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dc.contributor.authorKaravirta, Laura
dc.contributor.authorLeppä, Heidi
dc.contributor.authorRantalainen, Timo
dc.contributor.authorEronen, Johanna
dc.contributor.authorPortegijs, Erja
dc.contributor.authorRantanen, Taina
dc.date.accessioned2021-10-04T12:05:15Z
dc.date.available2021-10-04T12:05:15Z
dc.date.issued2021
dc.identifier.citationKaravirta, L., Leppä, H., Rantalainen, T., Eronen, J., Portegijs, E., & Rantanen, T. (2021). Physical activity scaled to preferred walking speed as a predictor of walking difficulty in older adults : a 2-year follow-up. <i>Journals of Gerontology Series A : Biological Sciences and Medical Sciences</i>, <i>Advance Article</i>. <a href="https://doi.org/10.1093/gerona/glab277" target="_blank">https://doi.org/10.1093/gerona/glab277</a>
dc.identifier.otherCONVID_101313172
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/78016
dc.description.abstractBackground The usual accelerometry-based measures of physical activity (PA) are dependent on physical performance. We investigated the associations between PA relative to walking performance and the prevalence and incidence of early and advanced walking difficulties compared to generally used measures of PA. Methods Perceived walking difficulty was evaluated in 994 community-dwelling participants at baseline (age 75, 80 or 85 years) and two years later over two kilometers (early difficulty) and 500 meters (advanced difficulty). We used a thigh-mounted accelerometer to assess moderate-to-vigorous PA, daily mean acceleration and relative PA as movement beyond the intensity of preferred walking speed in a 6-minute walking test (PArel). Self-reported PA was assessed using questionnaires. Results The prevalence and incidence were 36.2 % and 18.9 % for early, and 22.4 % and 14.9 % for advanced walking difficulty, respectively. PArel was lower in participants with prevalent (mean 42 (SD 45) vs. 69 (91) mins/week, p<0.001) but not incident early walking difficulty (53 (75) vs. 72 (96) mins/week, p=0.15) compared to those without difficulty. The associations between absolute measures of PA and incident walking difficulty were attenuated when adjusted for preferred walking speed. Conclusions The variation in habitual PA may not explain the differences in the development of new walking difficulty. Differences in physical performance explain a meaningful part of the association of PA with incident walking difficulty. Scaling of accelerometry to preferred walking speed demonstrated independence on physical performance and warrants future study as a promising indicator of PA in observational studies among older adults.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherOxford University Press (OUP)
dc.relation.ispartofseriesJournals of Gerontology Series A : Biological Sciences and Medical Sciences
dc.rightsCC BY 4.0
dc.subject.otherdisablement
dc.subject.othermobility limitation
dc.subject.otherexercise intensity
dc.subject.otherphysical performance
dc.subject.otheraccelerometer
dc.subject.othercut-point
dc.titlePhysical activity scaled to preferred walking speed as a predictor of walking difficulty in older adults : a 2-year follow-up
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202110045070
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn1079-5006
dc.relation.volumeAdvance Article
dc.type.versionacceptedVersion
dc.rights.copyright© The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber321336
dc.relation.grantnumber328818
dc.relation.grantnumber693045
dc.relation.grantnumber693045
dc.relation.grantnumber310526
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/693045/EU//AGNES
dc.subject.ysokävely
dc.subject.ysoliikuntarajoitteet
dc.subject.ysofyysinen aktiivisuus
dc.subject.ysoaskelmittarit
dc.subject.ysoennusteet
dc.subject.ysoikääntyneet
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p3706
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/p23404
jyx.subject.urihttp://www.yso.fi/onto/yso/p3297
jyx.subject.urihttp://www.yso.fi/onto/yso/p2433
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1093/gerona/glab277
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis work was supported by the European Research Council (grant number ERC AdvG 693045 to TaR); the Academy of Finland (grant number 310526 to TaR, and 321336, 328818 to TiR); and the Finnish Ministry of Education and Culture (to EP).


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