Reproducibility of blood pressure and inter-beat interval variability in man

Title:

Reproducibility of blood pressure and inter-beat interval variability in man

Creator:

Miroslav Jíra, Eva Závodná, Zuzana Nováková, Bohumil Fišer, and Nataša Honzíková

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:8d0d3e1a-11ea-45cb-92b4-53ab0a0cdef4
uuid:8d0d3e1a-11ea-45cb-92b4-53ab0a0cdef4

Subject:

Fyziologie člověka a srovnávací fyziologie, krevní tlak, blood pressure, blood pressure variability, inter-beat interval variability, reproducibility, spectral analysis, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print

Description:

Increased blood pressure variability (BPV) and decreased interbeat interval (heart rate, respectively) variability (IBIV, HRV respectively) are associated with cardiovascular disorders. The aim of this study was to evaluate the reproducibility of BPV and IBIV (HRV) in young healthy individuals. Blood pressure and inter-beat intervals (instantaneous values of heart rate, respectively) were recorded beat-to-beat at rest (5 min, Finapres, breathing at 0.33 Hz) in 152 subjects (19-24 years) 3 times in periods of one week. Systolic (SBPV0.1r/SBPV0.1a) and diastolic (DBPV0.1r/DBPV0.1a) blood pressure variability in relative (r.u.) and absolute (mmHg2/Hz) units and inter-beat interval (IBIV0.1r/IBIV0.1a,), or heart rate (HRV0.1r/HRV0.1a) variability in relative (r.u.) and absolute (ms2/Hz, resp. mHz2) units were determined by the spectral method as spectral power at the frequency of 0.1 Hz and 0.33 Hz (SBPV0.33r/SBPV0.33a, DBPV0.33r/DBPV0.33a, IBIV0.33r/IBIV0.33a, HRV0.33r/HRV0.33a). All indices of BPV and IBIV (resp. HRV) revealed a lower intraindividual than interindividual variability (ANOVA; p<0.001). The mean values of all indices in each subject significantly correlated with distribution of individual values in the same subject (Pearson's correlation coefficient; p<0.001). Blood pressure and inter-beat interval (heart rate) variability is an individual characteristic feature., M. Jíra ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2010 Volume:59 | Number:Suppl 1

Harvested from:

CDK

Metadata only:

false