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dc.contributor.authorKaravirta, Laura
dc.contributor.authorRantalainen, Timo
dc.contributor.authorSkantz, Heidi
dc.contributor.authorLisko, Inna
dc.contributor.authorPortegijs, Erja
dc.contributor.authorRantanen, Taina
dc.date.accessioned2020-06-11T10:29:52Z
dc.date.available2020-06-11T10:29:52Z
dc.date.issued2020
dc.identifier.citationKaravirta, L., Rantalainen, T., Skantz, H., Lisko, I., Portegijs, E., & Rantanen, T. (2020). Individual scaling of accelerometry to preferred walking speed in the assessment of physical activity in older adults. <i>Journals of Gerontology Series A : Biological Sciences and Medical Sciences</i>, <i>75</i>(9), e111-e118. <a href="https://doi.org/10.1093/gerona/glaa142" target="_blank">https://doi.org/10.1093/gerona/glaa142</a>
dc.identifier.otherCONVID_35889095
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/69881
dc.description.abstractBackground Walking forms a large portion of physical activity (PA) of older adults. We assessed free-living PA using acceleration corresponding to preferred walking speed as a relative cut-point, and studied how it relates to age. We compared the relative cut-point to a common absolute cut-point of moderate-to-vigorous PA (MVPA). Methods 444 community-dwelling adults aged 75, 80 and 85 wore an accelerometer on the thigh during a PA surveillance period and a modified six-minute walking test (6MWT) at preferred speed. Each individual’s mean acceleration (g) during the 6MWT was used as a cut-point for relative PA. Acceleration corresponding to three metabolic equivalents (METs) was used as the cut-point for absolute MVPA. Results When using the acceleration of preferred walking speed as a cut-point, 62 (SD 82) minutes a week of relative PA was detected, compared to 228 (163) minutes of absolute MVPA. For 96 % of the participants, the acceleration generated by their preferred walking speed exceeded the common absolute cut-point for MVPA. Absolute MVPA was lower in the older age groups, and 6MWT speed explained 22 % of its variation (p<0.001), whereas relative PA was independent of walking speed and age. Conclusions Preferred walking speed was a significant contributor to absolute MVPA, and those who walked the slowest accumulated the least MVPA. Assessing relative PA using the intensity of preferred walking speed as a cut-point eliminated the dependency of PA on age and walking speed, and may be a feasible scaling option to evaluate relative PA among older people.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherOxford University Press; Gerontological Society of America
dc.relation.ispartofseriesJournals of Gerontology Series A : Biological Sciences and Medical Sciences
dc.rightsIn Copyright
dc.subject.otheraktiivisuusranneke
dc.subject.otherexercise intensity
dc.subject.otherphysical performance
dc.subject.otheraccelerometer
dc.subject.othercut-point
dc.titleIndividual scaling of accelerometry to preferred walking speed in the assessment of physical activity in older adults
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202006114126
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineGerontologia ja kansanterveysfi
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineGerontology and Public Healthen
dc.contributor.oppiaineBiomechanicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerangee111-e118
dc.relation.issn1079-5006
dc.relation.numberinseries9
dc.relation.volume75
dc.type.versionacceptedVersion
dc.rights.copyright© The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber693045
dc.relation.grantnumber693045
dc.relation.grantnumber328818
dc.relation.grantnumber310526
dc.relation.grantnumber321336
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/693045/EU//AGNES
dc.subject.ysomittaus
dc.subject.ysoikääntyneet
dc.subject.ysokävely
dc.subject.ysosuorituskyky
dc.subject.ysofyysinen aktiivisuus
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p4794
jyx.subject.urihttp://www.yso.fi/onto/yso/p2433
jyx.subject.urihttp://www.yso.fi/onto/yso/p3706
jyx.subject.urihttp://www.yso.fi/onto/yso/p14041
jyx.subject.urihttp://www.yso.fi/onto/yso/p23102
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1093/gerona/glaa142
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuropean Commissionen
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundinginformationThis work was supported by the European Union’s Horizon 2020 research and innovation program grant number (310526 to TaR); and the Academy of Finland (grant number 693045 to TaR, and 321336 and 328818 to TiR). The content of this publication does not reflect the official opinion of the European Union. Responsibility for the information and views expressed in the publication lies entirely with the authors.


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