PhD G.Z. Khalikov¹
PhD I.G. Gerasimova¹
PhD, Professor I.Sh. Mutaeva¹
PhD, Associate Professor R.E. Petrov^1
1Elabuga Institute of Kazan Federal University, Elabuga

Objective of the study was to detect changes in the functional state of middle-distance runners in terms of correction of training influences.
Methods and structure of the study. Sampled for the study were 30 track and field athletes specializing in middle-distance running, who were divided into the Experimental (EG) and Control (CG) Groups, 15 people each. All athletes attended the sports school "Yar Chally" in Naberezhnye Chelny. The study was carried out in three stages: the first stage was conducted in September-October, second - in January-February of the winter competitive stage, third - in May of the pre-competitive stage. For the purposes of the study, we applied the hardware methods focused on the analysis of the athletes' functional state: autonomic nervous system (ANS), cardiovascular system, nervous and muscular systems, overall physical fitness and aerobic capacities, psychofunctional state.
Results and conclusions. The study revealed a positive trend in their functional state rates, manifested in a statistically significant increase in the following indicators: physical working capacity (PWC170 increased by 4.56% at the third stage of the study), psychofunctional state (accuracy of the reaction to a moving object = 11.57±0.51 ms)), contractile and relaxation muscle properties (arbitrary relaxation rate increased by 31.55%, arbitrary contraction rate - by 12.45%), aerobic characteristics, functional and reserve capacities of the body (aerobic metabolic capacity improved by 2.52%, anaerobic metabolic capacity - by 2.43%), mechanisms of cardiac function regulation (stress index increased by 4.28%) and competitive activity (the result in the 800 m race improved by 3.24%, in the 1500 m race - by 1.63%).
The compositional arrangement of training loads of different orientation leads to the effective functioning of the entire body system of the runners.

Keywords: functional state, middle-distance runners, correction, training effects.

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