PhD I.M. Mazikin^1,2
PhD, Associate Professor A.F. Meshcheryakov¹
Associate Professor G.A. Lebedinskaya³
PhD, Associate Professor L.V. Nerobeeva^4
1I.M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation, Moscow
²Moscow State University of Sport and Tourism, Moscow
³I.P. Pavlov Ryazan State Medical University, Ryazan
⁴St. Petersburg State University of Economics, St. Petersburg

Keywords: spiroergometry, psychotest, effectiveness of purposeful activity.

Introduction. The study of the relationship of psychophysiological and functional parameters with the effectiveness of competitive activity is an urgent task of sports physiology, which allows us to detect predictors of athletic performance. An objective assessment of the physiological and psychophysiological characteristics of athletes makes it possible to implement an individual approach to sports training [1].
The purpose of the study is to identify the interrelationships of stress test markers, the motivational structure of personality and competitive performance.
Methodology and organization of the research. Stress test (Lode treadmill, Cosmed gas analyzer, Ramp protocol), V.K. Gorbachevsky test (NS-Psychotest, Neurosoft) and competitive running testing at 3 and 5 thousand meters (400 m stadium, electronic timing) were used to examine 70 qualified skiers aged 20-23 years. Were determined: maximum speed (km/h), operating time (s), maximum oxygen consumption in absolute (MPC) and relative (MPC/kg) units, lactate indicators (La, mM/l), speed (km/h) at the level of the aerobic-anaerobic threshold (AnP rate), percentage of consumption oxygen from MPC (%MPC), maximum heart rate (HR). Formation of groups according to the performance criterion – cluster analysis (K-means method): The 1st "low–yielding" cluster consists of 36 people, the 2nd "high-yielding" cluster consists of 34 people.
The results of the study and their discussion. The motivational structure of athletes' behavior in the identified clusters also has significant differences. Motives: internal, cognitive, competitive, self-esteem, assessment of one's potential, patterns of results, initiative significantly prevail in the 2nd quartile. The motive for the change of activity and the significance of the results is in the 1st quartile. Motives: the complexity of the task, volitional effort, the planned level of mobilization, and the expected level of results do not actually differ.
The correlation analysis of the components of the basis of behavior and running competition indicators also revealed significant differences in clusters. Four correlations were found in athletes of the first cluster: one (internal motive) with effectiveness at 5000 m (-0.37) and three (motive: internal, avoidance, change of activity) with effectiveness at 3000 m (respectively: -0.56, 0.35, -0.34), while representatives of the second – ten: effectiveness at 5000 m is associated with an adversarial (-0.5) motive, an assessment of one's own potential (-0.49), a motive for changing activities (0.4) and initiative (-0.38); performance at 3000 m – with cognitive (-0.55), internal (-0.41), avoidance (-0.41), competitive (-0.38) motives, initiative (-0.42) and result expectation (-0.37). In addition, in both clusters, the number of connections with an efficiency of 3000 m prevails over the longer one: in the 1st cluster, 3 connections against 1, in the second – 6 against 4.
Conclusions. The number, intensity and quality of the connections between the stress test markers of the motivational basis of behavior and competitive performance depend on the length of the distance and the athlete's fitness, which determines the achievement of a high result in athletes of the 2nd cluster.

Literature

1. Mazikin I.M., Lapkin M.M., Akulina M.V., Volkov V.F. The influence of biomechanical characteristics of sprinter girls on the effectiveness of stress testing. Teoriya i praktika fizicheskoy kultury. 2024. No. 2.pp. 27-29.