Alpine Ski Motion Characteristics in Slalom.
alpine ski
alpine skiing
ski characteristics
ski mechanics
ski motion
ski-snow interaction
Journal
Frontiers in sports and active living
ISSN: 2624-9367
Titre abrégé: Front Sports Act Living
Pays: Switzerland
ID NLM: 101765780
Informations de publication
Date de publication:
2020
2020
Historique:
received:
11
10
2019
accepted:
04
03
2020
entrez:
21
12
2020
pubmed:
22
12
2020
medline:
22
12
2020
Statut:
epublish
Résumé
Important insight into ski function, and ultimately skier technique and tactics, can be gained by studying how measured ski trajectories compare to predictions based on theoretical models of ski-snow interaction mechanics. The aim of this investigation was to use a 3D kinematic data set collected on highly-skilled skiers during slalom race simulations to quantify ski motion characteristics and to compare these measures with theoretical predictions based primarily on ski geometrical characteristics. For slalom turns on moderate steepness (19°), ski edging angles reached maximum values of 65.7 ± 1.7° and 71.0 ± 1.9° for 10 and 13 m gate spacings. Turn radii reached minimum values of 3.96 ± 0.23 and 4.94 ± 0.59 m for the 10 and 13 m courses. These values were in good agreement with theoretical predictions by Howe (2001) of turn radius based on edging angle. Other results of the study support recent developments in understanding of the role which the ski shovel plays in groove formation during carving, and also point to the need for further study of how ski geometrical and physical characteristics interact to determine the ski's trajectory, particularly at low edge angles. These results have important implications for understanding the consequences that ski design can have for skier technique and tactics in competitive slalom skiing.
Identifiants
pubmed: 33345019
doi: 10.3389/fspor.2020.00025
pmc: PMC7739813
doi:
Types de publication
Journal Article
Langues
eng
Pagination
25Informations de copyright
Copyright © 2020 Reid, Haugen, Gilgien, Kipp and Smith.
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