Key result
Adolescent girls show greater parasympathetic heart rate modulation than boys, driven by increased nocturnal high-frequency power.
Why the study?
Gender and age differences in the circadian rhythm of heart rate variability in healthy adolescents were not well characterized.
Observational (n=354)
Heart rate variability in healthy adolescents exhibits significant gender-based differences in circadian autonomic modulation, with girls showing greater parasympathetic influence at night.
Should not guide clinical HRV interpretation by sex in adolescents; leaves open prognostic relevance of these autonomic differences.
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.
No takes yet. Share an insight, caveat, or question.
Anastasia V. Sheveleva (2019) conducted an observational in Healthy (n=354). Female sex vs. Male sex was evaluated on Heart rate variability (spectral and temporal parameters). Adolescent girls had a higher impact of the parasympathetic nervous system on heart rate modulation compared to boys, with relative power of the high-frequency band increasing at night in girls.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: