{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T18:37:29Z","timestamp":1789843049808,"version":"4.0.1"},"reference-count":44,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2025,10,29]],"date-time":"2025-10-29T00:00:00Z","timestamp":1761696000000},"content-version":"am","delay-in-days":365,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#am"},{"start":{"date-parts":[[2024,10,29]],"date-time":"2024-10-29T00:00:00Z","timestamp":1730160000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002241","name":"Japan Science and Technology Agency","doi-asserted-by":"publisher","award":["JPMJPF2017"],"award-info":[{"award-number":["JPMJPF2017"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Geriatrics Gerontology Int"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:sec><jats:title>Aim<\/jats:title><jats:p>Preventing functional disability benefits the quality of life of older adults and mitigates the economic burden of an aging society. However, the most effective physical performance tests and optimal cut points for identifying older adults at risk of functional disability remain unclear, and Japan lacks physical function\u2010based assessment tools. We aimed to identify the physical performance tests related to functional disability and to develop a predictive test battery for it.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We included 975 older adults (mean 72.8\u2009\u00b1\u20095.2\u2009years, 55.4% women) in Kasama City, Japan. Functional disability was defined as certification of care level 2 or above based on the long\u2010term care insurance system. Cox proportional hazards analysis examined the association between physical performance tests and incident functional disability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>During a mean follow\u2010up of 8.6\u2009years (maximum 14\u2009years), 236 participants (24.2%) developed functional disability. After adjusting for covariates, higher performances in grip strength, single\u2010leg balance with eyes open (SLB), timed up\u2010and\u2010go (TUG), five\u2010repetition sit\u2010to\u2010stand (5\u2010STS), and 5\u2010m habitual walk were significantly associated with a lower risk of functional disability. In a stepwise model, SLB, TUG, and 5\u2010STS were key predictors of functional disability. Receiver operating characteristic analysis determined optimal cut points of 32.6\/32.7\u2009s for SLB, 6.5\/6.6\u2009s for TUG, and 7.8\/7.9\u2009s for 5\u2010STS. We developed a predictive battery combining these cut points (area under the curve\u2009=\u20090.78).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The developed battery of physical performance tests predicts future functional disability and is useful for screening older adults at high risk. <jats:bold>Geriatr Gerontol Int 2024; 24: 1343\u20131349<\/jats:bold>.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ggi.15008","type":"journal-article","created":{"date-parts":[[2024,10,29]],"date-time":"2024-10-29T09:35:28Z","timestamp":1730194528000},"page":"1343-1349","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Developing a battery of physical performance tests to predict functional disability in <scp>Japanese<\/scp> older adults: A longitudinal study from the <scp>Kasama<\/scp> study"],"prefix":"10.1111","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9994-9325","authenticated-orcid":false,"given":"Namhoon","family":"Lim","sequence":"first","affiliation":[{"name":"Doctoral Program in Physical Education, Health and Sport Science, Graduate School of Comprehensive Human Sciences University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2807-4637","authenticated-orcid":false,"given":"Kenji","family":"Tsunoda","sequence":"additional","affiliation":[{"name":"Faculty of Social Welfare Yamaguchi Prefectural University  Yamaguchi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4090-2802","authenticated-orcid":false,"given":"Koki","family":"Nagata","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Prevention, Center for Clinical Sciences National Center for Global Health and Medicine  Tokyo Japan"},{"name":"R&amp;D Center for Tailor\u2010Made QOL University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2552-3882","authenticated-orcid":false,"given":"Yujiro","family":"Asano","sequence":"additional","affiliation":[{"name":"Doctoral Program in Physical Education, Health and Sport Science, Graduate School of Comprehensive Human Sciences University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaehoon","family":"Seol","sequence":"additional","affiliation":[{"name":"Institute of Health and Sport Sciences University of Tsukuba  Ibaraki Japan"},{"name":"Department of Frailty Research, Center for Gerontology and Social Science National Center for Geriatrics and Gerontology  Obu Japan"},{"name":"International Institute for Integrative Sleep Medicine (IIIS) University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Jindo","sequence":"additional","affiliation":[{"name":"Division of Art, Music, and Physical Education Osaka Kyoiku University  Osaka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8408-6619","authenticated-orcid":false,"given":"Taishi","family":"Tsuji","sequence":"additional","affiliation":[{"name":"Institute of Health and Sport Sciences University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohiro","family":"Okura","sequence":"additional","affiliation":[{"name":"R&amp;D Center for Tailor\u2010Made QOL University of Tsukuba  Ibaraki Japan"},{"name":"Institute of Health and Sport Sciences University of Tsukuba  Ibaraki Japan"},{"name":"International Institute for Integrative Sleep Medicine (IIIS) University of Tsukuba  Ibaraki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,29]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"Ministry of Health Labour and Welfare.Kaigo Hoken Jigyo Hokoku 2023. 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