PhD, Associate Professor A.G. Samborskiy
Belgorod State National Research University, Belgorod

Keywords: radio electronics, sprint running, phases of sprint running, dynamics of running speed.

Introduction. Effective management of the training process of short-distance runners requires a systematic assessment of their leading physical qualities. In sprint running, such leading physical qualities are speed and strength abilities.
The purpose of the study is to substantiate the technology of accurate estimation of the time characteristics of the running phases in the sprint to correct the training process of athletes.
Methodology and organization of the study. To register the dynamics of speed in sprint running, we have manufactured a radio-electronic measuring system that allows registering the runner's speed with an accuracy of 0.001 s. The complex consists of the following nodes: six racks with a base; six blocks in which infrared sensors, microcontrollers and radio transmitters of signals are mounted; a receiver receiving radio signals from transmitters; a laptop.
The principle of operation of the complex is as follows: a sprinter while running, running past the blocks, crosses infrared rays and radio signals are transmitted to the receiver and then to the computer, where they are recorded in the form of time values using a specially developed program.
To register the dynamics of the sprint speed in phases at a distance of 100 m , sensors were installed from the start line at the following distance: 5, 15, 30, 60, 80 and 100 m . This arrangement allows you to accurately estimate the following time parameters of the running phases; running out of the pads (5 m), starting acceleration (15 m), gaining maximum speed (30 m), running a distance (60 m–80 m), holding the maximum speed and finishing.
Conclusion. The proposed instrumental complex of radio electronics and computer technology can be successfully used in the training process of highly qualified short-distance runners to determine the time phases of sprint running, compare them with each other and, based on their analysis, design training programs, make adjustments to the strategy and tactics of training sprinters.

Literature

1. Godik M.A. Sprint: methods of control / M.A. Godik, A.N. Gontarenko // Athletics. - 1973. – No. 9 – p. 18.
2. Samborsky A.G. Modern instrumental and computer technologies for assessing the speed and strength abilities of athletes / A.G. Samborsky, A.A. Samborsky // Teoriya i praktika fizicheskoy kultury. -2004. – No. 11. – pp. 11-12.
3. Samborsky A.G. Tests and criteria for evaluating anaerobic performance of track and field sprinters / A.G. Samborsky, S.N. Severin, E.S. Nikolaeva, G.L. Nesterenko // Teoriya i praktika fizicheskoy kultury. – 2023. – No. 6. – pp. 15-17.