NOVÁKOVÁ, Zuzana, Antonín KRTIČKA and Nataša HONZÍKOVÁ. The relationship between baroreflex sensitivity and variability of blood pressure and pulse interval at a frequency of 0.1 Hz during exercise. Abstract. In 77.Fyziologické dny - sborník abstraktů. 1st ed. České Budějovice: Česká fyziologická společnost,Slovenská fyziologická společnost,Biologická fakulta Jihočeské univerzita v Českých Budějovicích,Entomologický ú. AV, 2001, p. 82.
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Basic information
Original name The relationship between baroreflex sensitivity and variability of blood pressure and pulse interval at a frequency of 0.1 Hz during exercise. Abstract.
Authors NOVÁKOVÁ, Zuzana (203 Czech Republic, guarantor), Antonín KRTIČKA and Nataša HONZÍKOVÁ (203 Czech Republic).
Edition 1. vyd. České Budějovice, 77.Fyziologické dny - sborník abstraktů, p. 82-82, 2001.
Publisher Česká fyziologická společnost,Slovenská fyziologická společnost,Biologická fakulta Jihočeské univerzita v Českých Budějovicích,Entomologický ú. AV
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 30105 Physiology
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14110/01:00004982
Organization unit Faculty of Medicine
Keywords in English baroreflex sensitivity; spectral analysis; blood pressure variability; heart rate variability
Tags baroreflex sensitivity, blood pressure variability, heart rate variability, spectral analysis
Changed by Changed by: MUDr. Zuzana Nováková, Ph.D., učo 2702. Changed: 22/6/2009 09:39.
Abstract
The correlation between baroreflex sensitivity (BRS), the component of spectrum at the frequency of 0.1 Hz of inter-beat intervals (IBI), and systolic blood pressure variability (SBP) at rest and during exercise was studied. Blood pressure of 38 healthy subjects(aged 21-22 years) was recorded beat-to beat at rest (3min), during exercise (0.5 W/kg of body weight, 9 min) and at rest (6min) after exercise. Spectral analysis of recording of SBP and IBI was performed. Four techniques for continuous determination of BRS were used: seguence method, modified complex demodulation, alpha index technique and LP model technique. BRS at rest damps blood pressure variability at the frequency of 0.1 Hz by changes in IBI. During exercise, when BRS is low, the changes of IBI are not high enough to damp blood pressure variability.
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