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@article{2407818,
author = {Šišáková, Martina and Helánová, Kateřina and Hnatkova, Katerina and Andršová, Irena and Novotný, Tomáš and Malík, Marek},
article_location = {Basel},
article_number = {10},
doi = {http://dx.doi.org/10.3390/jcm13102897},
keywords = {paediatric population; heart rate variability; heart rate; regression slope; age; sympatho-vagal balance},
language = {eng},
issn = {2077-0383},
journal = {Journal of Clinical Medicine},
title = {Intra-Individual Relationship between Heart Rate Variability and the Underlying Heart Rate in Children and Adolescents},
url = {https://www.mdpi.com/2077-0383/13/10/2897},
volume = {13},
year = {2024}
}
TY - JOUR
ID - 2407818
AU - Šišáková, Martina - Helánová, Kateřina - Hnatkova, Katerina - Andršová, Irena - Novotný, Tomáš - Malík, Marek
PY - 2024
TI - Intra-Individual Relationship between Heart Rate Variability and the Underlying Heart Rate in Children and Adolescents
JF - Journal of Clinical Medicine
VL - 13
IS - 10
SP - 1-18
EP - 1-18
PB - MDPI
SN - 20770383
KW - paediatric population
KW - heart rate variability
KW - heart rate
KW - regression slope
KW - age
KW - sympatho-vagal balance
UR - https://www.mdpi.com/2077-0383/13/10/2897
N2 - Background/Objective: The relationship between heart rate and heart rate variability (HRV) indices has been repeatedly studied in adults but limited data are available on the relationship in paediatric populations. Methods: Continuous 12-lead electrocardiograms were recorded in 1016 healthy children and adolescents (534 females) aged 4 to 19 years during postural manoeuvres with rapid changes between 10-min positions of supine -> sitting -> standing -> supine -> standing -> sitting -> supine. In each position, the averaged RR interval was measured together with four HRV indices, namely the SDNN, RMSSD, quasi-normalised high-frequency components (qnHF), and the proportions of low- and high-frequency components (LF/HF). In each subject, the slope of the linear regression between the repeated HRV measurements and the corresponding RR interval averages was calculated. Results: The intra-subject regression slopes, including their confidence intervals, were related to the age and sex of the subjects. The SDNN/RR, RMSSD/RR, and qnHF/RR slopes were significantly steeper (p < 0.001) and the (LF/HF)/RR slopes were significantly shallower (p < 0.001) in younger children compared to older children and adolescents. Conclusions: The study suggests that sympathetic and vagal influences on heart rate are present in both younger and older children. With advancing age, the sympatho-vagal balance gradually develops and allows the vagal control to suppress the sympathetic drive towards higher heart rates seen in younger age children.
ER -
ŠIŠÁKOVÁ, Martina, Kateřina HELÁNOVÁ, Katerina HNATKOVA, Irena ANDRŠOVÁ, Tomáš NOVOTNÝ a Marek MALÍK. Intra-Individual Relationship between Heart Rate Variability and the Underlying Heart Rate in Children and Adolescents. \textit{Journal of Clinical Medicine}. Basel: MDPI, 2024, roč.~13, č.~10, s.~1-18. ISSN~2077-0383. Dostupné z: https://dx.doi.org/10.3390/jcm13102897.
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