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JRM Vol.36 No.5 pp. 1243-1254
doi: 10.20965/jrm.2024.p1243
(2024)

Paper:

3D Motion Analysis of Alpine Skiing on Steep Slope Gate in Men’s Giant Slalom

Yohei Yoshida* ORCID Icon and Masahiro Yuki** ORCID Icon

*Faculty of Human Health Science, Matsumoto University
2095-1 Niimura, Matsumoto, Nagano 390-1295, Japan

**Sport Sciences Department, Institute of Education, Shinshu University
6-Ro, Nishinagano, Nagano, Nagano 380-8544, Japan

Received:
February 22, 2024
Accepted:
August 21, 2024
Published:
October 20, 2024
Keywords:
potential energy, radius of curvature, attack angle of skis, angulation, skiing technique
Abstract

This study aimed to determine the characteristics of the elite skiers and the techniques required to improve their performance in the men’s giant slalom alpine skiing competition by conducting a three-dimensional (3D) motion analysis. The top nine skiers were compared with the next nine skiers using 3D motion analysis in a single-gate section with an average slope of 25.6°. The results revealed the following characteristics of superior skiing techniques. (1) The skiers started the turn from a high position relative to the gate and obtained high velocity by skiing in a gentle arc using potential energy. (2) By quickly rotating and edging the skis, the skiers were able to gain centripetal force early, enter the gate, ski in the direction of the fall line, and change skiing direction timely. (3) The skiers had quick inward leaning of the body and early lowering of the pelvis on the outside ski to form an angulation posture to resist the large external forces acting on the body during the turn.

Characteristics of superior skiing techniques

Characteristics of superior skiing techniques

Cite this article as:
Y. Yoshida and M. Yuki, “3D Motion Analysis of Alpine Skiing on Steep Slope Gate in Men’s Giant Slalom,” J. Robot. Mechatron., Vol.36 No.5, pp. 1243-1254, 2024.
Data files:
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Last updated on Nov. 04, 2024