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dc.contributor.authorRantalainen, T.
dc.contributor.authorPirkola, H.
dc.contributor.authorKaravirta, L.
dc.contributor.authorRantanen, T.
dc.contributor.authorLinnamo, V.
dc.date.accessioned2019-10-24T10:30:54Z
dc.date.available2019-10-24T10:30:54Z
dc.date.issued2019
dc.identifier.citationRantalainen, T., Pirkola, H., Karavirta, L., Rantanen, T., & Linnamo, V. (2019). Reliability and concurrent validity of spatiotemporal stride characteristics measured with an ankle-worn sensor among older individuals. <i>Gait and Posture</i>, <i>74</i>, 33-39. <a href="https://doi.org/10.1016/j.gaitpost.2019.08.006" target="_blank">https://doi.org/10.1016/j.gaitpost.2019.08.006</a>
dc.identifier.otherCONVID_32441195
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/66026
dc.description.abstractBackground. Wearable inertial sensors have been shown to provide valid mean gait characteristics assessments, however, assessment of variability is less convincingly established. Research question. What level of concurrent validity, and session-to-session reliability does an ankle-worn inertial measurement unit (IMU)-based gait assessment with a novel angular velocity-based gait event detection algorithm have among older adults? Methods. Twenty seven (women N = 17) participants volunteered (age 74.4 (SD 4.3) years, body mass 74.5 (12.0) kg, height 165.9 (9.9) cm). Right leg stance, swing, and stride duration and stride length, and stride velocity were concurrently assessed with motion capture and with an IMU from a 3 min self-paced walk up and back a 14 m track repeated twice a week apart. Gait variability was assessed as the SD of all of the registered strides. Results. Significant difference was observed between methods for many of the mean stride characteristics and stride variability (all p < 0.05), fair to excellent agreement was observed for mean values of all of the five stride characteristics evaluated (intra-class correlation coefficient [ICC] from 0.43 to 1.00). However, poor agreement was observed for the SD of all of the evaluated stride characteristics (ICC from -0.25 to 0.00). Both methods indicated excellent session to session reliability for all of the five stride characteristics evaluated (ICC from 0.84 to 0.98, CV%RMS from 1.6% to 3.6%), whereas the variability characteristics exhibited poor to good reliability (ICC from 0.0 to 0.69, CV%RMS from 18.0% to 34.4%). Significance. Excellent concurrent validity and reliability was observed for mean spatiotemporal stride characteristics, however, gait variability exhibited poor concurrent validity and reliability. Although IMUs and the presented algorithm could be used to assess mean spatiotemporal stride characteristics among older individuals, either a more reliable gait event detection algorithm or alternative analytical approaches should be used for gait variability.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesGait and Posture
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherwearable
dc.subject.othergait
dc.subject.otheraccelerometer
dc.subject.othermotion capture
dc.subject.othervariability
dc.titleReliability and concurrent validity of spatiotemporal stride characteristics measured with an ankle-worn sensor among older individuals
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201910244590
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineGerontologia ja kansanterveysfi
dc.contributor.oppiaineBiomechanicsen
dc.contributor.oppiaineGerontology and Public Healthen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange33-39
dc.relation.issn0966-6362
dc.relation.volume74
dc.type.versionacceptedVersion
dc.rights.copyright© 2019 Elsevier B.V.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber310526
dc.relation.grantnumber693045
dc.relation.grantnumber693045
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/693045/EU//AGNES
dc.subject.ysokiihtyvyys
dc.subject.ysokävely
dc.subject.ysoikääntyneet
dc.subject.ysoliikkeentunnistus
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p23608
jyx.subject.urihttp://www.yso.fi/onto/yso/p3706
jyx.subject.urihttp://www.yso.fi/onto/yso/p2433
jyx.subject.urihttp://www.yso.fi/onto/yso/p24599
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1016/j.gaitpost.2019.08.006
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderAcademy of Finlanden
dc.relation.funderEuropean Commissionen
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundinginformationThis work was supported by the European Research Council (grant number 693045, Prof. Rantanen) and the Academy of Finland (grant number 310526, Prof. Rantanen).


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