Measurement of blood filling in lower limbs by bioimpedance method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU136940" target="_blank" >RIV/00216305:26220/17:PU136940 - isvavai.cz</a>
Alternative codes found
RIV/00159816:_____/17:00067629
Result on the web
<a href="https://biomed.papers.upol.cz/pdfs/dou/9900/00/500.pdf" target="_blank" >https://biomed.papers.upol.cz/pdfs/dou/9900/00/500.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5507/bp.2017.055" target="_blank" >10.5507/bp.2017.055</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of blood filling in lower limbs by bioimpedance method
Original language description
Background: Cardiovascular diseases are the leading causes of mortality and morbidity in modern society. The autonomic nervous systems innervate blood vessel walls and regulate contraction and wall tension. The head-up tilt test is frequently performed for evaluating sympathetic nervous system function. The filling of the lower extremities during the head-up tilt test is measured by the bioimpedance method. Increased blood volume in the area of interest increases the electrical impedance of this area. Methods: We used a mathematical fitting model to express the measured data. A B time constant of a decreased bioimpedance signal during a head-up tilt was calculated for the right leg during various time intervals of tilt duration. We optimized the duration in a study protocol based on corresponding measured data and a calculated model. A group of 22 healthy volunteers (11 men and 11 women) participated in the study protocol: the protocol included a 2-minute supine position and 5-minute head-up tilt test. Results: According to the Mann-Whitney test, there were no statistical differences in the B constant between the groups of men and women. Our results showed the optimal time duration of the head-up tilt test to be about 270 s. Conclusions: Calculating the time constant for decreased bioimpedance during a head-up tilt test might lead to a simple pre-diagnostic method for performing a non-invasive evaluation of the cardiovascular system.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
BIOMEDICAL PAPERS-OLOMOUC
ISSN
1213-8118
e-ISSN
1804-7521
Volume of the periodical
neuveden
Issue of the periodical within the volume
161
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
5
Pages from-to
„S15“-„S19“
UT code for WoS article
000428945000003
EID of the result in the Scopus database
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