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dc.contributor.authorZahid, Sarah A.
dc.contributor.authorCelik, Y.
dc.contributor.authorGodfrey, A.
dc.contributor.authorBuckley, John
dc.date.accessioned2023-06-30T11:14:35Z
dc.date.accessioned2023-07-18T12:28:58Z
dc.date.available2023-06-30T11:14:35Z
dc.date.available2023-07-18T12:28:58Z
dc.date.issued2023-06-26
dc.identifier.citationZahid SA, Celik Y, Godfrey A et al (2023) An Automated Approach to Instrumenting the Up-on-the-Toes Test(s). Biomechanics. 3(3): 278-290.en_US
dc.identifier.urihttp://hdl.handle.net/10454/19508
dc.descriptionYesen_US
dc.description.abstractNormal ankle function provides a key contribution to everyday activities, particularly step/stair ascent and descent, where many falls occur. The rising to up-on-the-toes (UTT) 30 second test (UTT-30) is used in the clinical assessment of ankle muscle strength/function and endurance and is typically assessed by an observer counting the UTT movement completed. The aims of this study are: (i) to determine whether inertial measurement units (IMUs) provide valid assessment of the UTT-30 by comparing IMU-derived metrics with those from a force-platform (FP), and (ii) to de-scribe how IMUs can be used to provide valid assessment of the movement dynamics/stability when performing a single UTT movement that is held for 5 s (UTT-stand). Twenty adults (26.2 ± 7.7 years) performed a UTT-30 and a UTT-stand on a force-platform with IMUs attached to each foot and the lumbar spine. We evaluate the agreement/association between IMU measures and measures de-termined from the FP. For UTT-30, IMU analysis of peaks in plantarflexion velocity and in FP’s centre of pressure (CoP) velocity was used to identify each repeated UTT movement and provided an objective means to discount any UTT movements that were not completed ‘fully’. UTT movements that were deemed to have not been completed ‘fully’ were those that yielded peak plantarflexion and CoP velocity values during the period of rising to up-on-the-toes that were below 1 SD of each participant’s mean peak rising velocity across their repeated UTT. The number of UTT movements detected by the IMU approach (23.5) agreed with the number determined by the FP (23.6), and each approach determined the same number of ‘fully’ completed movements (IMU, 19.9; FP, 19.7). For UTT-stand, IMU-derived movement dynamics/postural stability were moderately-to-strongly correlated with measures derived from the FP. Our findings highlight that the use of IMUs can provide valid assessment of UTT test(s).en_US
dc.language.isoenen_US
dc.publisherMDPI
dc.rights(c) 2023 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (https://creativecommons.org/licenses/by/4.0/)en_US
dc.subjectInertial measurement uniten_US
dc.subjectFeature extractionen_US
dc.subjectAnkle functionen_US
dc.subjectDynamic postural controlen_US
dc.subjectUp-on-the-toesen_US
dc.titleAn Automated Approach to Instrumenting the Up-on-the-Toes Test(s)en_US
dc.status.refereedYesen_US
dc.date.Accepted2023-06-20
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.identifier.doihttps://doi.org/10.3390/biomechanics3030024
dc.rights.licenseCC-BYen_US
dc.date.updated2023-06-30T11:14:37Z
refterms.dateFOA2023-07-18T12:29:26Z
dc.openaccess.statusopenAccessen_US


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