Individual-typological features of regulation of cardiorhythm in foreign students during education process

• Main Authors: Ainura M. Satarkulova, Shadiya Yu. Aisaeva, Almaz S. Shanazarov
• Format: Article
• Language: English
• Published: Center for Scientific Research and Development of Education. 2019-10-01
• Series: Heart Vessels and Transplantation
• Subjects: foreign students; heart rate variability; statistical and spectral characteristics; stress index; vegetative regulation
• Online Access: https://www.hvt-journal.com/articles/art155

Objective: In studies of the mechanisms of human adaptation to professional and educational activities, as well as in clinical practice, the method of mathematical analysis of heart rate variability (HRV) is widely used. Based on this, the aim of this paper is to determine the typology and characteristics of the vegetative regulation of the heart as a prenosological control of the functional state of the body of practically healthy foreign students. Methods: In 2018, 389 male students from India and Pakistan, which are studying at the International higher school of medicine (ISM) aged 17-24, served as test subjects. For each student, the main HRV parameters were recorded in a sitting position for 5 minutes by means of “PSYCHOPHYSIOLOGIST” software and hardware company Medicom MTD  (Russia). Results: In total, 52% of young men had type I (with a moderate predominance of central regulation), 5% - type II (with a pronounced predominance of central regulation), 36% - type III (with a moderate predominance of autonomous regulation), and 7% - type IV (with a pronounced predominance of autonomous regulation). Students with a predominance of central regulation (types I and II) compared with types III and IV (predominance of autonomous regulation) have an excess of sympathetic influences on the heart, as indicated by reliably low values ​​of the SDNN, Mo, TP and high level of SI, which leads to various dysfunctional disorders, especially with severe centralization. In the group of persons with type III, a balance is maintained between the tone of the sympathetic and parasympathetic nervous system, while type IV shows a significant prevalence of parasympathetic effects on the heart rhythm. Conclusion: The results indicate a risk of developing disadaptation in the students' body during education process and the importance of systematic monitoring to detect early cardiac arrhythmias.