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Accelerometer-measured daily steps and subjective cognitive ability in older adults: A two-year follow-up study

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cris.lastimport.scopus2026-03-01T16:01:51Z
dc.creatorChen, Shang-Ti
dc.creatorStevinson, Clare
dc.creatorTian, Tian
dc.creatorChen, Li-Jung
dc.creatorKu, Po-Wen
dc.date2020-05
dc.date.accessioned2021-11-08T03:45:34Z
dc.date.accessioned2025-07-28T15:04:23Z
dc.date.available2021-11-08T03:45:34Z
dc.date.issued2021-11-08T03:45:34Z
dc.description.abstractThere is still a paucity of longitudinal studies examining the relationships between objectively-assessed daily steps and cognitive performance in older adults. The current study aimed to explore whether there is a dose-response relationship between accelerometer-measured daily steps and subjective cognitive decline rate after 2 years in older adults. A total of 285 community-dwelling older adults (age = 74.52 +/- 6.12 years, female = 55.4%) wore accelerometers for 7 consecutive days measuring daily steps in 2012. Subjective cognitive ability was measured using a Chinese version of the Ascertain Dementia 8-item Questionnaire (AD8). In total 274 (96.1%) participants completed the follow-up study in 2014. Multivariable negative binomial regression adjusted for confounders was undertaken. Daily steps were linearly related to a reduced decline rate in subjective cognitive ability after 2 years. When daily steps were categorized into groups ( < 3500, 3500-6999, and >= 7000 steps/day), taking approximately 3500-6999 steps/day was associated with a reduced subjective cognitive decline rate (RR = 0.57, 95% CI = 0.37-0.89) after 2 years compared with < 3500 steps/day. When accruing >= 7000 steps/day, the decline rate progressively decreased further (RR = 0.43, 95% CI = 0.23-0.82). Sensitivity analyses supported the stability of these findings. These results suggest that there is an inverse dose-response association of daily steps with subjective cognitive decline rate. Even as few as 3500-6999 steps/day was associated with a lower subjective cognitive decline rate after 2 years. Accumulating >= 7000 steps/day could provide greater protection for subjective cognitive ability.
dc.format.extent146 bytes
dc.format.mimetypetext/html
dc.identifier.doi10.1016/j.exger.2020.110874
dc.identifier.issn0531-5565
dc.identifier.urihttps://ir.ntus.edu.tw/handle/987654321/65593
dc.languageen_US
dc.publisherOXFORD, ENGLAND: PERGAMON-ELSEVIER SCIENCE
dc.relationEXPERIMENTAL GERONTOLOGY, 133
dc.subjectWalking
dc.subjectPhysical activity
dc.subjectSubjective cognitive decline
dc.subjectLongitudinal
dc.subjectAging
dc.titleAccelerometer-measured daily steps and subjective cognitive ability in older adults: A two-year follow-up study
dc.typearticle
dspace.entity.typePublication

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