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Technical determinants of biathlon standing shooting performance before and after race simulation
KIHU - Research Institute for Olympic Sports, Jyväskylä, and Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland.
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.ORCID iD: 0000-0002-5574-8679
KIHU – Research Institute for Olympic Sports, Jyväskylä, Finland.
Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, and Finnish Biathlon Association, Finland.
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2018 (English)In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 28, no 6, p. 1700-1707Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to identify performance determining factors in biathlon standing shooting in rest and after intense exercise. Eight Finnish national and nine junior team biathletes participated in the study. Participants fired 40 resting shots (REST) and 2*5 competition simulation shots (LOAD) after 5 min of roller skiing at 95% of peak heart rate. Hit percentage, aiming point trajectory and postural balance were measured from each shot. Cleanness of triggering (ATV, movement of the aiming point 0-0.2 s before the shot) and vertical stability of hold (DevY) were the most important components affecting shooting performance both in REST (DevY, R=-0.61, p<0.01; ATV, R=-0.65, p<0.01) and in LOAD (DevY, R=-0.50, p<0.05; ATV, R=-0.77, p<0.001). Postural balance, especially in shooting direction, was related to DevY and ATV. Stability of hold in horizontal (F(1,15)=7.025, p<0.05) and vertical (F(1,15)=21.285, p<0.001) directions, aiming accuracy (F(1,15)=9.060, p<0.01), and cleanness of triggering (F(1,15)=59.584, p<0.001) decreased from REST to LOAD, accompanied by a decrease in postural balance. National and junior team biathletes differed only in hit percentage in REST (92±8 % vs. 81±8 %, p<0.05) and left leg postural balance in shooting direction in LOAD (0.31±0.18 mm vs. 0.52±0.20 mm, p<0.05), and the intense exercise affected the shooting technical components similarly in both national and junior groups. Biathletes should focus on cleanness of triggering and vertical stability of hold in order to improve biathlon standing shooting performance. More stable postural balance in shooting direction could help to improve these shooting technical components.

Place, publisher, year, edition, pages
2018. Vol. 28, no 6, p. 1700-1707
Keywords [en]
performance, biomechanics, technique, optoelectronic measures, postural balance
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-33148DOI: 10.1111/sms.13072ISI: 000433594000008PubMedID: 29446507OAI: oai:DiVA.org:miun-33148DiVA, id: diva2:1187621
Available from: 2018-03-05 Created: 2018-03-05 Last updated: 2018-06-29Bibliographically approved

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Laaksonen, Marko

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