Neurodynamic compensatory mechanisms of visual impairment and biomechanical indicators of running in an elite athlete in the paralympic sprint

Abstract

Introduction. The study of visual dysfunction compensatory mechanisms is of great importance both for the Paralympic athletes, as well as for people suffering from such dysfunctions, especially in cases when analyzer disorders occurred in adulthoodt, and natural adaptation mechanisms could not be included in the process of growth and development of the body. The aim: to identify potential compensatory mechanisms of visual impairment in an elite athlete in the Paralympic sprint based on an analysis of the biomechanical characteristics of running and neurodynamic indicators. Material and methods. A highly qualified athlete participated in the study, specializing in short-distance running and long jump among athletes with visual impairment (category T12). The individual characteristics of the psychophysiological state and the results in running for 60, 80,100, 120, 200 m were analyzed and the biomechanical characteristics of the run for 100 m were determined. In total, 36 series of measurements of each indicator were carried out for 5 months. Results. It is shown that the athlete being examined is an atypical sprinter from the point of view of the properties of the nervous system, development and maintenance of speed at a distance, some biomechanical characteristics of running. The subject athlete is a representative of a mobile and strong type of nervous system, which allows her to maintain a higher speed at a distance compared to other athletes for a longer time, which can be considered as a potential reserve. The role of the auditory analyzer at the time of the examination of the female athlete as a compensatory mechanism of visual dysfunction was not identified. The presence of a small irregularity in the change in the speed and acceleration of the movement of the ankle and knee joints, observed in some steps when lowering the limb after hip removal, was revealed. Conclusin. Revealed a high reliable relationship between the neurodynamic and biomechanical characteristics of the examined female athlete. Improving the biomechanics of running by focusing on the work of a kinestatic analyzer can give an increase in speed at a distance while maintaining it almost to the finish.

Change in the biomechanical characteristics of running as a result of an individual 1-year program for training an elite athlete with visual impairment for Paralympic Games

“…This helped her maintain a higher speed at a distance for a longer time compared with other athletes, which can be considered as a potential reserve [3,4,8]. There was also a slight unevenness in the change in speed and acceleration of the movement of the ankle and knee joints observed in some steps when lowering the limb after the hip was raised [17]. on the basis of a correlation analysis of neurodynamic and biomechanical characteristics, we pointed at an average and high significant relationship between the performance of the nervous system and running biomechanics [17].…”

“…There was also a slight unevenness in the change in speed and acceleration of the movement of the ankle and knee joints observed in some steps when lowering the limb after the hip was raised [17]. on the basis of a correlation analysis of neurodynamic and biomechanical characteristics, we pointed at an average and high significant relationship between the performance of the nervous system and running biomechanics [17]. We concluded that the need to improve the biomechanics of running by focusing on the work of the kinaesthetic analyser could result in an increase in speed at a distance with its preservation almost to the finish line [17].…”