Faculty of Biology, University of Latvia
EEB
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Acta Univ Latv (2009) 753: 59–68
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Environmental and
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Biology

Acta Univ Latv (2009) 753: 59–68

Orginal Article

Relationship between arterial pressure and pulse wave velocity using photoplethysmography during the post-exercise recovery period

Zbignevs Marcinkevics1*, Mara Greve1, Juris Imants Aivars1, Renars Erts2, Aram Hussain Zehtabi1
1Department of Human and Animal Physiology, Faculty of Biology, University of Latvia, Kronvalda Bulv. 4, Riga LV-1586, Latvia
2Institute of Atomic Physics and Spectroscopy, University of Latvia, Skunu 4, Riga LV-1586, Latvia
*Corresponding author, E-mail: zbigis@latnet.lv

Abstract

Blood pressure is an important parameter for health assessment. Noninvasive continuous beat per beat blood pressure measurement is still a complicated and expensive procedure. There is a lack of agreement on the optimal blood pressure measurement technique. Potentially the most useful indirect parameter for blood pressure monitoring could be pulse wave velocity or the inverse – pulse transit time. The objectives of the study was to determine the relationship between blood pressure and pulse wave velocity under conditions when different cardiovascular parameters change independently but simultaneously with blood pressure and to clarify whether there is a difference in relationship between blood pressure and pulse wave velocity measured by two different methods in different vascular beds. We determined the relationship between arterial blood pressure (systolic, mean) and the pulse wave velocity from 20 healthy volunteers during a post-exercise recovery period after a load cycling test. A significant correlation (p < 0.05) and regression (p < 0.001) between arterial pressure and pulse wave velocity was obtained. Pulse wave velocity measurement measured in different vascular beds showed no impact on correlation of arterial blood pressure and pulse wave velocity. The average difference between measured and calculated arterial blood pressure values did not exceed 10 mm Hg.

Key words: non-invasive continuous blood pressure; photoplethysmography; pulse transit time; pulse wave velocity.

 
Acta Univ Latv (2009) 753: 59–68
 DOI: http://doi.org/10.22364/eeb
EEB

Editor-in-Chief
Prof. Gederts Ievinsh



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