We study respiratory-related oscillations of blood flow in microvessels of the human skin. The reasons for generation of peripheral blood flow oscillations in the frequency band 0.14-0.6 Hz are as follows: cardio-respiratory interactions, pressure variations in the venous part of the circulatory system caused by respiratory excursions of the chest and the effect of the sympathetic nervous system on the vascular tone. In , we described the spatial heterogeneity of 0.3 Hz oscillations. This work presents a pilot study in which a number of physiological tests, an appropriate measurement system and data processing algorithms were developed. At spontaneous respiration, the 0.3 Hz oscillations turned out to be stochastic, whereas in controlled respiratory tests the spatial coherence of oscillations increases twice. The protocols and methods proposed here can help to clarify whether the heterogeneity of respiratory-related blood flow oscillations exists on the skin surface.
|Title of host publication
|2020 11th Conference of the European Study Group on Cardiovascular Oscillations
|Subtitle of host publication
|Computation and Modelling in Physiology: New Challenges and Opportunities, ESGCO 2020
|Published - 4 Aug 2020
|11th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2020 - Virtual, Online, Italy
Duration: 15 Jul 2020 → …
|2020 11th Conference of the European Study Group on Cardiovascular Oscillations: Computation and Modelling in Physiology: New Challenges and Opportunities, ESGCO 2020
|11th Conference of the European Study Group on Cardiovascular Oscillations, ESGCO 2020
|15/07/20 → …
Bibliographical noteFunding Information:
*Supported by the Russian Science Foundation (Project No.18-15-00201). 1Irina Mizeva is with Institute of Continuous Media Mechanics UrB RAS Perm, Russia &Research & Development Center of Biomedical Photonics Orel State University Orel, Russia email@example.com 2Elena Potapova, Igor Kozlov, Viktor Dremin, Andrey Dunaev are with Research & Development Center of Biomedical Photonics Orel State University Orel, Russia potapova ev firstname.lastname@example.org
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