Key result
Age-related HRV changes show postnatal decreases in central frequencies that plateau in adolescence.
Why the study?
The study was conducted to reveal the regularities of age-related dynamics of frequency-dependent regulation of heart rate variability across different age groups from the neonatal period to adulthood.
Observational
The study quantitatively demonstrates age-related consolidated changes in heart rate variability parameters from the neonatal period to adulthood, highlighting a plateau in central frequencies and a peak in autonomic control amplitude during adolescence.
May inform pediatric HRV norms; leaves open clinical utility pending prospective validation.
The aim of the study was to reveal the regularities of the age-related dynamics of the frequency-dependent regulation of heart rate variability (HRV) based on the analysis of Holter ECG recordings from healthy subjects of 4 age groups: neonates, one-year-old infants, adolescents and adults. A wide spectral composition of HRV is shown, consisting of 9 Gilbert-Huang modes in the frequency range from 0.0001 to 2 Hz. A decrease in the central frequencies of all modes is shown in the postnatal period with a plateau in adolescence. A rapid progression of systemic humoral regulation of HRV, characterized by a consolidated increase in the amplitudes of the corresponding modes with a plateau in adolescence, is demonstrated. The dome-shaped character of age-related changes in amplitude of modes associated with autonomic control with a maximum in adolescence is shown. The results obtained quantitatively demonstrate age-related consolidated changes in HRV parameters from neonates to adulthood.
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Гриневич et al. (2024) conducted an observational in Healthy. Age vs. Different age groups was evaluated on Age-related dynamics of the frequency-dependent regulation of heart rate variability (HRV). Age-related changes in heart rate variability from neonates to adulthood demonstrated a decrease in central frequencies of all modes postnatally with a plateau in adolescence.
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