Synchronous Changes in Microcirculation Parameters of the Upper Limbs in Asymmetric Physical Loads

Mezentseva, L. V.; Перцов, С. С.

doi:10.1134/s036211972004009x

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…One of the important issues in the researches of physiological systems is the investigation of mechanisms providing the stability of their functioning. The results of this study demonstrated that the functioning of MCR system in symmetrical temporal head regions in humans followed strict mathematical laws described by a system of linear differential equations (2). Hence the stability conditions for this system could be investigated with the help of standard mathematical methods.…”

Section: Mathematical Modelmentioning

confidence: 87%

“…The degree of sustainability of circulation in symmetrical regions of microcirculatory bloodstream was determined by the parameters of mathematical model described by the system of differential Eqs. (2). The introduced criteria of correlation between the numerical values of these parameters expressed in Eqs.…”

Section: Discussionmentioning

confidence: 99%

“…Currently, a wealth of experimental data has been gained empirically, demonstrating the quantitative characteristics of perfusion parameters and vascular tone components in different organs and tissues of animals and humans [1][2][3][4][5][6]. The researches discovered the specificity of microcirculation control in paired organs associated with functional asymmetry [1,2]. Significant correlations were found between the microcirculation (MCR) parameters of symmetrical observation sides both at rest [1] and under external influences [2].…”

mentioning

confidence: 99%

“…The researches discovered the specificity of microcirculation control in paired organs associated with functional asymmetry [1,2]. Significant correlations were found between the microcirculation (MCR) parameters of symmetrical observation sides both at rest [1] and under external influences [2]. However, available empirical data on the studied processes do not explain the systemic regulatory mechanisms underlying these phenomena.…”

mentioning

confidence: 99%

“…Numerical values of {T1, T2, ζ} parameters determining the stability of mathematical model(2) in the initial state and after short-term hypoxic exposure, as well as the results of stability test of the MCR system (TRUE or FALSE) for all subjects…”

mentioning

confidence: 99%

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Effect of Hypoxia on the Stability of Microcirculation Parameters in the Temporal Head Regions of Humans

2022

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Abstract— A new computational and experimental method for assessing the stability of oscillatory processes occurring in the microcirculation (MCR) system is proposed. The technique is based on the analysis of the stability of a differential equations system describing fluctuations in the MCR parameters of blood in symmetrical temporal head regions of humans. Using this technique, we have investigated the change in the stability of MCR parameters of the symmetrical temporal head regions under hypoxic conditions. The study has involved 10 healthy male volunteers (18–19 years). The state of short-term hypoxia has been induced using a normobaric ReOxy Cardio device (S.A. Aimediq, Luxembourg) certified in the Russian Federation for obtaining hypoxic and hyperoxic gas mixtures based on biofeedback with a built-in pulse oximetric sensor (Masimo Rad-5, United States). Synchronous measurements of MCR parameters of symmetrical temporal head regions at the basal state and immediately after short-term hypoxic exposure have been carried out by the method of laser Doppler flowmetry (LDF) using a two-channel LAKK–02 device (LAZMA Research and Development enterprise, Russia). It has been shown that short-term hypoxic effects change the numerical values of the stability parameters in all subjects within the boundaries of stability levels. However, the response to hypoxic exposure has been very individual in different subjects. The proposed method allows for personalized assessments of the fitness level and resistance to hypoxic influences in different subject groups.

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Section: Mathematical Modelmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%