Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/33918 https://doi.org/doi.org/10.3390/s22197186 |
Resumo: | In this study, we aimed to assess the countermovement jump (CMJ) using a developed instrument encompassing an off-the-shelf Inertial Measurement Unit (IMU) in order to analyze performance during the contraction phase, as well as to determine the jump height and the modified reactive strength index (RSImod), using force plate (FP) data as reference. Eight athletes (six males and two females) performed CMJs with the IMU placed on their fifth lumbar vertebra. Accuracy was measured through mean error (standard deviation), correlation, and comparison tests. The results indicated high accuracy, high correlation (r), and no statistical differences between the IMU and the FP for contraction time (r = 0.902; < 0.001), negative impulse phase time (r = 0.773; < 0.001), flight time (r = 0.737; < 0.001), jump time (r = 0.708; < 0.001), RSImod (r = 0.725; < 0.001), nor minimum force (r = 0.758; < 0.001). However, the values related to the positive impulse phase did not have the expected accuracy, as we used different devices and positions. Our results demonstrated that our developed instrument could be utilized to identify the contraction phase, jump height, RSImod, and minimum force in the negative impulse phase with high accuracy, obtaining a signal similar to that of an FP. This information can help coaches and athletes with training monitoring and control, as the device has simpler applicability making it more systematic. |
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Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field AthletesIMUCMJHigh-level athletescontraction phasemodified reactive strength indexIn this study, we aimed to assess the countermovement jump (CMJ) using a developed instrument encompassing an off-the-shelf Inertial Measurement Unit (IMU) in order to analyze performance during the contraction phase, as well as to determine the jump height and the modified reactive strength index (RSImod), using force plate (FP) data as reference. Eight athletes (six males and two females) performed CMJs with the IMU placed on their fifth lumbar vertebra. Accuracy was measured through mean error (standard deviation), correlation, and comparison tests. The results indicated high accuracy, high correlation (r), and no statistical differences between the IMU and the FP for contraction time (r = 0.902; < 0.001), negative impulse phase time (r = 0.773; < 0.001), flight time (r = 0.737; < 0.001), jump time (r = 0.708; < 0.001), RSImod (r = 0.725; < 0.001), nor minimum force (r = 0.758; < 0.001). However, the values related to the positive impulse phase did not have the expected accuracy, as we used different devices and positions. Our results demonstrated that our developed instrument could be utilized to identify the contraction phase, jump height, RSImod, and minimum force in the negative impulse phase with high accuracy, obtaining a signal similar to that of an FP. This information can help coaches and athletes with training monitoring and control, as the device has simpler applicability making it more systematic.Sensors2023-02-07T11:21:50Z2023-02-072022-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/33918http://hdl.handle.net/10174/33918https://doi.org/doi.org/10.3390/s22197186porhttps://www.mdpi.com/1424-8220/22/19/7186ndndnd251Oliveira, PauloMarco, BrancoFernandes, Orlandoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:36:13Zoai:dspace.uevora.pt:10174/33918Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:22:42.062195Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
title |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
spellingShingle |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes Oliveira, Paulo IMU CMJ High-level athletes contraction phase modified reactive strength index |
title_short |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
title_full |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
title_fullStr |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
title_full_unstemmed |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
title_sort |
Accuracy of Inertial Measurement Units When Applied to the Countermovement Jump of Track and Field Athletes |
author |
Oliveira, Paulo |
author_facet |
Oliveira, Paulo Marco, Branco Fernandes, Orlando |
author_role |
author |
author2 |
Marco, Branco Fernandes, Orlando |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Oliveira, Paulo Marco, Branco Fernandes, Orlando |
dc.subject.por.fl_str_mv |
IMU CMJ High-level athletes contraction phase modified reactive strength index |
topic |
IMU CMJ High-level athletes contraction phase modified reactive strength index |
description |
In this study, we aimed to assess the countermovement jump (CMJ) using a developed instrument encompassing an off-the-shelf Inertial Measurement Unit (IMU) in order to analyze performance during the contraction phase, as well as to determine the jump height and the modified reactive strength index (RSImod), using force plate (FP) data as reference. Eight athletes (six males and two females) performed CMJs with the IMU placed on their fifth lumbar vertebra. Accuracy was measured through mean error (standard deviation), correlation, and comparison tests. The results indicated high accuracy, high correlation (r), and no statistical differences between the IMU and the FP for contraction time (r = 0.902; < 0.001), negative impulse phase time (r = 0.773; < 0.001), flight time (r = 0.737; < 0.001), jump time (r = 0.708; < 0.001), RSImod (r = 0.725; < 0.001), nor minimum force (r = 0.758; < 0.001). However, the values related to the positive impulse phase did not have the expected accuracy, as we used different devices and positions. Our results demonstrated that our developed instrument could be utilized to identify the contraction phase, jump height, RSImod, and minimum force in the negative impulse phase with high accuracy, obtaining a signal similar to that of an FP. This information can help coaches and athletes with training monitoring and control, as the device has simpler applicability making it more systematic. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-01T00:00:00Z 2023-02-07T11:21:50Z 2023-02-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/33918 http://hdl.handle.net/10174/33918 https://doi.org/doi.org/10.3390/s22197186 |
url |
http://hdl.handle.net/10174/33918 https://doi.org/doi.org/10.3390/s22197186 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://www.mdpi.com/1424-8220/22/19/7186 nd nd nd 251 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Sensors |
publisher.none.fl_str_mv |
Sensors |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136709024153600 |