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Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors

Ski movement plays an important role during landing preparation, as well as in the whole ski jumping performance. Good landing preparation timing and correct ski position increase the jump length and reduce the impact forces. Inertial motion units (IMUs) placed on the skis could constitute a promisi...

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Detalles Bibliográficos
Autores principales: Bessone, Veronica, Petrat, Johannes, Schwirtz, Ansgar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6603655/
https://www.ncbi.nlm.nih.gov/pubmed/31174278
http://dx.doi.org/10.3390/s19112575
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author Bessone, Veronica
Petrat, Johannes
Schwirtz, Ansgar
author_facet Bessone, Veronica
Petrat, Johannes
Schwirtz, Ansgar
author_sort Bessone, Veronica
collection PubMed
description Ski movement plays an important role during landing preparation, as well as in the whole ski jumping performance. Good landing preparation timing and correct ski position increase the jump length and reduce the impact forces. Inertial motion units (IMUs) placed on the skis could constitute a promising technology for analyzing the ski movements during training. During regular summer trainings, 10 elite athletes (17 ± 1 years) performed jumps while wearing IMUs and wireless force insoles. This set-up enabled the analysis of a possible correlation between ski movements and ground reaction force (GRF) during landing impact. The results showed that the pitch during the landing preparation is the most influential movement on the impact kinetic variables since it is related to the angle of attack, which affects the aerodynamics. The ski position at 0.16 s before landing did not influence the kinetics because the athlete was too close to the ground. During the impact, the roll angle did not correlate with GRF. Moreover, each athlete showed a different movement pattern during the flight phase. Concluding, the combination of IMUs and force insoles is a promising set-up to analyze ski jumping performance thanks to the fast placement, low weight, and high reliability.
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spelling pubmed-66036552019-07-17 Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors Bessone, Veronica Petrat, Johannes Schwirtz, Ansgar Sensors (Basel) Article Ski movement plays an important role during landing preparation, as well as in the whole ski jumping performance. Good landing preparation timing and correct ski position increase the jump length and reduce the impact forces. Inertial motion units (IMUs) placed on the skis could constitute a promising technology for analyzing the ski movements during training. During regular summer trainings, 10 elite athletes (17 ± 1 years) performed jumps while wearing IMUs and wireless force insoles. This set-up enabled the analysis of a possible correlation between ski movements and ground reaction force (GRF) during landing impact. The results showed that the pitch during the landing preparation is the most influential movement on the impact kinetic variables since it is related to the angle of attack, which affects the aerodynamics. The ski position at 0.16 s before landing did not influence the kinetics because the athlete was too close to the ground. During the impact, the roll angle did not correlate with GRF. Moreover, each athlete showed a different movement pattern during the flight phase. Concluding, the combination of IMUs and force insoles is a promising set-up to analyze ski jumping performance thanks to the fast placement, low weight, and high reliability. MDPI 2019-06-06 /pmc/articles/PMC6603655/ /pubmed/31174278 http://dx.doi.org/10.3390/s19112575 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bessone, Veronica
Petrat, Johannes
Schwirtz, Ansgar
Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title_full Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title_fullStr Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title_full_unstemmed Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title_short Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors
title_sort ski position during the flight and landing preparation phases in ski jumping detected with inertial sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6603655/
https://www.ncbi.nlm.nih.gov/pubmed/31174278
http://dx.doi.org/10.3390/s19112575
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