The Development of LF/HF Ratio and its Dependence on the Mean Heart Rate in Children and Adolescents

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F15%3A00064006" target="_blank" >RIV/00159816:_____/15:00064006 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
The Development of LF/HF Ratio and its Dependence on the Mean Heart Rate in Children and Adolescents
Original language description
We have shown previously how the dependency of the baroreflex sensitivity on the inter-beat intervals (IBI) can cover up the developmental changes. Therefore we decided to analyse LF/HF ratio. We have calculated mean IBI and heart rate (HR) and their power spectra in 424 subjects (11 - 20 years) from the 5-min continuous blood pressure monitoring at rest. LF/HF ratios of IBI and HR spectra were determined. The statistic was done for a whole group (WG), and for subgroups of older children (C:11-15 years), adolescents (A:16-20 years), and for 10 particular age-subgroups. In the WG and the A, we shown significant relationship between age and mean IBI or HR, but LF/HF IBI or LF/HF HR were age-independent. LF/HF IBI or LF/HF HR was also significantly age-dependent. Negative correlation of IBI vs. LF/HF IBI and a positive correlation of HR vs. LF/HF HR in the WG and in C or A was found. Relationship IBI vs. LF/HF IBI and HR vs. LF/HF HR were in particular age-subgroups from 11 to 14 years, b
Czech name
—
Czech description
—

Project
<a href="/en/project/ED1.100%2F02%2F0123" target="_blank" >ED1.100/02/0123: St. Anne´s University Hospital Brno - International Clinical Research Center (FNUSA-ICRC)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)