2005
Frequency of the blood pressure spectral peak around 0.1 Hz and baroreflex sensitivity in man
KRTIČKA, Antonín, Bohumil FIŠER, Nataša HONZÍKOVÁ, Zuzana NOVÁKOVÁ, Jiří MOUDR et. al.Základní údaje
Originální název
Frequency of the blood pressure spectral peak around 0.1 Hz and baroreflex sensitivity in man
Název česky
Frekvence vrcholu v pásmu 0,1 HZ ve spektru krevního tlaku a citlivost baroreflexu u člověka
Název anglicky
Frequency of the blood pressure spectral peak around 0.1 Hz and baroreflex sensitivity in man
Autoři
KRTIČKA, Antonín (203 Česká republika), Bohumil FIŠER (203 Česká republika), Nataša HONZÍKOVÁ (203 Česká republika, garant), Zuzana NOVÁKOVÁ (203 Česká republika) a Jiří MOUDR (203 Česká republika)
Vydání
1. vyd. Praha, European Medical and Biological Engineering Conference EMBEC 05, od s. CD-ROM 1411.pdf, 5 s. 2005
Nakladatel
IFMBE
Další údaje
Jazyk
čeština
Typ výsledku
Stať ve sborníku
Obor
30105 Physiology
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14110/05:00014220
Organizační jednotka
Lékařská fakulta
ISSN
Klíčová slova česky
Baroreflex, spektrální analýza
Klíčová slova anglicky
Baroreflex sensitivity; spectral analysis
Změněno: 19. 6. 2009 12:15, prof. MUDr. Bohumil Fišer, CSc.
V originále
According to the mathematical model of the vascular component of baroreflex, the gain of the heart-rate baroreflex sensitivity (BRS) positively correlates with the resonance frequency of the peak in the range of 0.05 - 0.15 Hz. In this study the relationship between BRS and the frequency of the peak in blood-pressure (BP) spectra around 0.1Hz was evaluated 58 subjects at rest and during exercise. A positive correlation between the frequency of the peak in BP-spectra around 0.1 Hz and BRS was confirmed during exercise and during the recovery period respectively. At rest this correlation was not found. This could be explained by the role of autonomic nerves in blood-pressure and heart-rate regulation. BRS mainly corresponds to the gain of parasympathetic activity, which is high at rest. Sympathetic activity, which determines vascular resistance, dominates during exercise.
Anglicky
According to the mathematical model of the vascular component of baroreflex, the gain of the heart-rate baroreflex sensitivity (BRS) positively correlates with the resonance frequency of the peak in the range of 0.05 - 0.15 Hz. In this study the relationship between BRS and the frequency of the peak in blood-pressure (BP) spectra around 0.1Hz was evaluated 58 subjects at rest and during exercise. A positive correlation between the frequency of the peak in BP-spectra around 0.1 Hz and BRS was confirmed during exercise and during the recovery period respectively. At rest this correlation was not found. This could be explained by the role of autonomic nerves in blood-pressure and heart-rate regulation. BRS mainly corresponds to the gain of parasympathetic activity, which is high at rest. Sympathetic activity, which determines vascular resistance, dominates during exercise.
Návaznosti
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