Associations between Sedentary Duration and Cognitive Function in Older Adults: A Longitudinal Study with 2-Year Follow-Up - 10/12/24
, Zhang Yan 1
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Abstract |
Objectives |
This study aimed to investigate the association between different forms of sedentary behavior and cognitive function in Chinese community-dwelling older adults.
Design |
A longitudinal study with a 2-year follow-up.
Setting and Participants |
Data from 5356 participants at baseline and 956 participants at the follow-up of the Anhui Healthy Longevity Survey (AHLS) were analysed.
Measurements |
Cognitive function was evaluated by the Mini-Mental State Examination (MMSE), and mild cognitive impairment (MCI) was classified according to education-specific criteria. Self-report questionnaires were used to assess the sedentary behavior of the participants.
Results |
The participants who reported longer screen-watching sedentary duration had higher MMSE scores (1–2 hours: β=0.758, 95% CI: 0.450, 1.066; > 2 hours: β=1.240, 95% CI: 0.917, 1.562) and lower likelihoods of MCI (1–2 hours: OR= 0.787, 95% CI: 0.677, 0.914; >2 hours: OR=0.617, 95% CI: 0.524, 0.726). The participants who had played cards (or mahjong) sedentary had higher MMSE scores (β= 1.132, 95% CI: 0.788, 1.476) and lower likelihoods of MCI (OR=0.572, 95% CI: 0.476, 0.687). However, the participants who reported longer other forms of sedentary duration had lower MMSE scores (1–2 hours: β=−0.409, 95% CI: −0.735, −0.082; > 2 hours: β=−1.391, 95% CI: −1.696, −1.087) and higher likelihoods of MCI (1–2 hours: OR=1.271, 95% CI: 1.081, 1.496; > 2 hours: OR=1.632, 95% CI: 1.409, 1.889). No significant association was detected between sedentary duration and MCI incidence.
Conclusion |
Variations in the impact of diverse sedentary behaviors on the cognitive function were detected in Chinese older adults. However, such associations were cross-sectional and longitudinal associations were not found in the current study.
Le texte complet de cet article est disponible en PDF.Key words : Sedentary behavior, mild cognitive impairment, Alzheimer’s disease, older adults
Plan
Vol 27 - N° 8
P. 656-662 - août 2023 Retour au numéro
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