Journal of Siberian Federal University. Humanities & Social Sciences / Experimental and Analytical Determination of the Coordinates of the Common Center of Gravity of the Athlete’s Body in Competitive Exercises

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Issue
Journal of Siberian Federal University. Humanities & Social Sciences. 2023 16 (2)
Authors
Zagrevskiy, Valery I.; Zagrevskiy, Oleg I.; Lavshuk, Dmitry A.
Contact information
Zagrevskiy, Valery I.: Mogilev State A. Kuleshov University Mogilev, Belarus; National Research Tomsk State University Tomsk, Russian Federasion; ORCID: 0000-0002-2128-6066; Zagrevskiy, Oleg I.: Tyumen State University Tyumen, Russian Federasion; National Research Tomsk State University Tomsk, Russian Federasion; ORCID: 0000-0002-1758-6592; Lavshuk, Dmitry A.: Mogilev State A. Kuleshov University Mogilev, Belarus; ; ORCID: 0000-0002-3201-6838
Keywords
biomechanical system; coordinates of the common center of gravity; mathematical model; exercise technique; equilibrium parameters
Abstract

The purpose of the performed research is to develop a methodology for experimentally and analytically determining the coordinates of the common center of gravity of the athlete’s body. The following methods were used in the study: the method of theoretical analysis, the method of weighing, the method of mathematical modeling, the method of computational experiment on a computer. An experimental and analytical method has been developed for determining the coordinates of the common center of gravity of the athlete’s body with an arbitrary angle value in the athlete’s shoulder, hip and knee joints when performing sports exercises. The method differs from analogs by the minimum number of weighings, the absence of force measuring devices as part of the measuring circuit, and the minimization of computational procedures in a mathematical model of the coordinates of the general center of gravity of a biomechanical system. The step-by-step work made it possible to develop an original methodology for determining the coordinates of the common center of gravity of the athlete’s body at arbitrary, anatomically permissible inter-link angles. The technique allows you to quickly obtain biomechanical information about the trajectory of the common center of mass of the athlete’s body, when performing sports exercises, based on the measurement of optical registration of movements, taking into account the mass-inertial characteristics of the links of the biomechanical system

Pages
217–226
EDN
VPXWSG
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/149826

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