Anying Bai1, Liyuan Tao2, Jia Huang3, Jing Tao3, Jue Liu4. 1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China. 2. Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China. 3. College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine; Fujian Key Laboratory of Rehabilitation Technology, Fujian University of Traditional Chinese Medicine, Fuzhou, China. 4. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China. jueliu@bjmu.edu.cn.
Abstract
BACKGROUND: We aimed to examine the effect of physical activity on different cognitive domains among patients with diabetes. METHODS: We used two waves of data from the Chinese Health and Retirement Longitudinal Study (CHARLS, 2013-2015), a nationally representative dataset of Chinese population aged over 45. Total physical activity scores were calculated based on the International Physical Activity Questionnaire (IPAQ). Executive function and episodic memory were used as measures of cognitive function. We conducted lagged dependent variable models to explore the association between physical activity and cognitive function in full sample as well as two different age groups (45-65, ≥65). RESULTS: 862 diabetic patients were included. We found that diabetic participants who had greater level of physical activity at baseline were associated with better episodic memory function in 2 years (p < 0.05). Moreover, physical activity was significantly associated with less decline in episodic memory in fully adjusted models, and the associations were stronger among patients aged 45-65 years (p < 0.05). No statistically significant association was found between physical activity and executive function in all age groups. CONCLUSIONS: Physical activity may prevent some of the potential decline in episodic memory in diabetic patients. Clinicians and public health departments should strengthen the promotion of physical activity and develop early screening tools among diabetic participants to prevent the progression of cognitive impairment.
BACKGROUND: We aimed to examine the effect of physical activity on different cognitive domains among patients with diabetes. METHODS: We used two waves of data from the Chinese Health and Retirement Longitudinal Study (CHARLS, 2013-2015), a nationally representative dataset of Chinese population aged over 45. Total physical activity scores were calculated based on the International Physical Activity Questionnaire (IPAQ). Executive function and episodic memory were used as measures of cognitive function. We conducted lagged dependent variable models to explore the association between physical activity and cognitive function in full sample as well as two different age groups (45-65, ≥65). RESULTS: 862 diabeticpatients were included. We found that diabeticparticipants who had greater level of physical activity at baseline were associated with better episodic memory function in 2 years (p < 0.05). Moreover, physical activity was significantly associated with less decline in episodic memory in fully adjusted models, and the associations were stronger among patients aged 45-65 years (p < 0.05). No statistically significant association was found between physical activity and executive function in all age groups. CONCLUSIONS: Physical activity may prevent some of the potential decline in episodic memory in diabeticpatients. Clinicians and public health departments should strengthen the promotion of physical activity and develop early screening tools among diabeticparticipants to prevent the progression of cognitive impairment.
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