In this context, we believe that the sun sports research now focuses on the meaning and value of sports sunshine, sunshine sports meaning and identity, how to develop the Sunshine Sports and other issues. These studie...In this context, we believe that the sun sports research now focuses on the meaning and value of sports sunshine, sunshine sports meaning and identity, how to develop the Sunshine Sports and other issues. These studies contributed to the development of sports sunshine, but there is also a lack of rigorous logical theory discussed, and the lack of institutional mechanisms for research, such as lack of a single research methods. Strengthening sunshine sports promotion model, the development of long-term mechanism research, both theoretical study sports sunshine depth development needs, but also a necessary requirement for the development of Sunshine Sports. In order to effectively promote the College “sunshine sports” to carry out and improve the physical health of college students, the use of literature, interviews, statistics and other research methods, sports curriculum University under the “sunshine sports” Perspectives issues the study. Sunshine Sports is a strong push forward by the Chinese government, the students physical health of government intervention measures. Activities three years, in all types of schools at all levels to actively carry out an hour a day exercise, teachers and students to participate in sports initiative, growing consciousness, awareness and physical exercise generally improved, exercise one hour a day has become common practice. But in some places there is still not know the place, lack of investment, lack of teachers and other issues, in order to make sustainable development the sun sports, will take in institution building, reform the examination and evaluation mechanisms, strengthening supervision and so do efforts.展开更多
In this paper, we conduct research on the current condition and countermeasures of private colleges and universities student physique health test under background of sunshine sports. For the further reform of basic ed...In this paper, we conduct research on the current condition and countermeasures of private colleges and universities student physique health test under background of sunshine sports. For the further reform of basic education thought and education idea, strengthen quality education, widening specialty caliber, and promote the reform of the teaching and scientific research combined, gradually establish a notice to strengthen quality education, integrating imparting knowledge, cultivating basic ability, improve quality, develop base solid foundation, wide knowledge and strong ability and high quality specialized talented person as has the characteristics of era of diversified and comprehensive compound talents training mode and our country higher professional sports curriculum framework should be organized by the teachers, teaching conditions, teaching management, assessment, teaching reform, the teaching effect on conception to form a multi-level, multi-factor curriculum system. With this guidance, we propose the enhanced student physique health test paradigm for the private colleges and universities student that will be innovative.展开更多
Sunshine Sports has played a significant role in promoting the teaching of Taekwondo in colleges and universities.By analyzing the connection between the Sunshine Sports concept and Taekwondo teaching,the characterist...Sunshine Sports has played a significant role in promoting the teaching of Taekwondo in colleges and universities.By analyzing the connection between the Sunshine Sports concept and Taekwondo teaching,the characteristics of the Sunshine Sports concept in Taekwondo teaching in colleges and universities are discussed.This article expounds on the influencing factors in implementing the Sunshine Sports concept and discusses how to carry out scientific and reasonable teaching methods.展开更多
Background:Sports medicine(injury and illnesses)requires distinct coding systems because the International Classification of Diseases is insuf-ficient for sports medicine coding.The Orchard Sports Injury and Illness C...Background:Sports medicine(injury and illnesses)requires distinct coding systems because the International Classification of Diseases is insuf-ficient for sports medicine coding.The Orchard Sports Injury and Illness Classification System(OSIICS)is one of two sports medicine coding systems recommended by the International Olympic Committee.Regular updates of coding systems are required.Methods:For Version 15,updates for mental health conditions in athletes,sports cardiology,concussion sub-types,infectious diseases,and skin and eye conditions were considered particularly important.Results:Recommended codes were added from a recent International Olympic Committee consensus statement on mental health conditions in athletes.Two landmark sports cardiology papers were used to update a more comprehensive list of sports cardiology codes.Rugby union protocols on head injury assessment were used to create additional concussion codes.Conclusion:It is planned that OSIICS Version 15 will be translated into multiple new languages in a timely fashion to facilitate international accessibility.The large number of recently published sport-specific and discipline-specific consensus statements on athlete surveillance warrant regular updating of OSIICS.展开更多
Various invasive and non-invasive brain modulation methods are widely used to regulate sensory,cognitive,and motor functions both within local and large brain networks.This special issue provides innovative studies to...Various invasive and non-invasive brain modulation methods are widely used to regulate sensory,cognitive,and motor functions both within local and large brain networks.This special issue provides innovative studies to optimize relevant methods and understand their neural mechanisms,paving the way for personalized neuromodulation of cognitive function.The cover of this issue uses the image of the four heavenly Kings in Chinese culture who are in charge of good weather.It compares the process of neuroregulation technology that integrates the principles of sound,light electricity or magnetism in treating the diseased brain,to the moment when these gods cast their spells to bring sunshine and peace to the human brain in the midst of lightning and thunder.展开更多
1.Legacy matters The withdrawal of Australia as hosts for the Commonwealth Games in 2026 demonstrates that large international sporting events are more than just sporting mastery,medals,and memories.Money also matters...1.Legacy matters The withdrawal of Australia as hosts for the Commonwealth Games in 2026 demonstrates that large international sporting events are more than just sporting mastery,medals,and memories.Money also matters.1 The cost of hosting a major international tournament is eye-wateringly high.Host governments need to show that the billions of dollars of investment deliver a return beyond sporting glory to justify the resources that are spent.展开更多
The surface solar radiation in most parts of the world has undergone a phenomenon known as global dimming and brightening,characterized by an initial decrease followed by an increase.As a result,the sunshine duration(...The surface solar radiation in most parts of the world has undergone a phenomenon known as global dimming and brightening,characterized by an initial decrease followed by an increase.As a result,the sunshine duration(SD)has decreased in the past 60 years.Against the backdrop of global dimming and brightening,SD has decreased to varying degrees in many regions of China.Using the observed data of SD,cloud amount(total cloud amount and low cloud amount,abbreviated as TCA and LCA),precipitation,and relative humidity(RH)from 34 meteorological stations in Chongqing during the period of 1961-2020,along with a digital elevation model(DEM)with a resolution of 90 m,this study analyzed the spatiotemporal variations and influencing factors of SD.The analysis employed methods such as linear regression,Mann-Kendall test,wavelet transformation,and DEM-based possible SD distributed model.The results showed that the annual SD in Chongqing has significantly decreased over the last 60 years,with a decreasing interannual trend rate(ITR)of 40.4 h/10a.Except for no obvious trend in spring,SD decreased significantly in summer,autumn and winter at the ITR of 21.1 h/10a,8.5 h/10a and 7.5 h/10a,respectively.An abrupt decrease in the annual SD was found in 1979.The difference before and after the abrupt decrease was 177.7 h.The difference before and after the abrupt decrease was 177.7 h.The annual SD possessed the oscillation period of 11a.The spatial heterogeneity of the mean annual SD during the last 60 years was obvious.The distribution of SD in Chongqing is high in the northeast and low in the southeast.In addition,about 73%of the total area in Chongqing showed a significant and very significant decreasing trend.The regions with significant changes are mainly concentrated in the regions with altitudes of 200~1000 m.The increasing LCA was the main cause of the decrease of the annual SD in the regions with 200-400 m altitude decreased the most and changed the most.Increasing LCA is the primary cause of the reduction in annual SD,showing a strong negative correlation coefficient of-0.7292.In Chongqing,PM2.5 concentration showed a significant decrease trend in annual,spring,autumn and winter during 2000-2020,but the significant correlation between PM2.5 concentration and SD was only in autumn and reached an extremely significant level.展开更多
Due to ever-growing soccer data collection approaches and progressing artificial intelligence(AI) methods, soccer analysis, evaluation, and decision-making have received increasing interest from not only the professio...Due to ever-growing soccer data collection approaches and progressing artificial intelligence(AI) methods, soccer analysis, evaluation, and decision-making have received increasing interest from not only the professional sports analytics realm but also the academic AI research community. AI brings gamechanging approaches for soccer analytics where soccer has been a typical benchmark for AI research. The combination has been an emerging topic. In this paper, soccer match analytics are taken as a complete observation-orientation-decision-action(OODA) loop.In addition, as in AI frameworks such as that for reinforcement learning, interacting with a virtual environment enables an evolving model. Therefore, both soccer analytics in the real world and virtual domains are discussed. With the intersection of the OODA loop and the real-virtual domains, available soccer data, including event and tracking data, and diverse orientation and decisionmaking models for both real-world and virtual soccer matches are comprehensively reviewed. Finally, some promising directions in this interdisciplinary area are pointed out. It is claimed that paradigms for both professional sports analytics and AI research could be combined. Moreover, it is quite promising to bridge the gap between the real and virtual domains for soccer match analysis and decision-making.展开更多
Sunshine duration (S) based empirical equations have been employed in this study to estimate the daily global solar radiation on a horizontal surface (G) for six meteorological stations in Burundi. Those equations inc...Sunshine duration (S) based empirical equations have been employed in this study to estimate the daily global solar radiation on a horizontal surface (G) for six meteorological stations in Burundi. Those equations include the Ångström-Prescott linear model and four amongst its derivatives, i.e. logarithmic, exponential, power and quadratic functions. Monthly mean values of daily global solar radiation and sunshine duration data for a period of 20 to 23 years, from the Geographical Institute of Burundi (IGEBU), have been used. For any of the six stations, ten single or double linear regressions have been developed from the above-said five functions, to relate in terms of monthly mean values, the daily clearness index () to each of the next two kinds of relative sunshine duration (RSD): and . In those ratios, G<sub>0</sub>, S<sub>0 </sub>and stand for the extraterrestrial daily solar radiation on a horizontal surface, the day length and the modified day length taking into account the natural site’s horizon, respectively. According to the calculated mean values of the clearness index and the RSD, each station experiences a high number of fairly clear (or partially cloudy) days. Estimated values of the dependent variable (y) in each developed linear regression, have been compared to measured values in terms of the coefficients of correlation (R) and of determination (R<sub>2</sub>), the mean bias error (MBE), the root mean square error (RMSE) and the t-statistics. Mean values of these statistical indicators have been used to rank, according to decreasing performance level, firstly the ten developed equations per station on account of the overall six stations, secondly the six stations on account of the overall ten equations. Nevertheless, the obtained values of those indicators lay in the next ranges for all the developed sixty equations:;;;, with . These results lead to assert that any of the sixty developed linear regressions (and thus equations in terms of and ), fits very adequately measured data, and should be used to estimate monthly average daily global solar radiation with sunshine duration for the relevant station. It is also found that using as RSD, is slightly more advantageous than using for estimating the monthly average daily clearness index, . Moreover, values of statistical indicators of this study match adequately data from other works on the same kinds of empirical equations.展开更多
Background:Youth emerge as an essential period in forming lifelong health and well-being.During adolescence,physical activity(PA)improves cardiovascular health,fitness levels,and the prevention of chronic illnesses,an...Background:Youth emerge as an essential period in forming lifelong health and well-being.During adolescence,physical activity(PA)improves cardiovascular health,fitness levels,and the prevention of chronic illnesses,and the positive effect is also extended to the mental realm,as PA reduces symptoms of anxiety and depression.Therefore,the current study aims to enhance our understanding of the correlation between sports participation and depressive symptoms.Additionally,it seeks to explore how demographics such as gender,age,and race can shape these connections.Methods:The research sample was established by utilising the U.S.Youth Risk Behavior Surveillance(YRBS)2019 cycle,and the eligible samples from this cycle were included in the current study.A self-administered survey evaluated sports participation,categorized as Zero,one,two,three,or more teams.This study included 16,104 participants and conducted self-reported questionnaires on gender,grade,race/ethnicity,and depressive symptoms.The study had a nationally representative population of American students in Grades 10 to 12(aged 14–17 years).Results:A total of 7843 females and 8261 males,distributed across age groups(14 years old,15 years old,16 years old,and 17 years old),with the numbers 3430,4445,4300,and 3929,respectively.Overall,there was a negative correlation between sports participation and feelings of sadness(a symptom of depression)among the subjects.This significant relationship between participating in sports teams and experiencing sadness was dose dependent.Conclusion:Youth with more team sports participation is likely to display lower depression symptoms,and differences in demographic factors such as gender,race,and age are detected.Physical activity research is responsible for attending to social equity issues and fostering inclusiveness,particularly concerning different gender and ethnic groups.展开更多
Mountainous regions have disadvantages in economic development because of harsh physical and climatic conditions.However,winter tourism activities are one of the key components for supporting economic development in t...Mountainous regions have disadvantages in economic development because of harsh physical and climatic conditions.However,winter tourism activities are one of the key components for supporting economic development in the highlands.Establishing a ski resort area supports direct and indirect employment in a region,and it stops immigration from mountainous regions to other places.This research aimed to assess the potential ski areas using a multi criteria evaluation technique in the Van region which is located in the eastern part of Türkiye.In this context,snow cover duration,sun effect,slope,slope length,elevation,population density,distance from main roads and lake visibility were used as input factors in the decision making process.Each factor was standardized using a fuzzy technique based on existing well-known ski centers in Türkiye.The weight of inputs was defined by applying a survey to the professional skiers.The most important factors were detected as transportation opportunities and snow covers whereas,the least important factors were elevation and population density.Additionally,lake visibility was very important to make a difference from other existing facilities in the region.Therefore,it was included as constraints and lake visible areas were extracted at the final stage of the research.Potential ski areas were mapped in three levels as professional,intermediate and beginner skiers.One of the suitable areas was selected as a sample projection and for the 3D simulation of the ski investment area.Potential costs and benefits were discussed.It was found that a ski tourism area investment can be amortized in 3 years in the region.展开更多
BACKGROUND Besides return to work(RTW)and return to sports(RTS),patients also prefer to return to daily activities(RTA)such as walking,sleeping,grocery shopping,and domestic work following total knee arthroplasty(TKA)...BACKGROUND Besides return to work(RTW)and return to sports(RTS),patients also prefer to return to daily activities(RTA)such as walking,sleeping,grocery shopping,and domestic work following total knee arthroplasty(TKA).However,evidence on the timelines and probability of patients’RTA is sparse.AIM To assess the percentage of patients able to RTA,RTW,and RTS after TKA,as well as the timeframe and influencing factors of this return.METHODS A retrospective cohort study with prospectively collected data was conducted at a medium-sized Dutch orthopedic hospital.Assessments of RTA,RTW,and RTS were performed at 3 mo and/or 6 mo following TKA.Investigated factors en-compassed patient characteristics,surgical characteristics,and preoperative patient-reported outcomes.RESULTS TKA patients[n=2063;66 years old(interquartile range[IQR]:7 years);47%male;28 kg/m2(IQR:4 kg/m2)]showed RTA ranging from 28%for kneeling to 94%for grocery shopping,with 20 d(IQR:27 d)spent for putting on shoes to 74 d(IQR:57 d)for kneeling.RTW rates varied from 62%for medium-impact work to 87%for low-impact work,taking 33 d(IQR:29 d)to 78 d(IQR:55 d).RTS ranged from 48%for medium-impact sports to 90%for low-impact sports,occurring within 43 d(IQR:24 d)to 90 d(IQR:60 d).One or more of the investigated factors influenced the return to each of the 14 activities examined,with R²values ranging from 0.013 to 0.127.CONCLUSION Approximately 80%of patients can RTA,RTW,and RTS within 6 mo after TKA.Return is not consistently in-fluenced by predictive factors.Results help set realistic pre-and postoperative expectations.展开更多
Participation in sports is spreading all around the world in an attempt of the community to stay active,healthy,prevent health issues and conditions and to ensure quality of life while there is life expectancy and pop...Participation in sports is spreading all around the world in an attempt of the community to stay active,healthy,prevent health issues and conditions and to ensure quality of life while there is life expectancy and population is getting more and more older.Existing protocols in rehabilitation are sometimes demanding and are addressed in athletes and people with good physical condition while population gets involved in recreational sports activities more and more.Sport injuries are very common not only in athletes but in general population as well.Pilates is a very popular type of exercise and industry around it is flourishing.Although there are indications that it could be used as an alternative in rehabilitation,research is limited in certain fields.The aim of this editorial is to motivate researchers to conduct well-designed studies in sports injuries’rehabilitation based on the Pilates method,to explore the efficacy of the method as a complementary approach and the optimal integration strategies in diverse sports rehabilitation settings.Last but not least,it is an attempt for the need of the community to establish certification on Clinical Pilates Physiotherapists based on the principles of rehabilitation.展开更多
Using literature,questionnaires,interviews,and mathematical statistics to investigate the current situation of sports public services in the Chengdu-Chongqing Twin-city Economic Circle.The results show that there are ...Using literature,questionnaires,interviews,and mathematical statistics to investigate the current situation of sports public services in the Chengdu-Chongqing Twin-city Economic Circle.The results show that there are some problems in Chengdu-Chongqing sports public services,such as big difference in the development level of supply between urban and rural areas,low supply level,low efficiency,supply mechanism defect,lack of social sports instructors,an outstanding contradiction between the quality of sports public service and residents’demand.To address the problems,government departments should accelerate the transformation of government functions,improve the relevant regulations and systems,increase the investment in sports public services,improve the quality of supply,cultivate the backbone team,integrate resources,and combine the national characteristics with regional characteristics,take into account the personalized needs of the residents,combine the sports public services with intelligence,and build the service system of“Internet+Fitness.”展开更多
On May 8th,the 6th sportsgames of the Buddhist Academy of Xizang was held in Lhasa.The sports games featured field events,track events,and fun sports events,including 100 metres,standing long jump,shot put,400m relay,...On May 8th,the 6th sportsgames of the Buddhist Academy of Xizang was held in Lhasa.The sports games featured field events,track events,and fun sports events,including 100 metres,standing long jump,shot put,400m relay,two-person running with legs tied up,and sandbag carrying-a traditional Tibetan sport.The teachers and students of the academy actively participated in and enjoyed the sports.Let's share their passion forsports together!展开更多
To improve the quality of boxing teaching in competitive sports schools,it is necessary to first analyze the strengths and weaknesses of boxing teaching in competitive sports schools,and then optimize the teaching str...To improve the quality of boxing teaching in competitive sports schools,it is necessary to first analyze the strengths and weaknesses of boxing teaching in competitive sports schools,and then optimize the teaching strategy.The strategies include innovating the boxing curriculum system and content,building learning communities inside and outside the classroom,personalizing the teaching forms and methods,using multimedia to broaden the teaching path,focusing on the integration of boxing teaching leagues,and diversifying the teaching incentives and evaluations.展开更多
“When a country prospers,sports thrive.”Building a strong sports country is an important connotation of realizing the great rejuvenation of the Chinese nation and building a moderately prosperous society in all resp...“When a country prospers,sports thrive.”Building a strong sports country is an important connotation of realizing the great rejuvenation of the Chinese nation and building a moderately prosperous society in all respects.Actively engaging in sports diplomacy from the perspective of soft power can expand a country’s international influence,promote friendly cooperation between nations,and enhance the overall image of the country.This article analyzes the concepts of soft power and sports diplomacy and explores the path of China’s sports diplomacy from four aspects:promoting diverse subjects,expanding propaganda channels,optimizing underlying design,and actively participating in competitions.展开更多
The Double Take column looks at a single topic from an African and Chinese perspective.This month we discuss whether it is worthwhile to engage in extreme sports.
Objective:This study aims to explore the effect of swimming athletes’burnout on their sports motivation in Hunan University,China.It seeks to understand how burnout influences various motivational factors,providing i...Objective:This study aims to explore the effect of swimming athletes’burnout on their sports motivation in Hunan University,China.It seeks to understand how burnout influences various motivational factors,providing insights for optimizing swimming sports courses and enhancing student participation.Method:Employing random sampling,the study surveyed 260 swimming athletes from Hunan University.The research utilized a questionnaire divided into three parts:demographic information,the Athlete Burnout Questionnaire(ABQ),and the Intrinsic Motivation Inventory(IMI).Pearson’s r correlation analysis was conducted using SPSS to examine the relationships between burnout dimensions and motivational factors.Results:The study found significant correlations between a reduced sense of accomplishment and various motivational dimensions,including“interest/enjoyment,”“perceived competence,”“perceived choice,”and particularly“perceived tension.”Physical exhaustion showed a significant correlation only with“perceived tension,”indicating a strong link between psychological stress and physical fatigue.Sports devaluation was significantly correlated with“perceived tension,”suggesting that psychological stress impacts athletes’valuation of their sport.Conclusion:The findings highlight the complex interplay between burnout and motivation in swimming athletes.Psychological stress,as indicated by“perceived tension,”emerges as a key factor influencing both the physical and emotional aspects of burnout.The study underscores the need for holistic training approaches that balance physical training with psychological well-being,personalized coaching,and supportive environments to enhance intrinsic motivation and manage stress effectively.展开更多
文摘In this context, we believe that the sun sports research now focuses on the meaning and value of sports sunshine, sunshine sports meaning and identity, how to develop the Sunshine Sports and other issues. These studies contributed to the development of sports sunshine, but there is also a lack of rigorous logical theory discussed, and the lack of institutional mechanisms for research, such as lack of a single research methods. Strengthening sunshine sports promotion model, the development of long-term mechanism research, both theoretical study sports sunshine depth development needs, but also a necessary requirement for the development of Sunshine Sports. In order to effectively promote the College “sunshine sports” to carry out and improve the physical health of college students, the use of literature, interviews, statistics and other research methods, sports curriculum University under the “sunshine sports” Perspectives issues the study. Sunshine Sports is a strong push forward by the Chinese government, the students physical health of government intervention measures. Activities three years, in all types of schools at all levels to actively carry out an hour a day exercise, teachers and students to participate in sports initiative, growing consciousness, awareness and physical exercise generally improved, exercise one hour a day has become common practice. But in some places there is still not know the place, lack of investment, lack of teachers and other issues, in order to make sustainable development the sun sports, will take in institution building, reform the examination and evaluation mechanisms, strengthening supervision and so do efforts.
文摘In this paper, we conduct research on the current condition and countermeasures of private colleges and universities student physique health test under background of sunshine sports. For the further reform of basic education thought and education idea, strengthen quality education, widening specialty caliber, and promote the reform of the teaching and scientific research combined, gradually establish a notice to strengthen quality education, integrating imparting knowledge, cultivating basic ability, improve quality, develop base solid foundation, wide knowledge and strong ability and high quality specialized talented person as has the characteristics of era of diversified and comprehensive compound talents training mode and our country higher professional sports curriculum framework should be organized by the teachers, teaching conditions, teaching management, assessment, teaching reform, the teaching effect on conception to form a multi-level, multi-factor curriculum system. With this guidance, we propose the enhanced student physique health test paradigm for the private colleges and universities student that will be innovative.
基金Scientific Research Innovation Project of China University of Political Science and Law Item(No.:21ZFY88001)The Fundamental Research Funds for the Central Universities。
文摘Sunshine Sports has played a significant role in promoting the teaching of Taekwondo in colleges and universities.By analyzing the connection between the Sunshine Sports concept and Taekwondo teaching,the characteristics of the Sunshine Sports concept in Taekwondo teaching in colleges and universities are discussed.This article expounds on the influencing factors in implementing the Sunshine Sports concept and discusses how to carry out scientific and reasonable teaching methods.
文摘Background:Sports medicine(injury and illnesses)requires distinct coding systems because the International Classification of Diseases is insuf-ficient for sports medicine coding.The Orchard Sports Injury and Illness Classification System(OSIICS)is one of two sports medicine coding systems recommended by the International Olympic Committee.Regular updates of coding systems are required.Methods:For Version 15,updates for mental health conditions in athletes,sports cardiology,concussion sub-types,infectious diseases,and skin and eye conditions were considered particularly important.Results:Recommended codes were added from a recent International Olympic Committee consensus statement on mental health conditions in athletes.Two landmark sports cardiology papers were used to update a more comprehensive list of sports cardiology codes.Rugby union protocols on head injury assessment were used to create additional concussion codes.Conclusion:It is planned that OSIICS Version 15 will be translated into multiple new languages in a timely fashion to facilitate international accessibility.The large number of recently published sport-specific and discipline-specific consensus statements on athlete surveillance warrant regular updating of OSIICS.
文摘Various invasive and non-invasive brain modulation methods are widely used to regulate sensory,cognitive,and motor functions both within local and large brain networks.This special issue provides innovative studies to optimize relevant methods and understand their neural mechanisms,paving the way for personalized neuromodulation of cognitive function.The cover of this issue uses the image of the four heavenly Kings in Chinese culture who are in charge of good weather.It compares the process of neuroregulation technology that integrates the principles of sound,light electricity or magnetism in treating the diseased brain,to the moment when these gods cast their spells to bring sunshine and peace to the human brain in the midst of lightning and thunder.
文摘1.Legacy matters The withdrawal of Australia as hosts for the Commonwealth Games in 2026 demonstrates that large international sporting events are more than just sporting mastery,medals,and memories.Money also matters.1 The cost of hosting a major international tournament is eye-wateringly high.Host governments need to show that the billions of dollars of investment deliver a return beyond sporting glory to justify the resources that are spent.
基金the National Key R&D Program(Grant No.2019YFE0115200)Natural Science Foundation of China(Grants No.42071217).
文摘The surface solar radiation in most parts of the world has undergone a phenomenon known as global dimming and brightening,characterized by an initial decrease followed by an increase.As a result,the sunshine duration(SD)has decreased in the past 60 years.Against the backdrop of global dimming and brightening,SD has decreased to varying degrees in many regions of China.Using the observed data of SD,cloud amount(total cloud amount and low cloud amount,abbreviated as TCA and LCA),precipitation,and relative humidity(RH)from 34 meteorological stations in Chongqing during the period of 1961-2020,along with a digital elevation model(DEM)with a resolution of 90 m,this study analyzed the spatiotemporal variations and influencing factors of SD.The analysis employed methods such as linear regression,Mann-Kendall test,wavelet transformation,and DEM-based possible SD distributed model.The results showed that the annual SD in Chongqing has significantly decreased over the last 60 years,with a decreasing interannual trend rate(ITR)of 40.4 h/10a.Except for no obvious trend in spring,SD decreased significantly in summer,autumn and winter at the ITR of 21.1 h/10a,8.5 h/10a and 7.5 h/10a,respectively.An abrupt decrease in the annual SD was found in 1979.The difference before and after the abrupt decrease was 177.7 h.The difference before and after the abrupt decrease was 177.7 h.The annual SD possessed the oscillation period of 11a.The spatial heterogeneity of the mean annual SD during the last 60 years was obvious.The distribution of SD in Chongqing is high in the northeast and low in the southeast.In addition,about 73%of the total area in Chongqing showed a significant and very significant decreasing trend.The regions with significant changes are mainly concentrated in the regions with altitudes of 200~1000 m.The increasing LCA was the main cause of the decrease of the annual SD in the regions with 200-400 m altitude decreased the most and changed the most.Increasing LCA is the primary cause of the reduction in annual SD,showing a strong negative correlation coefficient of-0.7292.In Chongqing,PM2.5 concentration showed a significant decrease trend in annual,spring,autumn and winter during 2000-2020,but the significant correlation between PM2.5 concentration and SD was only in autumn and reached an extremely significant level.
基金supported by the National Key Research,Development Program of China (2020AAA0103404)the Beijing Nova Program (20220484077)the National Natural Science Foundation of China (62073323)。
文摘Due to ever-growing soccer data collection approaches and progressing artificial intelligence(AI) methods, soccer analysis, evaluation, and decision-making have received increasing interest from not only the professional sports analytics realm but also the academic AI research community. AI brings gamechanging approaches for soccer analytics where soccer has been a typical benchmark for AI research. The combination has been an emerging topic. In this paper, soccer match analytics are taken as a complete observation-orientation-decision-action(OODA) loop.In addition, as in AI frameworks such as that for reinforcement learning, interacting with a virtual environment enables an evolving model. Therefore, both soccer analytics in the real world and virtual domains are discussed. With the intersection of the OODA loop and the real-virtual domains, available soccer data, including event and tracking data, and diverse orientation and decisionmaking models for both real-world and virtual soccer matches are comprehensively reviewed. Finally, some promising directions in this interdisciplinary area are pointed out. It is claimed that paradigms for both professional sports analytics and AI research could be combined. Moreover, it is quite promising to bridge the gap between the real and virtual domains for soccer match analysis and decision-making.
文摘Sunshine duration (S) based empirical equations have been employed in this study to estimate the daily global solar radiation on a horizontal surface (G) for six meteorological stations in Burundi. Those equations include the Ångström-Prescott linear model and four amongst its derivatives, i.e. logarithmic, exponential, power and quadratic functions. Monthly mean values of daily global solar radiation and sunshine duration data for a period of 20 to 23 years, from the Geographical Institute of Burundi (IGEBU), have been used. For any of the six stations, ten single or double linear regressions have been developed from the above-said five functions, to relate in terms of monthly mean values, the daily clearness index () to each of the next two kinds of relative sunshine duration (RSD): and . In those ratios, G<sub>0</sub>, S<sub>0 </sub>and stand for the extraterrestrial daily solar radiation on a horizontal surface, the day length and the modified day length taking into account the natural site’s horizon, respectively. According to the calculated mean values of the clearness index and the RSD, each station experiences a high number of fairly clear (or partially cloudy) days. Estimated values of the dependent variable (y) in each developed linear regression, have been compared to measured values in terms of the coefficients of correlation (R) and of determination (R<sub>2</sub>), the mean bias error (MBE), the root mean square error (RMSE) and the t-statistics. Mean values of these statistical indicators have been used to rank, according to decreasing performance level, firstly the ten developed equations per station on account of the overall six stations, secondly the six stations on account of the overall ten equations. Nevertheless, the obtained values of those indicators lay in the next ranges for all the developed sixty equations:;;;, with . These results lead to assert that any of the sixty developed linear regressions (and thus equations in terms of and ), fits very adequately measured data, and should be used to estimate monthly average daily global solar radiation with sunshine duration for the relevant station. It is also found that using as RSD, is slightly more advantageous than using for estimating the monthly average daily clearness index, . Moreover, values of statistical indicators of this study match adequately data from other works on the same kinds of empirical equations.
基金supported by the Reform and Innovation of Physical Education Courses in General Education Modules of Science and Technology Universities under the Background of Discipline Integration(No.2024YBJG082)the Practice of Physical Education Curriculum Reform in Sino-Foreign Cooperative Schools in the Guangdong-Hong Kong-Macao Greater Bay Area:A Case Study of the Hong Kong University of Science and Technology(Guangzhou)(No.2024110425).
文摘Background:Youth emerge as an essential period in forming lifelong health and well-being.During adolescence,physical activity(PA)improves cardiovascular health,fitness levels,and the prevention of chronic illnesses,and the positive effect is also extended to the mental realm,as PA reduces symptoms of anxiety and depression.Therefore,the current study aims to enhance our understanding of the correlation between sports participation and depressive symptoms.Additionally,it seeks to explore how demographics such as gender,age,and race can shape these connections.Methods:The research sample was established by utilising the U.S.Youth Risk Behavior Surveillance(YRBS)2019 cycle,and the eligible samples from this cycle were included in the current study.A self-administered survey evaluated sports participation,categorized as Zero,one,two,three,or more teams.This study included 16,104 participants and conducted self-reported questionnaires on gender,grade,race/ethnicity,and depressive symptoms.The study had a nationally representative population of American students in Grades 10 to 12(aged 14–17 years).Results:A total of 7843 females and 8261 males,distributed across age groups(14 years old,15 years old,16 years old,and 17 years old),with the numbers 3430,4445,4300,and 3929,respectively.Overall,there was a negative correlation between sports participation and feelings of sadness(a symptom of depression)among the subjects.This significant relationship between participating in sports teams and experiencing sadness was dose dependent.Conclusion:Youth with more team sports participation is likely to display lower depression symptoms,and differences in demographic factors such as gender,race,and age are detected.Physical activity research is responsible for attending to social equity issues and fostering inclusiveness,particularly concerning different gender and ethnic groups.
文摘Mountainous regions have disadvantages in economic development because of harsh physical and climatic conditions.However,winter tourism activities are one of the key components for supporting economic development in the highlands.Establishing a ski resort area supports direct and indirect employment in a region,and it stops immigration from mountainous regions to other places.This research aimed to assess the potential ski areas using a multi criteria evaluation technique in the Van region which is located in the eastern part of Türkiye.In this context,snow cover duration,sun effect,slope,slope length,elevation,population density,distance from main roads and lake visibility were used as input factors in the decision making process.Each factor was standardized using a fuzzy technique based on existing well-known ski centers in Türkiye.The weight of inputs was defined by applying a survey to the professional skiers.The most important factors were detected as transportation opportunities and snow covers whereas,the least important factors were elevation and population density.Additionally,lake visibility was very important to make a difference from other existing facilities in the region.Therefore,it was included as constraints and lake visible areas were extracted at the final stage of the research.Potential ski areas were mapped in three levels as professional,intermediate and beginner skiers.One of the suitable areas was selected as a sample projection and for the 3D simulation of the ski investment area.Potential costs and benefits were discussed.It was found that a ski tourism area investment can be amortized in 3 years in the region.
文摘BACKGROUND Besides return to work(RTW)and return to sports(RTS),patients also prefer to return to daily activities(RTA)such as walking,sleeping,grocery shopping,and domestic work following total knee arthroplasty(TKA).However,evidence on the timelines and probability of patients’RTA is sparse.AIM To assess the percentage of patients able to RTA,RTW,and RTS after TKA,as well as the timeframe and influencing factors of this return.METHODS A retrospective cohort study with prospectively collected data was conducted at a medium-sized Dutch orthopedic hospital.Assessments of RTA,RTW,and RTS were performed at 3 mo and/or 6 mo following TKA.Investigated factors en-compassed patient characteristics,surgical characteristics,and preoperative patient-reported outcomes.RESULTS TKA patients[n=2063;66 years old(interquartile range[IQR]:7 years);47%male;28 kg/m2(IQR:4 kg/m2)]showed RTA ranging from 28%for kneeling to 94%for grocery shopping,with 20 d(IQR:27 d)spent for putting on shoes to 74 d(IQR:57 d)for kneeling.RTW rates varied from 62%for medium-impact work to 87%for low-impact work,taking 33 d(IQR:29 d)to 78 d(IQR:55 d).RTS ranged from 48%for medium-impact sports to 90%for low-impact sports,occurring within 43 d(IQR:24 d)to 90 d(IQR:60 d).One or more of the investigated factors influenced the return to each of the 14 activities examined,with R²values ranging from 0.013 to 0.127.CONCLUSION Approximately 80%of patients can RTA,RTW,and RTS within 6 mo after TKA.Return is not consistently in-fluenced by predictive factors.Results help set realistic pre-and postoperative expectations.
文摘Participation in sports is spreading all around the world in an attempt of the community to stay active,healthy,prevent health issues and conditions and to ensure quality of life while there is life expectancy and population is getting more and more older.Existing protocols in rehabilitation are sometimes demanding and are addressed in athletes and people with good physical condition while population gets involved in recreational sports activities more and more.Sport injuries are very common not only in athletes but in general population as well.Pilates is a very popular type of exercise and industry around it is flourishing.Although there are indications that it could be used as an alternative in rehabilitation,research is limited in certain fields.The aim of this editorial is to motivate researchers to conduct well-designed studies in sports injuries’rehabilitation based on the Pilates method,to explore the efficacy of the method as a complementary approach and the optimal integration strategies in diverse sports rehabilitation settings.Last but not least,it is an attempt for the need of the community to establish certification on Clinical Pilates Physiotherapists based on the principles of rehabilitation.
文摘Using literature,questionnaires,interviews,and mathematical statistics to investigate the current situation of sports public services in the Chengdu-Chongqing Twin-city Economic Circle.The results show that there are some problems in Chengdu-Chongqing sports public services,such as big difference in the development level of supply between urban and rural areas,low supply level,low efficiency,supply mechanism defect,lack of social sports instructors,an outstanding contradiction between the quality of sports public service and residents’demand.To address the problems,government departments should accelerate the transformation of government functions,improve the relevant regulations and systems,increase the investment in sports public services,improve the quality of supply,cultivate the backbone team,integrate resources,and combine the national characteristics with regional characteristics,take into account the personalized needs of the residents,combine the sports public services with intelligence,and build the service system of“Internet+Fitness.”
文摘On May 8th,the 6th sportsgames of the Buddhist Academy of Xizang was held in Lhasa.The sports games featured field events,track events,and fun sports events,including 100 metres,standing long jump,shot put,400m relay,two-person running with legs tied up,and sandbag carrying-a traditional Tibetan sport.The teachers and students of the academy actively participated in and enjoyed the sports.Let's share their passion forsports together!
文摘To improve the quality of boxing teaching in competitive sports schools,it is necessary to first analyze the strengths and weaknesses of boxing teaching in competitive sports schools,and then optimize the teaching strategy.The strategies include innovating the boxing curriculum system and content,building learning communities inside and outside the classroom,personalizing the teaching forms and methods,using multimedia to broaden the teaching path,focusing on the integration of boxing teaching leagues,and diversifying the teaching incentives and evaluations.
文摘“When a country prospers,sports thrive.”Building a strong sports country is an important connotation of realizing the great rejuvenation of the Chinese nation and building a moderately prosperous society in all respects.Actively engaging in sports diplomacy from the perspective of soft power can expand a country’s international influence,promote friendly cooperation between nations,and enhance the overall image of the country.This article analyzes the concepts of soft power and sports diplomacy and explores the path of China’s sports diplomacy from four aspects:promoting diverse subjects,expanding propaganda channels,optimizing underlying design,and actively participating in competitions.
文摘The Double Take column looks at a single topic from an African and Chinese perspective.This month we discuss whether it is worthwhile to engage in extreme sports.
文摘Objective:This study aims to explore the effect of swimming athletes’burnout on their sports motivation in Hunan University,China.It seeks to understand how burnout influences various motivational factors,providing insights for optimizing swimming sports courses and enhancing student participation.Method:Employing random sampling,the study surveyed 260 swimming athletes from Hunan University.The research utilized a questionnaire divided into three parts:demographic information,the Athlete Burnout Questionnaire(ABQ),and the Intrinsic Motivation Inventory(IMI).Pearson’s r correlation analysis was conducted using SPSS to examine the relationships between burnout dimensions and motivational factors.Results:The study found significant correlations between a reduced sense of accomplishment and various motivational dimensions,including“interest/enjoyment,”“perceived competence,”“perceived choice,”and particularly“perceived tension.”Physical exhaustion showed a significant correlation only with“perceived tension,”indicating a strong link between psychological stress and physical fatigue.Sports devaluation was significantly correlated with“perceived tension,”suggesting that psychological stress impacts athletes’valuation of their sport.Conclusion:The findings highlight the complex interplay between burnout and motivation in swimming athletes.Psychological stress,as indicated by“perceived tension,”emerges as a key factor influencing both the physical and emotional aspects of burnout.The study underscores the need for holistic training approaches that balance physical training with psychological well-being,personalized coaching,and supportive environments to enhance intrinsic motivation and manage stress effectively.