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Centre for Policy on Ageing | |
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Changes in time spent walking and the risk of incident dementia in older Japanese people
— the Ohsaki Cohort 2006 Study | | Author(s) | Yasutake Tomata, Shu Zhang, Kemmyo Sugiyama |
| Journal title | Age and Ageing, vol 46, no 5, September 2017 |
| Publisher | Oxford University Press, September 2017 |
| Pages | pp 857-860 |
| Source | https://academic.oup.com/ageing |
| Keywords | Dementia ; At risk ; Preventative medicine ; Exercise ; Walking ; Evaluation ; Japan. |
| Annotation | The impact of long-term changes in physical activity during adulthood in the context of primary prevention of dementia has not been addressed up until now. The objective of this study was to examine the relationship between changes in time spent walking after middle age and incident dementia in older Japanese individuals. The authors conducted a cohort study of 6,909 disability-free Japanese individuals aged 65 years or above who lived in Ohsaki City, Japan. In both 1994 and 2006, the individual amount of time spent walking per day was assessed using a self-reported questionnaire. Based on these three categories of exposure at the two points, participants were categorised into nine groups according to changes in time spent walking. Data on incident dementia were retrieved from the public Long-term Care Insurance (LTCI) Database, in which participants were followed up for 5.7 years between April 2007 and November 2012. The Cox model was used for estimating the multivariate-adjusted hazard ratios (HRs) of incident dementia. The 5.7-year incidence of dementia was found to be 9.2%. Compared with persons who remained in the lowest category of time spent walking, persons who remained in the highest category had a significantly lower risk of incident dementia. These results suggest that maintaining a higher level of physical activity after middle age may be a key strategy for prevention of dementia in older age. (JL). |
| Accession Number | CPA-171006210 A |
| Classmark | EA: CA3: LK2: CEA: HSA: 4C: 7DT |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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