Salova Yu.P.
Siberian State University of Physical Education and Sports, Omsk

Lenkova S.A.
Siberian State University of Physical Education and Sports, Omsk

Objective of the study: To determine the information content of the indicators of stage-by-stage complex control for predicting performance in ski sprint (using the results of the 2023-2024 Russian Cup as an example).

Methods and structure of the study: The research work used the analysis of scientific research; pedagogical testing; medical and biological methods, methods of mathematical statistics: Python 3.10 programming language in the Google Colab environment; regression analysis; least squares method; standard Microsoft Office Excel program package.

Results and conclusions: It was revealed that the results of the stage-by-stage complex control are informative for predicting the performance of female skiers in the winter season. A regression model of the rating points of athletes in sprint races of the winter season was developed. It was determined that the time to overcome the fourth and fifth test circles of the field test on roller skis, the time of work on the ski ergometer before reaching the threshold of anaerobic metabolism (TAN), the relative power of work performance at the last stage of the test on the ski ergometer, the level of tension in the response of glycolytic motor units of the right hand in a state of relative rest limit the performance of athletes in sprint races of the ski season.

Keywords: Female cross-country skiers, preparatory period, field testing, laboratory testing, forecasting, sports performance, regression model, Russian Cross-Country Skiing Federation rating points, sprint races.

References:

1. Lenkova S.A., Salova Yu.P., Akselrod A.E. Standartizatsiya metodiki izmereniya latentnogo vremeni vyzvannogo sokrashcheniya myshts verkhnikh i nizhnikh konechnostey u sportsmenov [Standardization of the methodology for measuring the latent time of evoked contraction of muscles of the upper and lower extremities in athletes]. Nauka i sport: sovremennyye tendentsii. 2024. Vol. 12. No. 3. pp. 23-31.
2. Lubysheva L.I. Mediko-biologicheskoye obespecheniye sporta vysshikh dostizheniy i fizicheskoy kultury: sovremennyye vyzovy [Biomedical support high performance sport and physical education: contemporary challenges]. Teoriya i praktika fizicheskoy kultury. 2014. No. 7. 75 p.
3. Platonov V.N. Osnovy podgotovki sportsmenov v olimpiyskom sporte [Fundamentals of training athletes in Olympic sports]. Handbook of the trainer. Moscow: OOO «Printleto», publ. 2021. Vol. 2. pp. 916-923.
4. Popov D.V., Zagurskiy N.S. Organizatsiya fiziologicheskogo testirovaniya biatlonistov i lyzhnikov [Organization of physiological testing of biathletes and skiers]. Sovremennaya sistema sportivnoy podgotovki v biatlone [Modern system of sports training in biathlon]. Proceedings of the IV All-Russian scientific-practical conference, Omsk, April 23-24, 2015. V.A. Aikin, N.S. Zagurskiy [ed.]. Omsk: Federalnoye gosudarstvennoye byudzhetnoye obrazovatel'noye uchrezhdeniye vysshego professionalnogo obrazovaniya «Sibirskiy gosudarstvennyy universitet fizicheskoy kultury i sporta», 2015. pp. 236-248.
5. Reutskaya E.A., Zagurskiy N.S., Romanova Ya.S. Issledovaniye funktsionalnykh vozmozhnostey myshts plechevogo poyasa lyzhnits-gonshchits [Study of functional capabilities of shoulder girdle muscles of female cross-country skiers]. Aktualnyye voprosy podgotovki lyzhnikov-gonshchikov vysokoy kvalifikatsii [Current issues of training highly qualified cross-country skiers]. Proceedings of the IV All-Russian scientific-practical conference of cross-country skiing coaches, Smolensk, April 25-28, 2017. V.V. Yermakov, A.V. Gurskiy [ed.]. Smolensk: Federalnoye gosudarstvennoye byudzhetnoye obrazovatel'noye uchrezhdeniye vysshego obrazovaniya «Smolenskaya gosudarstvennaya akademiya fizicheskoy kultury, sporta i turizma», 2017. pp. 209-213.
6. McGawley K., Waerbeke C.V., Westberg K.J., Andersson E.P. Maximizing recovery time between knock-out races improves sprint cross-country skiing performance. J Sport Health Sci. 2022. No. 1. pp. 21-29.
7. Sandbakk O., Losnegard T., Skattebo O., Hegge A.M., Tonnessen E., Kocbach J. Analysis of classical time-trial performance and technique-specific physiological determinants in elite female cross-country skiers. Frontiers in physiology, 2016. Available at: https://doi.org/10.3389/fphys.2016.00326 (date of access: 12.08.2024).
8. Talsnes R.K., Solli G.S., Kocbach J., Torvik P.O., Sandbakk O. Laboratory- and field-based performance-predictions in cross-country skiing and roller-skiing. PLoS One. 2021. No. 24. Vol.16. 8 p. Available at: 10.1371/journal.pone.0256662 (date of access: 12.08.2024).