KINEMATIC ANALYSIS OF CLASSICAL SKIING TECHNIQUE IN SPRINT FOR YOUNG AND ADULT ATHLETES
Keywords:
cross-country skiing, young cross-country skiers, highly skilled cross-country skiers, sprint, video analysis, alternating two-step classical course, angular characteristics.Abstract
Objective of the study was to determine the features of the kinematics of the alternating two-step course of young athletes at a sprint distance and to compare the angular characteristics of the main phases of the course with the indicators of the strongest athletes in the world.
Methods and structure of the study. A biomechanical analysis of the classic skiing technique for men and women in the prologesprint at the stage of the World Cup and boys and girls aged 14-16 at the distance of the Russian Championship was performed. The angular characteristics of the key moments of the ski course are determined and the main differences in the technique of young and adult athletes of various qualifications are revealed.
Results and conclusions. The analysis of the kinematic characteristics shows that the technique of sprinting uphill skiers and skiers of different ages and levels of fitness has significant differences. Men and boys more often use the modern running version of the alternating two-step move, women, although they run uphill without a rolling phase, as a rule, demonstrate the traditional version without active bending of the fly leg. Young men use various variants of uphill sprinting, including the modern way of movement "Klaebostyle", but the average values of the angular characteristics in the lunge, ski stop and sit-down positions indicate the existing reserves for improving the technique.
References
Novikova N.B., Belyova A.N., Ivanova I.G., Kotelevskaya N.B. Vozrastnie i gendernie osobennosti tehniki poperemennogo dvuhshazhnogo klassicheskogo hoda [Age and gender features of the technique of the alternating two-step classical move]. Teoriya i praktika fizicheskoy kultury. 2021. No. 11. p. 109.
Novikova N.B. Biomehanicheskiyanaliz begovogo variant poperemennogo dvuhshazhnogo hoda «Klaebo style» [Biomechanical analysis of the running variant of the alternating two-step stroke «Klaebo style»]. Aktualnyye voprosy podgotovki lyzhnikov-gonshchikov vysokoy kvalifikatsii [Topical issues of training highly qualified ski racers]. Proceedings national scientific-practical conference. 2020. pp. 143-150.
Pellegrini B., Zoppirolli C., Stella F., Bortolan L. et al. (2020). Biomechanical analysis of the «running» vs. «conventional» diagonal stride uphill techniques as performed by elite cross-country skiers. J Sport Health Sci.11 (1): 30-39. DOI: 10.1016/j.jshs.2020.04.011
Pellegrini B., Stöggl T.L., Holmberg H-C (2018). Developments in the Biomechanics and Equipment of Olympic Cross-Country Skiers.Front Physiol. 24 (9): 976. DOI: 10.3389/fphys.2018.00976.
