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Research article
Zhu ying Wang
Nanjing normal university
Corresponding Author
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: This study explored the effects of physical activity and sedentary behaviour on the decline of cognitive ability among the elderly. To compensate for the limitations of self-reported physical activity, objective measures were used.
Methods: A cross-sectional survey of 308 aged people mean 68.66±5.377 years, in Nanjing, China, was conducted. Physical activity was measured using the ActiGraph GT3X+, and cognitive function was measured using the Montreal Cognitive Assessment.
Results: The overall participant model, adjusted for age, BMI, education, and monthly average income, found that light physical activity (β=0.006, p<0.01), moderate-vigorous physical activity (β=0.068, p<0.001), and total physical activity (β=0.006, p<0.01) had a significant linear relationship with cognitive ability, while sedentary time did not (β=-0.020, p＞0.05). Further, light physical activity only affects the cognitive ability of elderly females (β=0.006, p<0.05). There was an inverted ‘U’ association between moderate-vigorous physical activity and cognitive ability. The association models found that moderate-vigorous physical activity in the 22.13 min·day–1～38.79 min·day–1 range affected cognitive ability most beneficially, with the highest beta coefficient among all groups (β=0.091, p<0.05).
Conclusions: While physical activity can significantly improve cognitive ability among the elderly, sedentary behaviour is associated with decreased cognitive function across genders.
Keywords
accelerometer, elderly population, physical activity, cognitive ability
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CURRENT STATUS: Published
View the published article at BMC Geriatrics.
Version 4
Posted 19 Mar, 2020
No community comments so far
Submission checks complete
On 17 Mar, 2020
Editorial decision: Accept
On 17 Mar, 2020
No comments provided
Submission checks complete
On 10 Mar, 2020
Editorial decision: Minor revision
On 10 Mar, 2020
No comments provided
Editorial decision: Minor revision
On 05 Mar, 2020
Reviewer #1 agreed
On 03 Mar, 2020
Review #1 received
Received 03 Mar, 2020
Reviewers invited
Invitations sent on 28 Feb, 2020
Editor assigned
On 10 Feb, 2020
Submission checks complete
On 09 Feb, 2020
Editor invited
On 09 Feb, 2020
No comments provided
Review #2 received
Received 30 Jan, 2020
Editorial decision: Major revision
On 30 Jan, 2020
Reviewer #2 agreed
On 22 Jan, 2020
Reviewer #1 agreed
On 19 Jan, 2020
Review #1 received
Received 19 Jan, 2020
Reviewers invited
Invitations sent on 18 Jan, 2020
Editor assigned
On 19 Dec, 2019
Submission checks complete
On 18 Dec, 2019
Editor invited
On 18 Dec, 2019
First submitted
On 17 Dec, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Geriatrics & Gerontology
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A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
See the published version of this preprint at BMC Geriatrics.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Zhu ying Wang
Nanjing normal university
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at BMC Geriatrics.
Version 4
Posted 19 Mar, 2020
No community comments so far
Submission checks complete
On 17 Mar, 2020
Editorial decision: Accept
On 17 Mar, 2020
No comments provided
Submission checks complete
On 10 Mar, 2020
Editorial decision: Minor revision
On 10 Mar, 2020
No comments provided
Editorial decision: Minor revision
On 05 Mar, 2020
Reviewer #1 agreed
On 03 Mar, 2020
Review #1 received
Received 03 Mar, 2020
Reviewers invited
Invitations sent on 28 Feb, 2020
Editor assigned
On 10 Feb, 2020
Submission checks complete
On 09 Feb, 2020
Editor invited
On 09 Feb, 2020
No comments provided
Review #2 received
Received 30 Jan, 2020
Editorial decision: Major revision
On 30 Jan, 2020
Reviewer #2 agreed
On 22 Jan, 2020
Reviewer #1 agreed
On 19 Jan, 2020
Review #1 received
Received 19 Jan, 2020
Reviewers invited
Invitations sent on 18 Jan, 2020
Editor assigned
On 19 Dec, 2019
Submission checks complete
On 18 Dec, 2019
Editor invited
On 18 Dec, 2019
First submitted
On 17 Dec, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Geriatrics & Gerontology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at BMC Geriatrics.
Background: This study explored the effects of physical activity and sedentary behaviour on the decline of cognitive ability among the elderly. To compensate for the limitations of self-reported physical activity, objective measures were used.
Methods: A cross-sectional survey of 308 aged people mean 68.66±5.377 years, in Nanjing, China, was conducted. Physical activity was measured using the ActiGraph GT3X+, and cognitive function was measured using the Montreal Cognitive Assessment.
Results: The overall participant model, adjusted for age, BMI, education, and monthly average income, found that light physical activity (β=0.006, p<0.01), moderate-vigorous physical activity (β=0.068, p<0.001), and total physical activity (β=0.006, p<0.01) had a significant linear relationship with cognitive ability, while sedentary time did not (β=-0.020, p＞0.05). Further, light physical activity only affects the cognitive ability of elderly females (β=0.006, p<0.05). There was an inverted ‘U’ association between moderate-vigorous physical activity and cognitive ability. The association models found that moderate-vigorous physical activity in the 22.13 min·day–1～38.79 min·day–1 range affected cognitive ability most beneficially, with the highest beta coefficient among all groups (β=0.091, p<0.05).
Conclusions: While physical activity can significantly improve cognitive ability among the elderly, sedentary behaviour is associated with decreased cognitive function across genders.
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