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dc.contributor.authorLöppönen, Antti
dc.contributor.authorKaravirta, Laura
dc.contributor.authorPortegijs, Erja
dc.contributor.authorKoivunen, Kaisa
dc.contributor.authorRantanen, Taina
dc.contributor.authorFinni, Taija
dc.contributor.authorDelecluse, Christophe
dc.contributor.authorVan Roie, Evelien
dc.contributor.authorRantalainen, Timo
dc.date.accessioned2021-09-17T07:01:30Z
dc.date.available2021-09-17T07:01:30Z
dc.date.issued2021
dc.identifier.citationLöppönen, A., Karavirta, L., Portegijs, E., Koivunen, K., Rantanen, T., Finni, T., Delecluse, C., Van Roie, E., & Rantalainen, T. (2021). Day-to-Day Variability and Year-to-Year Reproducibility of Accelerometer-Measured Free-Living Sit-to-Stand Transitions Volume and Intensity among Community-Dwelling Older Adults. <i>Sensors</i>, <i>21</i>(18), Article 6068. <a href="https://doi.org/10.3390/s21186068" target="_blank">https://doi.org/10.3390/s21186068</a>
dc.identifier.otherCONVID_100965513
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/77813
dc.description.abstract(1) Background: The purpose of this study was to evaluate the day-to-day variability and year-to-year reproducibility of an accelerometer-based algorithm for sit-to-stand (STS) transitions in a free-living environment among community-dwelling older adults. (2) Methods: Free-living thigh-worn accelerometry was recorded for three to seven days in 86 (women n = 55) community-dwelling older adults, on two occasions separated by one year, to evaluate the long-term consistency of free-living behavior. (3) Results: Year-to-year intraclass correlation coefficients (ICC) for the number of STS transitions were 0.79 (95% confidence interval, 0.70–0.86, p < 0.001), for mean angular velocity—0.81 (95% ci, 0.72–0.87, p < 0.001), and maximal angular velocity—0.73 (95% ci, 0.61–0.82, p < 0.001), respectively. Day-to-day ICCs were 0.63–0.72 for number of STS transitions (95% ci, 0.49–0.81, p < 0.001) and for mean angular velocity—0.75–0.80 (95% ci, 0.64–0.87, p < 0.001). Minimum detectable change (MDC) was 20.1 transitions/day for volume, 9.7°/s for mean intensity, and 31.7°/s for maximal intensity. (4) Conclusions: The volume and intensity of STS transitions monitored by a thigh-worn accelerometer and a sit-to-stand transitions algorithm are reproducible from day to day and year to year. The accelerometer can be used to reliably study STS transitions in free-living environments, which could add value to identifying individuals at increased risk for functional disability.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherMDPI AG
dc.relation.ispartofseriesSensors
dc.rightsCC BY 4.0
dc.subject.othertest-retest
dc.subject.othermobility limitation
dc.subject.otherchair rise
dc.titleDay-to-Day Variability and Year-to-Year Reproducibility of Accelerometer-Measured Free-Living Sit-to-Stand Transitions Volume and Intensity among Community-Dwelling Older Adults
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202109174888
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineGerontologia ja kansanterveysfi
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineGerontologian tutkimuskeskusfi
dc.contributor.oppiaineGerontology and Public Healthen
dc.contributor.oppiaineBiomechanicsen
dc.contributor.oppiaineGerontology Research Centeren
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn1424-8220
dc.relation.numberinseries18
dc.relation.volume21
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber310526
dc.relation.grantnumber321336
dc.relation.grantnumber328818
dc.relation.grantnumber693045
dc.relation.grantnumber693045
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/693045/EU//AGNES
dc.subject.ysomittausmenetelmät
dc.subject.ysoliikuntarajoitteet
dc.subject.ysofyysinen aktiivisuus
dc.subject.ysoikääntyneet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p20083
jyx.subject.urihttp://www.yso.fi/onto/yso/p27708
jyx.subject.urihttp://www.yso.fi/onto/yso/p23102
jyx.subject.urihttp://www.yso.fi/onto/yso/p2433
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.3390/s21186068
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderEuropean Commissionen
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundinginformationThis work was financially supported by an Advanced Grant from the European Research Council (Grant 693045 to Taina Rantanen), the Academy of Finland (Grant 310526 to Taina Rantanen), the Academy Research Fellow (Academy of Finland Grant 321336 and 328818 to Timo Rantalainen) the Finnish Ministry of Education and Culture (Grant to Erja Portegijs), and the Research Foundation Flanders, Belgium (senior postdoctoral fellowship 12Z5720N to Evelien Van Roie).


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