Evidence map›Paper›PMID 39939445›Full record

ArticleScientific reports2025

Reference ranges of gender- and age-related heart rate variability parameters in Russian children.

Vladimir Shvartz, Vasily Danilov, Svetlana Koroleva, Elena Shvartz, Sergey Donakanyan, Vadim Permyakov, Nadezhda Erastova, Elena Golukhova, “Become a Champion” Trial Investigators

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Vladimir ShvartzBakulev Scientific Center for Cardiovascular Surgery, Rublevskoe Shosse, 135, Moscow, Russia, 121552. shvartz.va@ya.ru.
Vasily DanilovAutonomous Non-Profit Organization of Additional Education Sports School "Become a Champion", Krasnodar, Russia.
Svetlana KorolevaBakulev Scientific Center for Cardiovascular Surgery, Rublevskoe Shosse, 135, Moscow, Russia, 121552.
Elena ShvartzNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Sergey DonakanyanBakulev Scientific Center for Cardiovascular Surgery, Rublevskoe Shosse, 135, Moscow, Russia, 121552.
Vadim PermyakovAutonomous Non-Profit Organization of Additional Education Sports School "Become a Champion", Krasnodar, Russia.
Nadezhda ErastovaFoundation for the Support of Physical Culture and Sports "Become a Champion", Moscow, Russia.
Elena GolukhovaBakulev Scientific Center for Cardiovascular Surgery, Rublevskoe Shosse, 135, Moscow, Russia, 121552.
“Become a Champion” Trial Investigators

Funding

"Become a Champion" Foundation Project No. 01/12/23-SRW
6 · The paper itself

Abstract

To obtain reference ranges for heart rate variability (HRV) parameters in healthy children, taking into account their gender and age. The study included the results of testing 22,468 children ranging 5.5-12.5 years of age. The data were grouped by age and gender. The analysis of HRV parameters was carried out according to the standards described in existing guidelines. It was based on a 5-min rhythmogram obtained from a standard 12-lead electrocardiogram (ECG). The following characteristics of the temporal and spectral analyses of HRV were studied: standard deviation of NN intervals (SDNN), power in the low-frequency band of the HRV spectrum (LF), low-frequency power as mean percentage of total power (TP) of HRV spectrum (LF%), power in the high-frequency band of the HRV spectrum (HF), high-frequency power as mean percentage of TP of HRV spectrum (HF%), power in the very-low-frequency band of HRV (VLF), and LF/HF ratio. The values of SDNN, LF, HF, HF% and TP increased with age, reaching a peak at 8 and 9 years of age. It is notable that the values of SDNN, LF and TP were significantly lower in girls in each age group. The values of LF% and LF/HF decreased with age, with a peak decrease at 8 and 9 years of age, followed by a moderate increase or stabilization. The values of LF% and LF/HF did not differ statistically significantly between boys and girls. The VLF parameter exhibited a clear trend of growth with age and had higher values in boys of each age group. The correlation between HRV and heart rate (HR) was statistically significant. The correlation graphs had similar curves in both gender groups and both age groups. The parameters of the total HRV, as well as the activity of the parasympathetic nervous system (PNS), exhibited similar growth trends with age, with a peak increase in their values at 8 and 9 years of age. HR, as well as the activity of the sympathetic nervous system (SNS), decreased with age. Gender differences also followed a consistent pattern: parameters characterizing the activity of the peripheral nervous system were significantly higher in boys than in girls across all age groups.

Indexed as

Heart RateAge FactorsChildChild, PreschoolElectrocardiographyFemaleHumansMaleReference ValuesRussiaSex FactorsAgeAutonomic nervous systemDevelopmentHeart rateHeart rate variabilityMaturationPediatricsSympathetic nervous system activitySympathovagal balance

Identifiers

PMID39939445
PMCPMC11821906

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