Associations of obesity and physical activity with cognition in people aged 50 and above in Shanghai.
10.3760/cma.j.issn.0254-6450.2018.03.005
- VernacularTitle:上海市50岁及以上老年人群肥胖和体力活动与认知功能的关系
- Author:
Z Z HUANG
1
;
Y C ZHANG
1
;
Y ZHENG
1
;
Y F GUO
1
;
Y RUAN
1
;
S Y SUN
1
;
Y SHI
1
;
S N GAO
2
;
J H YE
3
;
Y J YAN
4
;
K WU
5
;
R F XU
6
;
F WU
1
Author Information
1. Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China.
2. Huangpu District Center for Disease Control and Prevention, Shanghai 200011, China.
3. Hongkou District Center for Disease Control and Prevention, Shanghai 200437, China.
4. Minhang District Center for Disease Control and Prevention, Shanghai 201100, China.
5. Pudong District Center for Disease Control and Prevention, Shanghai 200136, China.
6. Qingpu District Center for Disease Control and Prevention, Shanghai 201700, China.
- Publication Type:Journal Article
- Keywords:
Cognition;
Elderly;
Obesity;
Physical activity
- MeSH:
Aged;
Body Height;
Body Mass Index;
Body Weight;
China;
Cognition/physiology*;
Cross-Sectional Studies;
Exercise;
Humans;
Middle Aged;
Obesity;
Surveys and Questionnaires;
Waist Circumference;
Waist-Hip Ratio
- From:
Chinese Journal of Epidemiology
2018;39(3):273-279
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the associations of obesity and physical activity with cognition in the elderly. Methods: A cross-sectional survey was conducted from October 2009 to June 2010 among people aged ≥50 years selected through multistage random cluster sampling in Shanghai. The subjects' body weight, body height, waist circumference and hip circumference were measured to calculate body mass index (BMI) and waist-hip ratio (WHR), and the data on self-reported physical activity level were collected through questionnaire survey. A comprehensive battery of cognitive tests was conducted to assess subjects' cognitive functions, including verbal recall, forward digit span (FDS), backward digit span (BDS), and verbal fluency (VF). General linear model was used to examine the associations of BMI, WHR and physical activity with cognition. Results: A total of 7 913 participants were included, with a median age of 60 years. Age, sex, education level, income level, BMI, WHR and physical activity level were significantly associated with cognitive scores in univariate analysis. After adjusted for age, sex, education level and income level, BMI was no longer significantly associated with cognitive scores in all cognitive functions (all P>0.01). WHR was significantly associated with VF score (P<0.01). Abdominally obese participants had lower VF score than non-abdominally obese participants (P<0.01). Physical activity level was significantly associated with all cognitive functions (P<0.01). Compared with participants with moderate physical activity level, participants with low physical activity level had lower scores in all cognitive functions (P<0.01). Conclusion: Abdominal obesity and low physical activity level were negatively associated with cognition level in the elderly, suggesting that waist circumference control and physical activity might help maintain cognition in the elderly.
