Physical activity and health in the presence of China's economic growth:Meeting the public health challenges of the aging population

Three decades of rapid economic development in China have not only benefited millions of Chinese by improving their living standards but have also dramatically increased the number of people who are part of the country's aging population. However, economic growth has not been accompanied by sufficient attention given to important public health issues, including an increase in the incidence of chronic diseases and a decline in physical activity(PA) that comes with an aging population. The rapid growth in China's older population will soon exert an impact on the nation's economy, population health status, and health behaviors, and will increase stress on its healthcare system. This review article provides a broad perspective on the impact of rapid economic development, industrialization, and urbanization on health-related behaviors, with a specific focus on PA among older adults. Specifically, the article offers an overview of the demographic context, significant public health challenges,evidence on PA and exercise interventions, and knowledge gaps and future directions for research.

The public health benefits of Tai Ji Quan——Addressing the unmet needs of aging populations in the 21st century

1.Introduction With the increase in older populations worldwide1 comes an increased health burden related to chronic diseases.2–4One of the most disabling of these is knee osteoarthritis（OA）,which occurs in millions of older adults who subsequently live with joint pain and stiffness,leading to chronic disability and a diminished quality of life.5,6 Epidemiological evidence shows a higher prevalence of OA in older adults living in urban and

Physical activity and prevention of chronic disease in Chinese youth:A public health approach

Globally,physical activity(PA)has been recognized as one of the important lifestyle behaviors that brings major health benefits to,and affects the healthy growth of,school-aged children and adolescents.

Addressing the public health concerns of physical inactivity, low levels of fitness, and unhealthy weight among Chinese school-aged children

In China,sports and physical activity(PA)have traditionally been an integral part of school curricula to promote fitness and enhance healthy growth among children and adolescents.Three decades of economic reforms,however,have brought major changes in social,economic,and built environments that have resulted in concerns about the general health of the Chinese population due to accumulating epidemiologic evidence of increased levels of physical inactivity,high rates of obesity,and unhealthy diet.With the emergence of a progressively obesogenic environment,lack of safe and acces-

Physical activity, aging, and health in China: Addressing public health needs in the presence of continued economic growth and urbanization

The significant increase in the number of older adults in China,coupled with continuing industrialization and urbanization,has profound social and economic ramifications,including the evolution of major challenges to public health,elder care services,policy-making,and the nation’s healthcare system.While the unprecedented changes in political and economic structures have obviously increased China’s productivity and revenues,what is less well understood is how they

Improving BRICS’s public health and wellness through physical activity

In 2009,Professor Steven Blair predicted that physical inactivity would be the greatest public health issue of the 21st century.~1 A public health problem is one that affects the health,function,and well-being of a large number of people.

Tai Ji Quan:From traditional applications to contemporary practice

A warm welcome to this special issue of the Journal of Sport and Health Science,which is devoted to Tai Ji Quan and its wide range of applications. Tai Ji Quan is a unique aspect of Chinese culture,with a history extending back several centuries.1 Although it evolved from the martial art of Wushu,2 training and practice of Tai Ji Quan involve synchronized execution of bodily movements with deliberate intention and rhythmic breathing.For this reason,it has often been viewed as a healing art for nurturing the human body,warding off diseases,and enhancing overall health and well-being.The unique combination of these martial and healing dimensions has made Tai Ji Quan a distinctive exercise modality that attracts practitioners of all ages from all walks of life.

Coronavirus disease(COVID-19):The need to maintain regular physical activity while taking precautions

The on-going Coronavirus disease(COVID-19)outbreak in China has become the world's leading health headline and is causing major panic and public concerns.On January 30,2020,the World Health Organization(WHO)declared that the new coronavirus outbreak is a public health emergency of international concern.1 The virus has already had a direct impact on more than 10 million people in the city of Wuhan and has reached other parts of China as well,posing a health threat of unknown magnitude globally.As of February 8,2020,WHO reported 34,886 confirmed cases of COVID-19 globally,with 34,589 of them occurring in China(including 6101 severe cases and 723 deaths).A total of 288 other confirmed cases(with 1 death)have been reported in 24 countries,including Japan,Australia,Germany,and United States.2 However,these daily estimates are expected to rise even higher as reports from health authorities in China3 are gathered and near real-time updates of the Johns Hopkins virus dashboard are made 4 The outbreak has caused governments in various countries to take swift and protective measures.In China,these included putting cities on lockdown,5 implementing travel wamings/bans and cancellations,6 extending national holidays,and closing schools and postponing classes7.

Returning Chinese school-aged children and adolescents to physical activity in the wake of COVID-19: Actions and precautions

The Coronavirus disease-2019(COVID-19)pandemic is still spreading globally.As of April 7,2020,it has reached 184 countries and territories,infecting more than 1.4 million people worldwide with more than 82,000 deaths.1 The situation in China has improved significantly since December 31,2019.2 Owing to the unprecedented and effective quarantine measures taken across the country,Chinese health authorities reported on March 18,2020,that for the first time since the outbreak no new locally transmitted COVID-19 cases had been reported,marking a major turning point in the fight against the highly contagious coronavirus.3 Since then,the daily number of new cases in the mainland of China has dropped to double digits,with new infections primarily originating from incoming air passengers from outside China.

Physical activity during the coronavirus disease-2019 global pandemic

Nearly a century ago,the 1918 influenza pandemic was regarded as the most severe pandemic in recent history.1 The virus,known as H1N1,infected 500 million persons worldwide and claimed an estimated 50 million lives.The pandemic lasted nearly 2 years with sporadic activity characterized by 3 waves of occurrence.Nearly 100 years later,in January 2020,we found ourselves in the midst of another global pandemic,the novel coronavirus(coronavirus disease-2019,COVID-19).2 Within 5 months of outbreak,COVID-19 has infected over 6 million persons worldwide with over 380,000 confirmed deaths.3 While nearly every region of the world has experienced the virus,European and North and South American countries are among the most impacted countries with the greatest burden of COVID-19 in terms of the incidence and mortality.4 Among the most vulnerable populations,older adults and persons with serious underlying medical conditions or compromised immune systems are at greatest risk of contracting COVID-19.5 In addition,people living in densely populated areas or rural areas with poor access to health care,living in congregate housing and multi-generational households,and those who work in the service industry also have a high risk for contracting COVID-19.6 This includes many racial and ethnic minorities,immigrants,and refugees.

Novel method for the recognition of Jinnan cattle action using bottleneck attention enhanced two-stream neural network

Effective and accurate action recognition is essential to the intelligent breeding of the Jinnan cattle.However,there are still several challenges in the current Jinnan cattle action recognition.Traditional methods are based on manual characteristics and low recognition accuracy.This study is aimed at the efficient and accurate development of Jinnan cattle action recognition methods to overcome existing problems and support intelligent breeding.The acquired data from the previous methods contain a lot of noise,which will cause individual cattle to have excessive behaviors due to unsuitability.Concerning the high labor costs,low efficiency,and low model accuracy of the above approaches,this study developed a bottleneck attention-enhanced two-stream(BATS)Jinnan cattle action recognition method.It primarily comprises a Spatial Stream Subnetwork,a Temporal Stream Subnetwork,and a Bottleneck Attention Module.It can capture the spatial-channel dependencies in RGB and optical flow two branches respectively,so as to extract richer and more robust features.Finally,the decision of the two branches can be fused to gain improved cattle action recognition performance.Compared with the traditional methods,the model proposed in this study has achieved state-of-the-art recognition performance,and the accuracy of motion recognition was 96.53%,which was 4.60%higher than other models.This method significantly improves the efficiency and accuracy of behavior recognition and provides an important research foundation and direction for the development of higher-level behavior analysis models in the future development of smart animal husbandry.