Agreement between an inertial measurement unit (IMU) algorithm and a photoelectric system for analysing spatiotemporal variables during overground and treadmill running
| dc.contributor.author | Miqueleiz Erburu, Unai | |
| dc.contributor.author | Aguado Jiménez, Roberto | |
| dc.contributor.author | Lecumberri Villamediana, Pablo | |
| dc.contributor.author | Gorostiaga Ayestarán, Esteban | |
| dc.contributor.department | Ciencias de la Salud | es_ES |
| dc.contributor.department | Osasun Zientziak | eu |
| dc.date.accessioned | 2025-07-28T16:44:37Z | |
| dc.date.available | 2025-07-28T16:44:37Z | |
| dc.date.issued | 2025-05-21 | |
| dc.date.updated | 2025-07-28T16:32:22Z | |
| dc.description.abstract | The aim of this study was to assess the agreement between running stride variables measured simultaneously with an inertial sensor (MTw IMU) using a specific algorithm, and a floor-based photoelectric (Optojump; OJ) system among well-trained endurance runners, during overground and treadmill runs at speeds ranging from 9 to 21 km∙h-1. Five different filter settings (from 0_0 to 4_4) were used with the OJ to detect the contact event, based on the number of LEDs (from 1 to 5). No significant differences (p > 0.05) were found between the two devices in any of the stride variables when the 4_4 filter was implemented using the OJ. The agreement was good for contact time (CT) and flight time (FT) [r = 0.81–0.93; Typical error of the estimate (TEE%) = 3.2–7.5%], whereas for stride frequency (SF), stride length (SL) and stride time (ST) the agreement was almost perfect (r = 0.91–0.99; TEE% = 0.2–1.7%). The agreement worsened as the number of activated LEDs used to detect the contact event decreased. This suggests that the tested inertial sensor using a specific algorithm can achieve highly precise measurement of spatiotemporal parameters during both overground and treadmill running, compared to the OJ (4_4) system. | en |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Miqueleiz, U., Aguado-Jimenez, R., Lecumberri, P., Gorostiaga, E. M. (2025) Agreement between an inertial measurement unit (IMU) algorithm and a photoelectric system for analysing spatiotemporal variables during overground and treadmill running. Sports Biomechanics, 1-19. https://doi.org/10.1080/14763141.2025.2502750. | |
| dc.identifier.doi | 10.1080/14763141.2025.2502750 | |
| dc.identifier.issn | 1476-3141 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/54483 | |
| dc.language.iso | eng | |
| dc.publisher | Taylor & Francis | |
| dc.relation.ispartof | Sports Biomechanics 2025, 1-19 | |
| dc.relation.publisherversion | https://doi.org/10.1080/14763141.2025.2502750 | |
| dc.rights | © 2025 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License. | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Running biomechanics | en |
| dc.subject | Running surface | en |
| dc.subject | Triaxial accelerometer | en |
| dc.subject | Reference system | en |
| dc.subject | Filter setting | en |
| dc.title | Agreement between an inertial measurement unit (IMU) algorithm and a photoelectric system for analysing spatiotemporal variables during overground and treadmill running | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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