Стрессовая реакция и реактивность сердечно-сосудистой системы иностранных студентов Российского университета дружбы народов

The peculiarities of the relationship between the reactivity of the cardiovascular system and stress response under conditions of acclimatization and acculturation stress in foreign students have not been studied. Aim of the work is to analyze the relationship between stress response and activity of the cardiovascular system (CVS) in foreign students from different regions of the world studying in the first year of the Peoples' Friendship University of Russia (RUDN). The objective of the present study was to assess the relationship between stress reaction and cardiovascular reactivity in RUDN University international students. A total of 272 first-year students from Russia, Asia, Africa, Middle East, and Latin America were examined. Assessment of the functional reactivity of cardiovascular system was performed using diagnostic complex AngioScan-01 (AngioScan Electronics, Russia). It has been revealed that Baevsky stress index in first-year students from Asia, Middle East, Africa, and Latin America exceeded that in Russian students by 62, 48, 38 and 63%, respectively. Stiffness index in students originating from Middle East and Africa also exceeded the control values. Oppositely, reflection index indicative of small vessel tonus was found to be the lowest in students from Middle East. The observed difference in pulse wave times 1 and 2, as well as 11% lower values of the derivative integral parameter dTpp in students from Middle East demonstrated lower aorta elasticity, being in agreement with evaluation of stiffness index. Correlation analysis demonstrated a tight (1) и 2-го (Т2) пиков пульсовой волны, а также рассчитываемый на их основе показатель (dTpp), характеризующийся 11%-ным снижением у студентов из стран Ближнего и Среднего Востока, свидетельствует о снижении эластичности аорты, согласуясь с результатами оценки индекса жесткости. Корреляционный анализ продемонстрировал тесную (p < 0,001) взаимосвязь между величиной индекса напряжения Баевского и частотой пульса (r = 0,337), индекса жесткости (r = 0,279), длительности пульсовой волны (r = -0,334) и dTpp (r = -0,265). Практическая значимость. Выявленные взаимосвязи стрессовой реакции и реактивности сердечно-сосудистой системы могут быть использованы при разработке комплекса мероприятий по профилактике хронических заболеваний у студентов