Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry Ученые записки Крымского федерального университета имени В.И. Вернадского. Биология. Химия. 2413-1725 91875 10.29039/2413-1725-2024-10-3-230-238 БИОЛОГИЧЕСКИЕ НАУКИ BIOLOGICAL SCIENCES БИОЛОГИЧЕСКИЕ НАУКИ REACTIONS OF SYSTEMIC HEMODYNAMICS IN FOREIGN STUDENTS TO LOCAL COLD STIMULATION РЕАКЦИИ СИСТЕМНОЙ ГЕМОДИНАМИКИ У ИНОСТРАННЫХ СТУДЕНТОВ НА локальную ХОЛОДОВУЮ СТИМУЛЯЦИЮ Товмасян Л. А. Tovmasyan L. A. Севрюкова Г. А. Sevryukova G. A. Волгоградский государственный медицинский университет The Volgograd State Medical University 12 12 2024 12 12 2024 10 3 230 238 12 12 2024 https://sn-biolchem.cfuv.ru/reakczii-sistemnoj-gemodinamiki-u-inostrannyh-studentov-na-lokalnuyu-holodovuyu-stimulyacziyu/

Статья посвящена исследованию системной гемодинамики на фоне локального холодового воздействия у индийских студентов (n = 68). Неблагоприятными критериями адаптации к холодовой стимуляции являются: снижение выносливости сердечно-сосудистой системы, нестабильная системная гемодинамика, неадекватная амплитуда колебания пульсового давления в период восстановления, гиперкинетический тип кровообращения. Благоприятными критериями адаптивной реакции организма иностранных студентов в ответ на локальную холодовую стимуляцию являются: уменьшение амплитуды отклонения исследуемых параметров и времени их восстановления. Это необходимо учитывать при оценке приспособительных реакций системы кровообращения у иностранных студентов в процессе адаптации к климато-географическим условиям среды их проживания и обучения.

The article is devoted to the study of systemic hemodynamics in response to local cold stimulation in Indian students (n = 68). Objective: to research of systemic circulation in response to local cold stimulation in foreign students in the process of their adaptation to the sharply continental climate of the Volgograd region. Systemic hemodynamics was assessed at rest, in response to local cold stimulation and during the recovery period at 1, 3 and 5 minutes. Blood pressure (systolic, diastolic), heart rate, pulse pressure, average hemodynamic pressure, and cardiovascular endurance coefficient were recorded. The type of systemic circulation was determined by the cardiac index (hypokinetic, eukinetic, hyperkinetic). As a result of differentiation by cardiac index, it was revealed that the eukinetic type of blood circulation was observed in a larger number of Indian students – 44,9 %; hypo- and hyperkinetic – 25,3 %, 29,8 %, respectively. In response to the cold test, all examined students showed an increase in heart rate; the most pronounced increase in the indicator was found in students with a hypokinetic type of blood circulation. The reactions of students with a hyperkinetic type of blood circulation were characterized by their instability to local cold stimulation: by the 1st minute of the recovery period the heart rate decreased by 9,5 %, by the 3rd minute – the heart rate increased by 5,7 %, and by the 5th minute it decreased again. In students with the hyperkinetic type, there was a significant increase in diastolic pressure and a sharp decrease in pulse pressure at the peak of cold stimulation and then a sharp increase at 1 minute of the recovery period. Unfavorable criteria for adaptation to cold stimulation include: decreased endurance of the cardiovascular system, unstable systemic hemodynamics and inadequate amplitude of pulse pressure fluctuations during the recovery period, and a hyperkinetic type of systemic circulation. Favorable criteria for the adaptive reaction of the body of foreign students in response to local cold stimulation are: a decrease in the amplitude of deviation of the studied parameters and the time of their recovery. This must be used when assessing the adaptive reactions of the cardiovascular system in foreign students in the process of adaptation to the climatic and geographical conditions of their living and studying environment.

 локальное холодовое воздействие системная гемодинамика тип системного кровообращения иностранные студенты адаптация local cold stimulation systemic hemodynamics type of systemic circulation foreign students adaptation.

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