Abstract
Introduction. The aim of the study was to find out gender and age peculiarities of the circadian rhythm of heart rate variability in healthy adolescents. Materials and methods: holter-ECG (spectral and temporal parameters of heart rate variability). 354 healthy adolescents were recruited to participate in this study. Results: adolescent girls have higher impact of parasympathetic nervous system to the heart rate modulation in comparison with boys. Relative power of the high-frequency band increased at night in girls and didn't significantly change in boys. Relative power of the low-frequency band decreased at night both in girls and in boys. Conclusion. The activity of divisions of autonomic nervous system in adolescents has circadian profile and differ in children of different sex and age.
Highlights
The aim of the study was to find out gender and age peculiarities of the circadian rhythm of heart rate variability in healthy adolescents
Materials and methods: holter-ECG. 354 healthy adolescents were recruited to participate in this study
Relative power of the highfrequency band increased at night in girls and didn’t significantly change in boys
Summary
The aim of the study was to find out gender and age peculiarities of the circadian rhythm of heart rate variability in healthy adolescents. Materials and methods: holter-ECG (spectral and temporal parameters of heart rate variability). 354 healthy adolescents were recruited to participate in this study. Results: adolescent girls have higher impact of parasympathetic nervous system to the heart rate modulation in comparison with boys. Relative power of the highfrequency band increased at night in girls and didn’t significantly change in boys. Relative power of the low-frequency band decreased at night both in girls and in boys. The activity of divisions of autonomic nervous system in adolescents has circadian profile and differ in children of different sex and age. Вегетативная нервная система, безусловно, является одним из ключевых компонентов регуляции деятельности сердечно-сосудистой системы, обеспечивая адекватность ее функционирования в зависимости от изменяющихся потребностей организма в течение суток [1, 2]
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