The Relationship between Chronotype, Physical Activity and the Estimated Risk of Dementia in Community-Dwelling Older Adults

Ngeemasara Thapa, Boram Kim, Ja-Gyeong Yang, Hye-Jin Park, Minwoo Jang, Ha-Eun Son, Gwon-Min Kim and Hyuntae Park
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Ngeemasara Thapa: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Boram Kim: Department of Neurology, Dong-A University Hospital, Busan 49201, Korea
Ja-Gyeong Yang: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Hye-Jin Park: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Minwoo Jang: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Ha-Eun Son: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Gwon-Min Kim: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea
Hyuntae Park: Department of Healthcare and Science, Dong-A University, Busan 49315, Korea

IJERPH, 2020, vol. 17, issue 10, 1-10

Abstract: Our study examined the association between chronotype, daily physical activity, and the estimated risk of dementia in 170 community-dwelling older adults. Chronotype was assessed with the Horne–Östberg Morningness–Eveningness Questionnaire (MEQ). Daily physical activity (of over 3 METs) was measured with a tri-axial accelerometer. The Korean version of the Mini-Mental State Examination (K-MMSE) was used to measure the estimated risk of dementia. The evening chronotype, low daily physical activity, and dementia were positively associated with each other. The participants with low physical activity alongside evening preference had 3.05 to 3.67 times higher estimated risk of developing dementia, and participants with low physical activity and morning preference had 1.95 to 2.26 times higher estimated risk than those with high physical activity and morning preference. Our study design does not infer causation. Nevertheless, our findings suggest that chronotype and daily physical activity are predictors of the risk of having dementia in older adults aged 70 years and above.

Keywords: chronotype; dementia; ageing; depression; physical activity; tri-axial accelerometer (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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