{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:47:24Z","timestamp":1760402844129,"version":"build-2065373602"},"reference-count":30,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2020,1,8]],"date-time":"2020-01-08T00:00:00Z","timestamp":1578441600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001808","name":"Kommission f\u00fcr Technologie und Innovation","doi-asserted-by":"publisher","award":["17664.1 PFNM-NM"],"award-info":[{"award-number":["17664.1 PFNM-NM"]}],"id":[{"id":"10.13039\/501100001808","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This research aimed to determine whether: (1) shoe-worn magnetic and inertial sensors can be used to detect hurdle clearance and identify the leading leg in 400-m hurdles, and (2) to provide an analysis of the hurdlers\u2019 spatiotemporal parameters in the intervals defined by the hurdles\u2019 position. The data set is composed of MIMU recordings of 15 athletes in a competitive environment. The results show that the method based on the duration of the flight phase was able to detect hurdle clearance and identify the leading leg with 100% accuracy. Moreover, by combining the swing phase duration with the orientation of the foot, we achieved, in unipedal configuration, 100% accuracy in hurdle clearance detection, and 99.7% accuracy in the identification of the leading leg. Finally, this study provides statistical evidence that contact time significantly increases, while speed and step frequency significantly decrease with time during 400 m hurdle races.<\/jats:p>","DOI":"10.3390\/s20020354","type":"journal-article","created":{"date-parts":[[2020,1,9]],"date-time":"2020-01-09T03:07:11Z","timestamp":1578539231000},"page":"354","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Hurdle Clearance Detection and Spatiotemporal Analysis in 400 Meters Hurdles Races Using Shoe-Mounted Magnetic and Inertial Sensors"],"prefix":"10.3390","volume":"20","author":[{"given":"Mathieu","family":"Falbriard","sequence":"first","affiliation":[{"name":"Laboratory of Movement Analysis and Measurement, EPFL, 1015 Lausanne, Switzerland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3726-730X","authenticated-orcid":false,"given":"Maurice","family":"Mohr","sequence":"additional","affiliation":[{"name":"Institute of Sport Science, University of Innsbruck, 6020 Innsbruck, Austria"}]},{"given":"Kamiar","family":"Aminian","sequence":"additional","affiliation":[{"name":"Institute of Sport Science, University of Innsbruck, 6020 Innsbruck, Austria"}]}],"member":"1968","published-online":{"date-parts":[[2020,1,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.gaitpost.2019.07.123","article-title":"Quantification of the validity and reliability of sprint performance metrics computed using inertial sensors: A systematic review","volume":"73","author":"Macadam","year":"2019","journal-title":"Gait Posture"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1123","DOI":"10.1016\/j.jbiomech.2011.12.020","article-title":"Estimation of temporal parameters during sprint running using a trunk-mounted inertial measurement unit","volume":"45","author":"Bergamini","year":"2012","journal-title":"J. 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