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Wyszukujesz frazę "Kozin, Sergii" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Influence of typological features of the nervous system on individual performance in running for short distances in athletes with visual impairment on the example of an elite athlete
Autorzy:
Kozina, Zhanneta
Chebanu, Olena
Repko, Olena
Kozin, Sergii
Osiptsov, Andrey
Powiązania:
https://bibliotekanauki.pl/articles/1923665.pdf
Data publikacji:
2018-12-19
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
sprint
track and field athletics
vision
limited possibilities
psychophysiological functions
Opis:
Introduction: The purpose of the work is to theoretically and experimentally substantiate the influence of psychophysiological factors on individual performance in athletics sprint in high-qualified athletes on the example of an elite athlete. Material and methods: In this study, participated 1 athlete, 36 years of age, female. Athlete is specializing in short-distance running and long jump, the European Athletics Champion 2010; prize winner of the World Paralympic and Paralympic Games among athletes with visual impairments (T12 category) in 2016. The study was conducted for 5 months. Twice a week, testing was conducted (psychophysiological indicators and running speed); 36 tests of one athlete were conducted. Individual characteristics of the psychophysiological state and results in running for 100 m for five months were analyzed. Results. The models of multiple linear regression between results in 100 m run for an elite athlete with visual impairment and psychophysiological indices are compiled. High importance of psychophysiological indices in individual performance in running on 100 m is shown. Conclusions. Compensatory mechanisms of visual function deficiency were established to maintain high speed in the 100 m run as psychophysiological functions: indicators characteristic of sprinters (speed of simple reaction and motility of the nervous system) and specific indicators (efficiency, strength of the nervous system).
Źródło:
Physical Activity Review; 2018, 6; 266-278
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative biomechanical characteristics of one-arm hang in climbing for beginners and qualified athletes
Autorzy:
Kozin, Sergii
Safronov, Danil
Kozina, Zhanneta
Kniaz, Hanna
Proskurnia, Olexsii
Prontenko, Kostiantyn
Lahno, Olena
Goncharenko, Volodymyr
Kholodniy, Alexandr
Powiązania:
https://bibliotekanauki.pl/articles/306918.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wspinaczka skałkowa
wspinaczka bez liny
charakterystyka kinetyczna
rock climbing
bouldering
technique
kinematic characteristics
Opis:
The aim of the study was to identify the basic kinematic characteristics of the one-arm hang in climbing for beginners and qualified climbers. Material and methods: Technique of the one-arm hang in climbing among 20 leading climbers of the World and Ukraine and 20 beginner male amateur climbers was analyzed. A qualified athlete participated in the demonstration of various models of the one-arm hang performance. By means of Kinovea software 0.8.15, the kinematic characteristics of two models of the technique were analyzed (model 1 for beginner athletes, model 2 for qualified athletes). Results: The presence of significant differences ( p < 0.001) between beginners and qualified athletes in the magnitude of the angles between the shoulder and clavicle, between the spine and the vertical axis in the phase of fixation of the one-arm hang was revealed. The dynamics of the angle between the shoulder and clavicle from the moment of capture of the climbing hold to the phase of fixation of the hang was shown. A theoretical justification for the correct climbing technique regarding to the laws of mechanics and the laws of force interaction in kinematic chain was provided. Conclusions: Beginner athletes carry out the one-arm hang mainly due to the ligamentous apparatus of the joints of the shoulder girdle with minimal inclusion of muscles, which is dangerous by trauma to the ligaments of the shoulder joint. Skilled athletes perform the one-arm hang with trunk and leg muscles included, which reduces the strain from the ligamentous apparatus and lowers the possibility of injury to the ligaments of the shoulder joint.
Źródło:
Acta of Bioengineering and Biomechanics; 2020, 22, 1; 57-66
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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