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| 1 | Association Between Physical Activity and Physical Fitness Among Adults Aged 40 to 79 Years—Beijing,China,2020–2021显示文摘Summary What is already known about this topic?Physical fitness is well documented to be associated with physical activity among adults in the United States.In China,research on this association places a heavier emphasis on the populations of children and adolescents.What is added by this report?Physical fitness was shown to be positively associated with physical activity among adults aged 40 to 79 years in China.In populations with lower levels of physical fitness,this association was stronger.The coefficients of the log-transformed metabolic equivalent value of physical activity(logPA)in quantile regression models at the 25th,50th,75th,and 90th percentile of the physical fitness indicators were 1.14,1.04,0.89,and 0.84,respectively. | Xiaojin Yan Heming Pei Yalu Zhang Ning Kang Gong Chen Dongmin Wang | 2022 | China CDC weekly2022，4，42： | 0 |
| 2 | Changes in Sleep Duration and the Risk of Cognitive Impairment Among Older Adults Aged 65 Years and Over—China,2014–2019显示文摘Summary What is already known about this topic?Earlier studies indicated that shorter or excessive sleep duration at baseline was related to cognitive impairment.Yet few studies have been concerned with the association between sleep duration changes and cognitive performance,especially in low-and middleincome countries.What is added by this report?A prospective cohort study suggests that maintaining moderate sleep duration may lead to optimal cognitive performance.Either decreasing,increasing,or keeping a longer sleep duration is associated with the risk of cognitive impairment among Chinese elderly aged 65 years and over. | Yue Wei Heming Pei Jinlong Lin Xiaojin Yan Gong Chen | 2022 | China CDC weekly2022，4，42： | 0 |
| 3 | The Distribution and Potential Exposure Factors of Physical Activity Level Among Middle-Aged and Elderly Population—Six Communities,Beijing,China,October 2020 to January 2021显示文摘Summary What is already known about this topic?Available evidence suggested that 31%of the world’s population do not meet the minimum recommendations for physical activity.What is added by this report?The latest findings showed that physical activity level(PAL),metabolic equivalents(MET)in min/week with<4,500(low),4,500–6,000(moderate)and≥6,000(high)accounted for 45.72%,25.62%,and 28.66%of middle-aged and elderly population in Changchunyuan Community,Weixiuyuan Community,Zhongguanyuan Community,Yanbeiyuan Community,Kangzeyuan Community,and Xima Community,respectively.The moderate and high PAL was associated with a decreased risk of hypertension,cardiovascular disease,dyslipidemia,and poor sleep.What are the implications for public health practice?More attention should be given to the middle-aged population who may be at high risk of insufficient physical activity in urban environments as it is of public health significance for improving the community population health. | Heming Pei Ning Kang Fan Yang Xinming Song Gong Chen Dongmin Wang | 2022 | China CDC weekly2022，4，27： | 0 |
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