Age-related characteristics of functional development of the circulatory system in schoolchildren from indigenous minorities of the Russian Northeast
A Cross-Sectional Study
Bibliographic Data
| ID | 5968308 |
|---|---|
| Authors | Alesya N Loskutova (0000-0001-5350-8893, Far Eastern Branch of the Russian Academy of Sciences, corresponding author) |
| Year | 2025 |
| Volume | 32 |
| Issue | 4 |
| Pages | 246-256 |
| Publication date | 2025-07-28 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Ekologiya Cheloveka (Human Ecology (JOURNAL) |
| Journal identifiers | ISSN: 1728-0869 • E-ISSN: 2949-1444 |
| Publisher | ECO-Vector LLC (PUBLISHER • RU) |
| DOI | 10.17816/humeco678605 |
| OpenAlex | W4412827281 |
| Language | EN |
| References cited | 17 |
Background: Changes in cardiovascular functioning are among the key criteria for assessing the adaptive potential of the human body and general health status.Aim: To examine age-related changes in functional parameters of the cardiovascular system (CVS) in schoolchildren belonging to the indigenous minorities of the Russian Northeast.Methods: Between 2021 and 2023, key cardiovascular parameters were analyzed in 174 girls and 196 boys belonging to the Indigenous Minorities of the North (Even, Koryak, and Itelmen), who accounted for 62.5% of the total sample (592 individuals). Participants were seated at rest, and blood pressure and heart rate were measured three times using the Nissei DS-1862 automatic blood pressure monitor (Japan). The following parameters were calculated using conventional methods: stroke volume, cardiac output, total peripheral vascular resistance, Kerdo autonomic index, cardiac index, type of circulatory self-regulation, and functional change index.Results: The most intensive functional development of the circulatory system in boys was observed between the ages of 13 and 16 years, whereas girls characterized by earlier changes beginning at 10-11 years, continuing into adolescence. Throughout the age-related changes of all examined parameters, no stable trend toward a decrease in heart rate was identified. A high prevalence of tachycardia and increased sympathetic activity of the autonomic nervous system was observed in adolescents. Boys aged 14-15 years had higher stroke volume compared with the girls, and those aged 16-17 years showed higher systolic and pulse pressure. The girls demonstrated higher mean diastolic blood pressure at the age of 14-15 years and greater total peripheral resistance at the age of 14 years. Regardless of sex, the cardiac type of circulatory self-regulation predominated. A hyperkinetic circulation type prevailed across age groups, except in 17-year-old boys, who demonstrated a eukinetic circulation type.Conclusion: Age-related changes in the functional development of the circulatory system in schoolchildren belonging to the indigenous populations occur against a background of satisfactory adaptation, though with evidence of regulatory strain during transient exposure to environmental factors
Biology · Cross-sectional study · Geography · Indigenous · Pathology · Sociology · Cardiovascular and exercise physiology · Demography · Heart Rate Variability and Autonomic Control · Human Health and Disease · Medicine · Ecology · Gerontology
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| Citation velocity | historical |
|---|---|
| Highly cited | No |