Email this article Seasonal influences on heart rate and ECG TP segment parameters in adolescents living in the European North
- Authors: Russkikh N.G.1, Oskolkova E.M.2, Irzhak L.I.2
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Affiliations:
- Pitirim Sorokin Syktyvkar State University
- Komi Republican Lyceum at Syktyvkar State University
- Issue: Vol 31, No 10 (2024)
- Pages: 730-737
- Section: ORIGINAL STUDY ARTICLES
- URL: https://journal-vniispk.ru/1728-0869/article/view/314550
- DOI: https://doi.org/10.17816/humeco643381
- EDN: https://elibrary.ru/SKMKHB
- ID: 314550
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Abstract
BACKGROUND: Residents of the European North, characterized by a sharply continental climate, develop specific physiological mechanisms to adapt to significant seasonal fluctuations in temperature and other meteorological parameters. Assessing individual cardiac responses to these seasonal variations is essential for understanding physiological survival strategies and adaptation mechanisms in extreme climates.
AIM: To determine the relationships between temporal-frequency parameters of cardiac function based on heart rate and TP segment duration in January and May in 15–16-year-old adolescents residing in Syktyvkar.
METHODS: ECG were recorded in 22 adolescents aged 15–16 years in a standing position and in response to a clinostatic test in January and May ECGs were obtained in lead II, and heart rate and TP segment duration were measured based on 20 consecutive cardiac cycles. Statistical analysis was performed using Microsoft Excel.
RESULTS: The analysis of group mean values for heart rate and TP segment duration revealed no statistically significant seasonal differences. A more detailed analysis of individual data demonstrated significant seasonal variability in both heart rate and TP segment duration. In the winter period, heart rate shifts in response to the clinostatic test were more pronounced and reached up to 39%, compared to May (maximum shift of 23%). A similar trend was observed for TP segment duration. An individualized assessment revealed considerable seasonal shifts in both heart rate and TP segment duration among many of the participants.
CONCLUSION: The study confirmed the necessity of an individualized approach to assessing responses to seasonal environmental factors.
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##article.viewOnOriginalSite##About the authors
Nadezhda G. Russkikh
Pitirim Sorokin Syktyvkar State University
Author for correspondence.
Email: rung76@mail.ru
ORCID iD: 0000-0003-4413-8258
SPIN-code: 1240-4336
Cand. Sci. (Biology), Associate Professor
Russian Federation, 21–142 Petrozavodskaya st, Syktyvkar, 167005Elena M. Oskolkova
Komi Republican Lyceum at Syktyvkar State University
Email: v.oskolkova@mail.ru
SPIN-code: 2922-7958
Cand. Sci. (Biology), Associate Professor
Russian Federation, SyktyvkarLev I. Irzhak
Komi Republican Lyceum at Syktyvkar State University
Email: irzhak31@mail.ru
ORCID iD: 0000-0003-3459-7848
SPIN-code: 1156-8956
Dr. Sci. (Biology), Professor
Russian Federation, SyktyvkarReferences
- Kandror IS. The effect of the polar day and polar night on the human organism under condinions of large settlements. Gig Sanit. 1958;23(5):7–13.
- Irzhak LI, Russkikh NG, Gudkov AB. Analysis of the correlations between ECG components in adolescents both before and after exposure to different types of physical stress in the Subarctic winter conditions. Ekologiya cheloveka (Human Ecology). 2023;30(12):891–900. doi: 10.17816/humeco626830 EDN: JHKGQD
- Russkikh NG, Irzhak LI. Variability of electrocardiogram elements in 6–7-year-old children under the influence of physical activity in the conditions of the European North. Ekologiya cheloveka (Human Ecology). 2018;25(10):32–38. doi: 10.33396/1728-0869-2018-10-32-38 EDN: YLBXOP
- Dernovoy BF, Prosheva VI. The cardiovascular system under conditions of changing hemodynamic load in humans in the North. Syktyvkar: Komi nauchnyi tsentr Ural'skogo otdeleniya; 2024. 168 р. EDN: MCMGDM
- Varlamova NG. Annual cycles of cardiorespiratory function in humans in the European North [dissertation]. Syktyvkar; 2020. 280 р. (In Russ.) EDN: GIKMYP
- Povzun VD, Povzun AA. Seasonal changes in the functional state of the cardiovascular system in female students with different levels of physical activity. Theory and Practice of Physical Culture. 2021;(11):53–55. EDN: ZPVCRZ
- Tolstov PV, Kalyagin AN, Tatarinova MB. Influence of heliogeophysical and climatic factors on the cardiovascular system: a literature review. Cardiovascular Therapy and Prevention. 2023;22(8):92–102. doi: 10.15829/1728-8800-2023-3599 EDN: TTOLAW
- Ignatova AN, Parshukova EA, Oskalenko AM, et al. Corrected QT interval of the electrocardiogram in the prone position in young and healthy men. Russian Journal of Cardiology. 2024;29(S7):17–18. (In Russ.) EDN: VFCPCE
- Irzhak LI, Russkikh NG, Parshukova AN. Variability of time and amplitude ecg indicators in older adults. Journal of Medical and Biological Research. 2021;9(4):355–365. doi: 10.37482/2687-1491-Z073 EDN: CTACMJ
- Irzhak LI, Russkikh NG, Ignatova AN. Correlations between rhythmic activity parameters of the human heart. Journal of Medical and Biological Research. 2024;12(2):172–180. doi: 10.37482/2687-1491-Z192 EDN: LUFMJM
- Dudnikova EA, Gerasimenko MV. Temporal relation of ecg elements and cardiac rhythm at rest. In the World of Scientific Discoveries. 2016;(3):101–113. doi: 10.12731/wsd-2016-3-8 EDN: VUZRYH
- Solonin YuG, Markov AL, Bojko ER. The longitudinal study results of the physiological status of male northerners - participants of the project "Mars-500". Ekologiya cheloveka (Human Ecology). 2017;24(10):39–45. doi: 10.33396/1728-0869-2017-10-39-45 EDN: ZIPIMV
- Makarov LM, Kiseleva II, Dolgikh VV, et al. Normative parameters of ECG in children. Pediatrics. 2006;85(2):4–11. (In Russ.) EDN: KWAAGV
- Kudinova AK, Varlamova NG, Boyko ER. ECG amplitude parameters in men of different ages during submaximal performance testing (exemplified by residents of the European North of Russia). Journal of Medical and Biological Research. 2023;11(3):255–264. doi: 10.37482/2687-1491-Z146 EDN: TGJSAN
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