Journal of Human Sport and Exercise

Dynamic rifle stability is not influenced by exercise intensity in young biathletes

Michal Žák, Ivan Struhár, David Janoušek, Jan Ondráček

Abstract

The aim of the study was to analyse and find out potential dependence between the dynamic rifle stability during targeting and percentage pressure value on the trigger 1 second and 0.5 second before the shot in different intensities of the physical load. Fifteen national youth and junior elite biathletes (ten women, five men) from a team of the Czech Republic participated in the study. All participants completed measuring of the dynamic behavior of the rifle in rest and after roller skiing in three different exercise intensities: Intensity 1 = 70 % of HRmax (maximum heart rate), average speed 4.1 – 4.6 m·s-1; Intensity 2 = 80 % of HRmax, average speed 4.5 – 5.0 m·s-1; Intensity 3 = 90 % of HRmax, average speed 4.9 – 5.4 m·s-1. Each bout consisted from a distance of one km. They shot in standing position with using their own biathlons rifle with a fixed accelerometer and trigger sensor. The data used in our research showed that the dynamic rifle stability is not influenced by exercise intensity neither in the men nor women group. However, our study demonstrated that the rifle stability is better in time 0.5 second before the shot than in time 1 second before the shot. The measurement of triggering in our study showed that participants are able to work with their fingers on the triggers in similar quality in the racing load as well as without the previous physical load.

Keywords

Biathlon training; Shooting analysis; Physical load

References

Gallicchio, G., Finkenzeller, T., Sattlecker, G., Lindinger, S., & Hoedlmoser, K. (2018). The influence of physical exercise on the relation between the phase of cardiac cycle and shooting accuracy in biathlon. In European journal of sport science, 1-9. https://doi.org/10.1080/17461391.2018.1535626

Haug, B. I. B. (2018). Computer Vision For Aimpoint Tracking In Biathlon (Master's thesis). Trondheim: Norwegian University of Science and Technology.

Høydal, K.L. & Nord, I. (2017). The importance of heart rate monitors in controlling intensity during training and competition in junior biathlon athletes. Journal of Human Sport and Exercise, 12(2), 358-366. https://doi.org/10.14198/jhse.2017.122.12

Ihalainen, S., Laaksonen, M. S., Kuitunen, S., Leppävuori, A., Mikkola, J., Lindinger, S. J., & Linnamo, V. (2018). Technical determinants of biathlon standing shooting performance before and after race simulation. In Scandinavian journal of medicine & science in sports, 28(6), 1700-1707. https://doi.org/10.1111/sms.13072

Laaksonen, M. S., Finkenzeller, T., Holmberg, H. C., & Sattlecker, G. (2018). The influence of physiobiomechanical parameters, technical aspects of shooting, and psychophysiological factors on biathlon performance: A review. In Journal of Sport and Health Science, 7(4), 394-404. https://doi.org/10.1016/j.jshs.2018.09.003

Mononen, K., Konttinen, N., Viitasalo, J., & Era, P. (2007). Relationships between postural balance, rifle stability and shooting accuracy among novice rifle shooters. In Scandinavian Journal of Medicine & Science in Sports, 17(2), 180-185. https://doi.org/10.1111/j.1600-0838.2006.00549.x

Sattlecker, G., Buchecker, M., Rampl, J., Müller, E., & Lindinger, S.J. (2013). Biomechanical aspects in biathlon shooting. In Science and Nordic Skiing II. University of Jyväskylä, Finland, 33-40.

Sattlecker, G., Buchecker, M., Gressenbauer, C., Müller, E., & Lindinger, S. (2015). Effects of biathlon specific fatigue on shooting performance. In 3rd International Congress on Science and Nordic Skiing (ICSNS) (pp. 38). Vuokatti.

Sattlecker, G., Buchecker, M., Gressenbauer, C., Müller, E., & Lindinger, S. J. (2017). Factors discriminating high from low score performance in biathlon shooting. In International journal of sports physiology and performance, 12(3), 377-384. https://doi.org/10.1123/ijspp.2016-0195

Vonheim, A. (2012). The effect of skiing intensity on shooting performance in biathlon. Master thesis. Trondheim: Norwegian University of Science and Technology.

Žák, M., Hřebíčková, S., Ondráček, J., Králová, D. M., Václavík, J., Hnatiak, J., & Rybář, O. (2016). Metodika střelby v biatlonu. Retrieved from: http://elportal.cz/publikace/metodika-biatlon

Žák, M., Ondráček, J., Hřebíčková, & S., Struhár, I. (2017). How one-year of systematic training changes the shooting performance in a group of young biathletes? In Martin Zvonař, Zuzana Sajdlová. Proceedings of the 11th International Conference on Kinanthropology, 994-1003.




DOI: https://doi.org/10.14198/jhse.2020.154.04





Copyright (c) 2018 Journal of Human Sport and Exercise

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.