Cargando…
Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study
Biomechanical studies of winter sports are challenging due to environmental conditions which cannot be mimicked in a laboratory. In this study, a methodological approach was developed merging 2D video recordings with sensor-based motion capture to investigate ski jump landings. A reference measureme...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374433/ https://www.ncbi.nlm.nih.gov/pubmed/32646033 http://dx.doi.org/10.3390/s20133805 |
_version_ | 1783561697939685376 |
---|---|
author | Kurpiers, Nicolas Petrone, Nicola Supej, Matej Wisser, Anna Hansen, Jakob Kersting, Uwe G. |
author_facet | Kurpiers, Nicolas Petrone, Nicola Supej, Matej Wisser, Anna Hansen, Jakob Kersting, Uwe G. |
author_sort | Kurpiers, Nicolas |
collection | PubMed |
description | Biomechanical studies of winter sports are challenging due to environmental conditions which cannot be mimicked in a laboratory. In this study, a methodological approach was developed merging 2D video recordings with sensor-based motion capture to investigate ski jump landings. A reference measurement was carried out in a laboratory, and subsequently, the method was exemplified in a field study by assessing the effect of a ski boot modification on landing kinematics. Landings of four expert skiers were filmed under field conditions in the jump plane, and full body kinematics were measured with an inertial motion unit (IMU) -based motion capture suit. This exemplary study revealed that the combination of video and IMU data is viable. However, only one skier was able to make use of the added boot flexibility, likely due to an extended training time with the modified boot. In this case, maximum knee flexion changed by 36° and maximum ankle flexion by 13°, whereas the other three skiers changed only marginally. The results confirm that 2D video merged with IMU data are suitable for jump analyses in winter sports, and that the modified boot will allow for alterations in landing technique provided that enough time for training is given. |
format | Online Article Text |
id | pubmed-7374433 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73744332020-08-06 Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study Kurpiers, Nicolas Petrone, Nicola Supej, Matej Wisser, Anna Hansen, Jakob Kersting, Uwe G. Sensors (Basel) Letter Biomechanical studies of winter sports are challenging due to environmental conditions which cannot be mimicked in a laboratory. In this study, a methodological approach was developed merging 2D video recordings with sensor-based motion capture to investigate ski jump landings. A reference measurement was carried out in a laboratory, and subsequently, the method was exemplified in a field study by assessing the effect of a ski boot modification on landing kinematics. Landings of four expert skiers were filmed under field conditions in the jump plane, and full body kinematics were measured with an inertial motion unit (IMU) -based motion capture suit. This exemplary study revealed that the combination of video and IMU data is viable. However, only one skier was able to make use of the added boot flexibility, likely due to an extended training time with the modified boot. In this case, maximum knee flexion changed by 36° and maximum ankle flexion by 13°, whereas the other three skiers changed only marginally. The results confirm that 2D video merged with IMU data are suitable for jump analyses in winter sports, and that the modified boot will allow for alterations in landing technique provided that enough time for training is given. MDPI 2020-07-07 /pmc/articles/PMC7374433/ /pubmed/32646033 http://dx.doi.org/10.3390/s20133805 Text en © 2020 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 | Letter Kurpiers, Nicolas Petrone, Nicola Supej, Matej Wisser, Anna Hansen, Jakob Kersting, Uwe G. Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title | Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title_full | Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title_fullStr | Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title_full_unstemmed | Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title_short | Application of Inertial Motion Unit-Based Kinematics to Assess the Effect of Boot Modifications on Ski Jump Landings—A Methodological Study |
title_sort | application of inertial motion unit-based kinematics to assess the effect of boot modifications on ski jump landings—a methodological study |
topic | Letter |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374433/ https://www.ncbi.nlm.nih.gov/pubmed/32646033 http://dx.doi.org/10.3390/s20133805 |
work_keys_str_mv | AT kurpiersnicolas applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy AT petronenicola applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy AT supejmatej applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy AT wisseranna applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy AT hansenjakob applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy AT kerstinguweg applicationofinertialmotionunitbasedkinematicstoassesstheeffectofbootmodificationsonskijumplandingsamethodologicalstudy |