Article
Objective. Assessment accuracy of registration and the possibility of determining various physiological and biomechanical parameters of the muscles of the lower extremitiesusing a contact photoelectric LED cells.
Methods and organization of research. Thecontact photoelectric LED cells developed at VNIIFK consists of a measuringsystem for registering footcontact with supportand software. The accuracy of recording vertical jumps, aswell as the biomechanical characteristics of jumps on a contact LED track, were investigated.
Results and discussion. Based on the results of the metrological analysis of the jumps, it was determined that the optimal frequency of registration is 1000 Hz.Regression equations are developed to correct the height of jumps. Byjumping height, it is possible to determine variousbiomechanical characteristics of the muscles of the lower extremities,as well as choose the optimal height of step platforms whenjumping into the "depth".The maximumjumping power significantlyaffects the maximumalactate power in the Wingate test, r=0.76. The average support force reflects the level of speed and force of the muscles of the lower extremities. Using the example of speed climbers, it is shown that the normalizedheight of jumps foranthropometric characteristics correlates with the results of competitions 0.66< r<0.76.
Conclusion. Registration of kinematic parameters of vertical jump on contact photoelectric LED cells is an effective tool for operational control of biomechanicalparameters of the muscles of the lower extremities.
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