Authors
Keisuke Kubota, Takaya Abe, Takashi Nasu, Yu Shimano, Hiroo Furusawa, Toyohiro Hamaguchi, Yoshinori Kitabatake, Yayoi Amakusa
Published in
Preventive medicine reports. Volume 71. Pages 103646. Epub Sep 21, 2026.
Abstract
Community gathering places (Kayoinoba) promote social participation and may help prevent frailty among older adults. This exploratory study examined three-time-point trajectories of frailty and physical function and whether baseline multidimensional information helped distinguish favorable long-term trajectories.
This retrospective longitudinal study used municipal assessment data from Kayoinoba sites in Koshigaya City, Japan, collected at baseline (September 2016-October 2019), approximately 6 months later (March 2017-October 2020), and at the fiscal year 2022 municipal evaluation, conducted between August 2022 and November 2023. Outcome-specific samples included Kihon Checklist (KCL) total score (n = 95), Timed Up and Go (TUG) test (n = 74), one-leg standing time (OLS; n = 103), and 30 s Chair-Stand Test (CS-30; n = 100). Participants were classified into five prespecified direction-based trajectory patterns.
Outcomes showed heterogeneous longitudinal patterns. CS-30 had the highest LongGood (51.00%) and ImproveMaintain (38.00%) rates. TUG had the lowest LongGood rate (27.03%) and frequent ImproveRebound (37.84%) and ConsistentDecline (28.38%) patterns. Domain-score models showed numerically higher apparent areas under the receiver operating characteristic curve for several outcomes, but optimism-corrected estimates were attenuated.
Frailty and physical function showed heterogeneous, outcome-dependent directional patterns. Findings are descriptive and hypothesis-generating, not causal evidence of Kayoinoba effectiveness.
PMID:
42831182
Bibliographic data and abstract were imported from PubMed on 05 Oct 2026.
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