Preschool and Early School-Age Children

The present study is devoted to the analysis of central hemodynamic parameters in children aged 5–10 years who participate in sports and their peers with a less active lifestyle. The study reveals the influence of regular physical activity on heart rate (HR), systolic (SBP), and diastolic blood pressure (DBP). Most children who are actively engaged in sports demonstrate a slight decrease in resting heart rate. They also show a reduction in both systolic and diastolic blood pressure, which may indicate that their cardiovascular system is successfully adapting to regular physical exercise. Gender differences in the response to physical activity were identified. Among female athletes aged 7-8 years, a significant increase in both SBP and DBP was observed.