PROTOCOL : Examining the best time of day for exercise: A systematic review and network meta‐analysis

作者：Meixuan Li, Xiuxia Li, Liujiao Cao, Rui Li, Xiaoqin Wang, Liang Yao, Peijing Yan, Yanfei Li, Xiajing Chu, Huijuan Li, Xue Han, Tianjiao Xin, Kaiyue Chen, Howard White, Kehu Yang · 发表于：Campbell Systematic Reviews · 年份：2021 · DOI：10.1002/cl2.1144 · 被引用次数：2 · 研究领域：Physical Activity and Health、Obesity, Physical Activity, Diet、Health and Lifestyle Studies

Global health is influenced by factors such as ageing population, rapid urbanisation, and increased transportation by car and plane, all of which result in unhealthy environments and behaviour. As a result, the growing prevalence of noncommunicable diseases (NCDs) and their risk factors has become a global issue (Zhang et al., 2017). According to the WHO World Health Statistics 2018 (WHO, 2018), In 2016, an estimated 41 million deaths occurred due to NCDs, accounting for 71% of the overall total of 57 million deaths. The majority of such deaths were caused by the four main NCDs, including: cardiovascular disease (17.9 million deaths; accounting for 44% of all NCD deaths); cancer (9.0 million deaths; 22%); chronic respiratory disease (3.8 million deaths; 9%); and diabetes (1.6 million deaths; 4%). There are many key risk factors of NCDs such as tobacco use, air pollution, unhealthy diet, physical inactivity and harmful use of alcohol, one of the main risk factors is physical inactivity (WHO 2018). Physical inactivity has been identified as the fourth leading risk factor for global mortality (6% of deaths globally), with an estimated 20%–30% increased risk of death compared with those who are physically active. This follows high blood pressure (13%), tobacco use (9%) and high blood glucose (6%). Overweight and obesity are responsible for 5% of global mortality (WHO, 2013). It has been shown that participation in regular physical activity reduces the risk of coronary heart disea...