Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings

Small differences in turn cycle structure, invisible to the naked eye, could be decisive in improving descent performance. The aim of this study was to assess the influence of turn cycle structure on the performance of elite alpine skiers using an inertial measurement unit (IMU) in different slalom...

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Authors: Pérez-Chirinos Buxadé, Carla, Padullés Riu, Josep Maria, Gavaldà Castet, Dani, Trabucchi, Michela|||0000-0003-1198-8184, Fernández-Valdés, Bruno, Tuyà Viñas, Sílvia, Moras Feliu, Gerard
Format: article
Publication Date:2022
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/403546
Online Access:https://hdl.handle.net/2117/403546
https://dx.doi.org/10.3390/s22030902
Access Level:Open access
Keyword:Biomechanics
Inertial measurement unit
Wearable sensor
Sports biomechanics
Kinematics
Skiing
Turn phases
Accelerometer
Magnetometer
Biomecànica
Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
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oai_identifier_str oai:upcommons.upc.edu:2117/403546
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spelling Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settingsPérez-Chirinos Buxadé, CarlaPadullés Riu, Josep MariaGavaldà Castet, DaniTrabucchi, Michela|||0000-0003-1198-8184Fernández-Valdés, BrunoTuyà Viñas, SílviaMoras Feliu, GerardBiomechanicsInertial measurement unitWearable sensorSports biomechanicsKinematicsSkiingTurn phasesAccelerometerMagnetometerBiomecànicaÀrees temàtiques de la UPC::Enginyeria biomèdica::BiomecànicaSmall differences in turn cycle structure, invisible to the naked eye, could be decisive in improving descent performance. The aim of this study was to assess the influence of turn cycle structure on the performance of elite alpine skiers using an inertial measurement unit (IMU) in different slalom (SL) course settings. Four SL courses were set: a flat-turned (FT), a steep-turned (ST), a flat-straighter (FS) and a steep-straighter (SS). Five elite alpine skiers (21.2 ± 3.3 years, 180.2 ± 5.6 cm, 72.8 ± 6.6 kg) completed several runs at maximum speed for each SL course. A total of 77 runs were obtained. Fast total times correlate with a longer initiation (INI) time in FT, a shorter steering time out of the turn (STEOUT) in the FT and FS and a shorter total steering time (STEIN+OUT) in the FT and SS courses. The linear mixed model used for the analysis revealed that in the FT-course for each second increase in the INI time, the total time is reduced by 0.45 s, and for every one-second increase in the STEOUT and STEIN+OUT times, the total time increases by 0.48 s and 0.31 s, respectively. Thus, to enhance descent performance, the skier should lengthen the INI time and shorten the STEOUT and STEIN+OUT time. Future studies could use an IMU to detect turn phases and analyze them using the other built-in sensors.Peer ReviewedMultidisciplinary Digital Publishing Institute (MDPI)20222022-02-0120242024-02-29journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/403546https://dx.doi.org/10.3390/s22030902reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4035462026-05-27T15:37:01Z
dc.title.none.fl_str_mv Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
title Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
spellingShingle Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
Pérez-Chirinos Buxadé, Carla
Biomechanics
Inertial measurement unit
Wearable sensor
Sports biomechanics
Kinematics
Skiing
Turn phases
Accelerometer
Magnetometer
Biomecànica
Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
title_short Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
title_full Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
title_fullStr Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
title_full_unstemmed Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
title_sort Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings
dc.creator.none.fl_str_mv Pérez-Chirinos Buxadé, Carla
Padullés Riu, Josep Maria
Gavaldà Castet, Dani
Trabucchi, Michela|||0000-0003-1198-8184
Fernández-Valdés, Bruno
Tuyà Viñas, Sílvia
Moras Feliu, Gerard
author Pérez-Chirinos Buxadé, Carla
author_facet Pérez-Chirinos Buxadé, Carla
Padullés Riu, Josep Maria
Gavaldà Castet, Dani
Trabucchi, Michela|||0000-0003-1198-8184
Fernández-Valdés, Bruno
Tuyà Viñas, Sílvia
Moras Feliu, Gerard
author_role author
author2 Padullés Riu, Josep Maria
Gavaldà Castet, Dani
Trabucchi, Michela|||0000-0003-1198-8184
Fernández-Valdés, Bruno
Tuyà Viñas, Sílvia
Moras Feliu, Gerard
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Biomechanics
Inertial measurement unit
Wearable sensor
Sports biomechanics
Kinematics
Skiing
Turn phases
Accelerometer
Magnetometer
Biomecànica
Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
topic Biomechanics
Inertial measurement unit
Wearable sensor
Sports biomechanics
Kinematics
Skiing
Turn phases
Accelerometer
Magnetometer
Biomecànica
Àrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
description Small differences in turn cycle structure, invisible to the naked eye, could be decisive in improving descent performance. The aim of this study was to assess the influence of turn cycle structure on the performance of elite alpine skiers using an inertial measurement unit (IMU) in different slalom (SL) course settings. Four SL courses were set: a flat-turned (FT), a steep-turned (ST), a flat-straighter (FS) and a steep-straighter (SS). Five elite alpine skiers (21.2 ± 3.3 years, 180.2 ± 5.6 cm, 72.8 ± 6.6 kg) completed several runs at maximum speed for each SL course. A total of 77 runs were obtained. Fast total times correlate with a longer initiation (INI) time in FT, a shorter steering time out of the turn (STEOUT) in the FT and FS and a shorter total steering time (STEIN+OUT) in the FT and SS courses. The linear mixed model used for the analysis revealed that in the FT-course for each second increase in the INI time, the total time is reduced by 0.45 s, and for every one-second increase in the STEOUT and STEIN+OUT times, the total time increases by 0.48 s and 0.31 s, respectively. Thus, to enhance descent performance, the skier should lengthen the INI time and shorten the STEOUT and STEIN+OUT time. Future studies could use an IMU to detect turn phases and analyze them using the other built-in sensors.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-02-01
2024
2024-02-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/403546
https://dx.doi.org/10.3390/s22030902
url https://hdl.handle.net/2117/403546
https://dx.doi.org/10.3390/s22030902
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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