Key result
Age-related HRV changes show postnatal central frequency declines and dome-shaped autonomic control peaking in adolescence.
Why the study?
The study was conducted to reveal the patterns of age-related dynamics of the frequency-dependent regulation of heart rate variability across different life stages.
Observational
Heart rate variability parameters demonstrate consolidated age-related changes from the neonatal period to adulthood, with autonomic control peaking during adolescence.
Requires age-specific pediatric HRV norms; hypothesis-generating for autonomic maturation and outcomes research.
The aim of the study was to reveal the patterns 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 four age groups: neonates, one-year-old infants, adolescents, and adults. A wide spectral composition of HRV is shown, consisting of nine Hilbert-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. Between age groups was evaluated on Heart rate variability (HRV) parameters. Age-related changes in heart rate variability demonstrated a decrease in central frequencies postnatally and a dome-shaped change in autonomic control amplitude peaking in adolescence.
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