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Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit

Researchers involved in skiing investigations postulate Telemark skiing as an alternative technique to Alpine skiing, which may be associated with lower injury risk. A free heel of the boot, and a boot that enables flexion of the toe, are characteristic features. The aim of this research was to comp...

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Autores principales: Aschenbrenner, Piotr, Krawczyński, Bartosz, Krawczyński, Marcin, Grzywacz, Tomasz, Erdmann, Włodzimierz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098951/
https://www.ncbi.nlm.nih.gov/pubmed/37050508
http://dx.doi.org/10.3390/s23073448
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author Aschenbrenner, Piotr
Krawczyński, Bartosz
Krawczyński, Marcin
Grzywacz, Tomasz
Erdmann, Włodzimierz
author_facet Aschenbrenner, Piotr
Krawczyński, Bartosz
Krawczyński, Marcin
Grzywacz, Tomasz
Erdmann, Włodzimierz
author_sort Aschenbrenner, Piotr
collection PubMed
description Researchers involved in skiing investigations postulate Telemark skiing as an alternative technique to Alpine skiing, which may be associated with lower injury risk. A free heel of the boot, and a boot that enables flexion of the toe, are characteristic features. The aim of this research was to compare three types of turns on Telemark skis, through a biomechanical description of each skiing technique. Seven professional skiers were investigated. Two cameras and the MyoMotion Research Pro system were utilized. Eighteen wireless IMU sensors were mounted on each skier’s body. For every skier, five runs were recorded for each of the three turning techniques. Velocity of run, range of movement, angular velocity in joints, time sequences, and order of initialization of movement were obtained. A higher velocity of skiing was obtained during the parallel (14.2 m/s) and rotational turns (14.9 m/s), compared to a low–high turn (8.9 m/s). A comparison of knee angles, revealed similar minimum (18 and 16 degrees) and maximum (143 and 147 degrees) values achieved during the parallel and rotational techniques, which differed considerably from the low–high technique (27 and 121 degrees, respectively). There were no significant differences in trunk rotation angles. A detailed analysis of the Telemark skiing technique revealed novel information on how turns are executed by well-trained skiers and the impact of different approaches.
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spelling pubmed-100989512023-04-14 Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit Aschenbrenner, Piotr Krawczyński, Bartosz Krawczyński, Marcin Grzywacz, Tomasz Erdmann, Włodzimierz Sensors (Basel) Communication Researchers involved in skiing investigations postulate Telemark skiing as an alternative technique to Alpine skiing, which may be associated with lower injury risk. A free heel of the boot, and a boot that enables flexion of the toe, are characteristic features. The aim of this research was to compare three types of turns on Telemark skis, through a biomechanical description of each skiing technique. Seven professional skiers were investigated. Two cameras and the MyoMotion Research Pro system were utilized. Eighteen wireless IMU sensors were mounted on each skier’s body. For every skier, five runs were recorded for each of the three turning techniques. Velocity of run, range of movement, angular velocity in joints, time sequences, and order of initialization of movement were obtained. A higher velocity of skiing was obtained during the parallel (14.2 m/s) and rotational turns (14.9 m/s), compared to a low–high turn (8.9 m/s). A comparison of knee angles, revealed similar minimum (18 and 16 degrees) and maximum (143 and 147 degrees) values achieved during the parallel and rotational techniques, which differed considerably from the low–high technique (27 and 121 degrees, respectively). There were no significant differences in trunk rotation angles. A detailed analysis of the Telemark skiing technique revealed novel information on how turns are executed by well-trained skiers and the impact of different approaches. MDPI 2023-03-25 /pmc/articles/PMC10098951/ /pubmed/37050508 http://dx.doi.org/10.3390/s23073448 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Aschenbrenner, Piotr
Krawczyński, Bartosz
Krawczyński, Marcin
Grzywacz, Tomasz
Erdmann, Włodzimierz
Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title_full Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title_fullStr Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title_full_unstemmed Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title_short Description of Telemark Skiing Technique Using Full Body Inertial Measurement Unit
title_sort description of telemark skiing technique using full body inertial measurement unit
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098951/
https://www.ncbi.nlm.nih.gov/pubmed/37050508
http://dx.doi.org/10.3390/s23073448
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