Incredible progress has been made in human action recognition(HAR),significantly impacting computer vision applications in sports analytics.However,identifying dynamic and complex movements in sports like badminton re...Incredible progress has been made in human action recognition(HAR),significantly impacting computer vision applications in sports analytics.However,identifying dynamic and complex movements in sports like badminton remains challenging due to the need for precise recognition accuracy and better management of complex motion patterns.Deep learning techniques like convolutional neural networks(CNNs),long short-term memory(LSTM),and graph convolutional networks(GCNs)improve recognition in large datasets,while the traditional machine learning methods like SVM(support vector machines),RF(random forest),and LR(logistic regression),combined with handcrafted features and ensemble approaches,perform well but struggle with the complexity of fast-paced sports like badminton.We proposed an ensemble learning model combining support vector machines(SVM),logistic regression(LR),random forest(RF),and adaptive boosting(AdaBoost)for badminton action recognition.The data in this study consist of video recordings of badminton stroke techniques,which have been extracted into spatiotemporal data.The three-dimensional distance between each skeleton point and the right hip represents the spatial features.The temporal features are the results of Fast Dynamic Time Warping(FDTW)calculations applied to 15 frames of each video sequence.The weighted ensemble model employs soft voting classifiers from SVM,LR,RF,and AdaBoost to enhance the accuracy of badminton action recognition.The E2 ensemble model,which combines SVM,LR,and AdaBoost,achieves the highest accuracy of 95.38%.展开更多
Conducting an investigation and analysis using literature review methods,the current state of interest cultivation among young badminton players was examined.The findings indicate a less optimistic situation regarding...Conducting an investigation and analysis using literature review methods,the current state of interest cultivation among young badminton players was examined.The findings indicate a less optimistic situation regarding interest development among these young athletes:the initial interest motivation of young badminton players is significantly influenced by parents,with parental focus more on sporting achievements than the child’s happiness,neglecting the emotional well-being of children;coaches prioritize fundamental technical skills over interest cultivation,and the methods used to stimulate interest still exhibit traditional tendencies,overlooking the application of game-based and competitive approaches;there is a lack of practical implementation in interest cultivation;the majority of coaches create an unfavorable classroom atmosphere,easily overlooking students’emotional experiences.Understanding the current development status and trends in interest cultivation for youth badminton,this study analyzed data on interest cultivation methods.It was found that the majority of badminton teaching tends to focus on scientific technical training and physical fitness for young players.While many coaches and parents express affirmation for interest cultivation methods,they are not widely applied in practice at present.Incorporating game-based teaching into badminton instruction has the potential to enhance students’interest in badminton learning,especially for novice young players,facilitating the early establishment of a love for badminton.展开更多
In college badminton teaching,teachers utilize the group cooperative learning method,which not only helps to improve students’badminton skill level but also cultivates their teamwork spirit,communication skills,and s...In college badminton teaching,teachers utilize the group cooperative learning method,which not only helps to improve students’badminton skill level but also cultivates their teamwork spirit,communication skills,and self-management ability unconsciously.In view of this,this paper mainly describes the significance of applying the group cooperative learning method in college badminton teaching,analyzes the current problems in college badminton teaching,and aims to discover effective development strategies for group cooperative learning method in college badminton teaching in order to improve the effectiveness of college badminton teaching.展开更多
In order to investigate the feasibility of serum creatine kinase （CK） and blood urea nitrogen （BUN） in monitoring pre-competition training of badminton athletes, the pre-competition training load of 20 badminton a...In order to investigate the feasibility of serum creatine kinase （CK） and blood urea nitrogen （BUN） in monitoring pre-competition training of badminton athletes, the pre-competition training load of 20 badminton athletes was studied, and serum CK and BUN were determined before, immediate and next morning after training. The results showed that after intensive training for one week, serum CK levels were significantly increased by 57.53 mmol/L （P〈0.05）. After regulation of the training intensity, average serum CK levels were increased by 21.79 mmol/L （P〈0.05）. BUN contents were increased by 0.83 mmol/L on average with the difference being not significant （P〉0.05）. After intermittent training, there was significant difference in the average increased levels of serum CK in athletes （P〈0.05）. There was significant difference before and after regulation of training （P〈0.05）. The increased levels of BUN were 0.78 mmol/L without significant difference （P〉0.05）. It was concluded that serum CK was one of the biochemical indicators monitoring the training load sensitivity of badminton athletes, but BUN was of little value in monitoring the training load. Both serum CK and BUN recovered slowly after one-week intensive training and intermittent training, suggesting the metabolic mechanism of human body in training needs further study.展开更多
Purpose:The purpose of present study was to investigate the impact of sport experience on response inhibition and response re-engagement in expert badminton athletes during the stop-signal task and change-signal task....Purpose:The purpose of present study was to investigate the impact of sport experience on response inhibition and response re-engagement in expert badminton athletes during the stop-signal task and change-signal task.Methods:A total of 19 badminton athletes and 20 nonathletes performed both the stop-signal task and change-signal task.Reaction times(RTs)and event-related potentials were recorded and analyzed.Results:Behavioral results indicated that badminton athletes responded faster than nonathletes to go stimuli and to change signals,with faster change RTs and change-signal RTs,which take into consideration the variable stimulus onset time mean.During successful change trials in the change-signal task,the amplitudes of the event-related potential components N2 and P3 were smaller for badminton athletes than for nonathletes.Moreover,change-signal RTs and N2 amplitudes as well as change RTs and P3 amplitudes were significantly correlated in badminton athletes.A significant correlation was also found between the amplitude of the event-related potential component N1 and response accuracy to change signals in badminton athletes.Conclusion:Moderation of brain cortical activity in badminton athletes was more associated with their ability to rapidly inhibit a planned movement and re-engage with a new movement compared with nonathletes.The superior inhibitory control and more efficient neural mechanisms in badminton athletes compared with nonathletes might be a result of badminton athletes’ professional training experience.展开更多
The current study is the first to examine the idea that badminton players may use mental rotation skills to imagine the flight direction of the shuttlecock.The study included badminton experts,near-experts,and non-bad...The current study is the first to examine the idea that badminton players may use mental rotation skills to imagine the flight direction of the shuttlecock.The study included badminton experts,near-experts,and non-badminton players and asked them to complete a specially designed mental rotation task,inspired by the methods from Shepard and Metzler(1971).The findings showed no significant group difference between the three expertise groups.This is in support of previous research examining visuo-spatial skills in badminton(Ozel,Larue,&Molinaro,2002;2004;Wang et al.,2015).The current study therefore concluded that badminton players may not have greater mental rotation capacity than other groups.However,these studies found that the badminton players responded quicker on the task than non-badminton players.The current study therefore hypothesised that badminton players might have greater mental rotation awareness,rather than mental rotation capacity,which allows them to respond quicker to visuo-spatial tasks.展开更多
This study aimed to elucidate the key risk factors for shoulder pain in Japanese middle school-, high school-, and university-level badminton players and use a regression formula to predict the probability of shoulde...This study aimed to elucidate the key risk factors for shoulder pain in Japanese middle school-, high school-, and university-level badminton players and use a regression formula to predict the probability of shoulder pain onset based on risk factor combinations. Based on a self-report questionnaire survey, we included 461 individuals （102 middle school students, 134 high school students, and 225 university students） with a history of shoulder pain in the previous year and 541 individuals with no shoulder pain in the previous year. Then, we performed logistic regression analysis of individual characteristics and history of shoulder pain to analyze the factors associated with shoulder pain onset. Analysis of patients excluding those currently experiencing shoulder pain indicated that a history of shoulder pain （〉 1 year previously） predicted shoulder pain onset. Analysis of patients excluding those with a history of shoulder pain indicated that undergoing care, being of university age, having a long history of competing, and short cool-down times were associated with recurrent pain. However, results were different for each age group. The fact that half the Japanese middle school, high school, and university badminton players had a history of shoulder pain suggests that they will experience recurrent shoulder pain. The results also suggest that different factors are important in each age group. Thus, it is critical to establish evidence-based countermeasures to prevent shoulder pain that interferes with play.展开更多
In this paper, we conduct research on the principles of interactive teaching and practice teaching with the applications on badminton education in the colleges. Thinking teaching method is not only a kind of the chang...In this paper, we conduct research on the principles of interactive teaching and practice teaching with the applications on badminton education in the colleges. Thinking teaching method is not only a kind of the change of teaching methods, as well as change of teaching ideas, it focuses on teaching, teaching objectives, teaching idea has profound changes, better reflect the ideology of the quality education. Practice the thinking teaching method for physical education teachers have a new teaching concept, the value of the face up to the cultivation of the ability and intelligence. At the same time also require physical education teachers have a relatively wide range of knowledge, especially about scientific discovery and scientific knowledge of thinking. With the combination of the general interactive teaching and practice teaching approaches, we propose the novel paradigm for badminton education which holds the vital significance.展开更多
Shuttlecock used for badminton is light in mass so that its flight locus is strongly influenced by air. The highest launching velocity of the shuttlecock by professional badminton players exceeds speeds of over 83.3 m...Shuttlecock used for badminton is light in mass so that its flight locus is strongly influenced by air. The highest launching velocity of the shuttlecock by professional badminton players exceeds speeds of over 83.3 m/s （300 km/hr）. In this study, a new badminton server machine was developed. The badminton machine can launch the shuttlecocks at wide range of speeds up to 52.8 m/s （190 km/hr） and with many shot types such as smash, clear and so on, which are easily achieved. The finite element models of a shuttlecock with feathers and the badminton machine were made, and the launching simulations of the shuttlecock were tried. The roller with a large diameter attained a higher speed of the shuttlecock than the small rollers for all kinds of launching conditions. The taper angles of the roller edge and the insert height of the shuttlecock relative to the roller surface were optimized for attaining the maximum shuttle speed by the response surface approach. After the optimization, the performance of the badminton machine had been improved about 7% as the shuttle speeds increase and the stress causing the shuttle deterioration decreased.展开更多
With the gradual improvement of badminton level in China,the research on the teaching and training methods of badminton has been further enriched.Badminton multi-ball training is an important training method which can...With the gradual improvement of badminton level in China,the research on the teaching and training methods of badminton has been further enriched.Badminton multi-ball training is an important training method which can improve the training intensity and the actual competition ability of the exerciser.It can comprehensively reflect the request of the opponent’s tactics,footwork and strain ability in the badminton event.In the course of training,the intensity of training load can be adjusted reasonably by controlling time,frequency and speed.Therefore,multi-ball training has gradually become a training mode widely used in badminton training.This article will briefly analyze the composition,classification,and function of multi-ball training,and according to the various forms and methods of badminton training at present,put forward appropriate suggestions on the application of multi-ball training in badminton,in order to improve the badminton multi-ball training theory.展开更多
This paper analyses the connotation of business value of china＇s badminton sports from the present situation of the commercial development and the existing problems of the badminton in china. To put it another way, t...This paper analyses the connotation of business value of china＇s badminton sports from the present situation of the commercial development and the existing problems of the badminton in china. To put it another way, the commercial value of badminton means the returns of investing badminton or its related industries.展开更多
基金supported by the Center for Higher Education Funding(BPPT)and the Indonesia Endowment Fund for Education(LPDP),as acknowledged in decree number 02092/J5.2.3/BPI.06/9/2022。
文摘Incredible progress has been made in human action recognition(HAR),significantly impacting computer vision applications in sports analytics.However,identifying dynamic and complex movements in sports like badminton remains challenging due to the need for precise recognition accuracy and better management of complex motion patterns.Deep learning techniques like convolutional neural networks(CNNs),long short-term memory(LSTM),and graph convolutional networks(GCNs)improve recognition in large datasets,while the traditional machine learning methods like SVM(support vector machines),RF(random forest),and LR(logistic regression),combined with handcrafted features and ensemble approaches,perform well but struggle with the complexity of fast-paced sports like badminton.We proposed an ensemble learning model combining support vector machines(SVM),logistic regression(LR),random forest(RF),and adaptive boosting(AdaBoost)for badminton action recognition.The data in this study consist of video recordings of badminton stroke techniques,which have been extracted into spatiotemporal data.The three-dimensional distance between each skeleton point and the right hip represents the spatial features.The temporal features are the results of Fast Dynamic Time Warping(FDTW)calculations applied to 15 frames of each video sequence.The weighted ensemble model employs soft voting classifiers from SVM,LR,RF,and AdaBoost to enhance the accuracy of badminton action recognition.The E2 ensemble model,which combines SVM,LR,and AdaBoost,achieves the highest accuracy of 95.38%.
文摘Conducting an investigation and analysis using literature review methods,the current state of interest cultivation among young badminton players was examined.The findings indicate a less optimistic situation regarding interest development among these young athletes:the initial interest motivation of young badminton players is significantly influenced by parents,with parental focus more on sporting achievements than the child’s happiness,neglecting the emotional well-being of children;coaches prioritize fundamental technical skills over interest cultivation,and the methods used to stimulate interest still exhibit traditional tendencies,overlooking the application of game-based and competitive approaches;there is a lack of practical implementation in interest cultivation;the majority of coaches create an unfavorable classroom atmosphere,easily overlooking students’emotional experiences.Understanding the current development status and trends in interest cultivation for youth badminton,this study analyzed data on interest cultivation methods.It was found that the majority of badminton teaching tends to focus on scientific technical training and physical fitness for young players.While many coaches and parents express affirmation for interest cultivation methods,they are not widely applied in practice at present.Incorporating game-based teaching into badminton instruction has the potential to enhance students’interest in badminton learning,especially for novice young players,facilitating the early establishment of a love for badminton.
文摘In college badminton teaching,teachers utilize the group cooperative learning method,which not only helps to improve students’badminton skill level but also cultivates their teamwork spirit,communication skills,and self-management ability unconsciously.In view of this,this paper mainly describes the significance of applying the group cooperative learning method in college badminton teaching,analyzes the current problems in college badminton teaching,and aims to discover effective development strategies for group cooperative learning method in college badminton teaching in order to improve the effectiveness of college badminton teaching.
文摘In order to investigate the feasibility of serum creatine kinase （CK） and blood urea nitrogen （BUN） in monitoring pre-competition training of badminton athletes, the pre-competition training load of 20 badminton athletes was studied, and serum CK and BUN were determined before, immediate and next morning after training. The results showed that after intensive training for one week, serum CK levels were significantly increased by 57.53 mmol/L （P〈0.05）. After regulation of the training intensity, average serum CK levels were increased by 21.79 mmol/L （P〈0.05）. BUN contents were increased by 0.83 mmol/L on average with the difference being not significant （P〉0.05）. After intermittent training, there was significant difference in the average increased levels of serum CK in athletes （P〈0.05）. There was significant difference before and after regulation of training （P〈0.05）. The increased levels of BUN were 0.78 mmol/L without significant difference （P〉0.05）. It was concluded that serum CK was one of the biochemical indicators monitoring the training load sensitivity of badminton athletes, but BUN was of little value in monitoring the training load. Both serum CK and BUN recovered slowly after one-week intensive training and intermittent training, suggesting the metabolic mechanism of human body in training needs further study.
基金the Natural Science Foundation of China (31571151,31700985)the Scientific and Technological Commission of Shanghai(17080503100)
文摘Purpose:The purpose of present study was to investigate the impact of sport experience on response inhibition and response re-engagement in expert badminton athletes during the stop-signal task and change-signal task.Methods:A total of 19 badminton athletes and 20 nonathletes performed both the stop-signal task and change-signal task.Reaction times(RTs)and event-related potentials were recorded and analyzed.Results:Behavioral results indicated that badminton athletes responded faster than nonathletes to go stimuli and to change signals,with faster change RTs and change-signal RTs,which take into consideration the variable stimulus onset time mean.During successful change trials in the change-signal task,the amplitudes of the event-related potential components N2 and P3 were smaller for badminton athletes than for nonathletes.Moreover,change-signal RTs and N2 amplitudes as well as change RTs and P3 amplitudes were significantly correlated in badminton athletes.A significant correlation was also found between the amplitude of the event-related potential component N1 and response accuracy to change signals in badminton athletes.Conclusion:Moderation of brain cortical activity in badminton athletes was more associated with their ability to rapidly inhibit a planned movement and re-engage with a new movement compared with nonathletes.The superior inhibitory control and more efficient neural mechanisms in badminton athletes compared with nonathletes might be a result of badminton athletes’ professional training experience.
文摘The current study is the first to examine the idea that badminton players may use mental rotation skills to imagine the flight direction of the shuttlecock.The study included badminton experts,near-experts,and non-badminton players and asked them to complete a specially designed mental rotation task,inspired by the methods from Shepard and Metzler(1971).The findings showed no significant group difference between the three expertise groups.This is in support of previous research examining visuo-spatial skills in badminton(Ozel,Larue,&Molinaro,2002;2004;Wang et al.,2015).The current study therefore concluded that badminton players may not have greater mental rotation capacity than other groups.However,these studies found that the badminton players responded quicker on the task than non-badminton players.The current study therefore hypothesised that badminton players might have greater mental rotation awareness,rather than mental rotation capacity,which allows them to respond quicker to visuo-spatial tasks.
文摘This study aimed to elucidate the key risk factors for shoulder pain in Japanese middle school-, high school-, and university-level badminton players and use a regression formula to predict the probability of shoulder pain onset based on risk factor combinations. Based on a self-report questionnaire survey, we included 461 individuals （102 middle school students, 134 high school students, and 225 university students） with a history of shoulder pain in the previous year and 541 individuals with no shoulder pain in the previous year. Then, we performed logistic regression analysis of individual characteristics and history of shoulder pain to analyze the factors associated with shoulder pain onset. Analysis of patients excluding those currently experiencing shoulder pain indicated that a history of shoulder pain （〉 1 year previously） predicted shoulder pain onset. Analysis of patients excluding those with a history of shoulder pain indicated that undergoing care, being of university age, having a long history of competing, and short cool-down times were associated with recurrent pain. However, results were different for each age group. The fact that half the Japanese middle school, high school, and university badminton players had a history of shoulder pain suggests that they will experience recurrent shoulder pain. The results also suggest that different factors are important in each age group. Thus, it is critical to establish evidence-based countermeasures to prevent shoulder pain that interferes with play.
文摘In this paper, we conduct research on the principles of interactive teaching and practice teaching with the applications on badminton education in the colleges. Thinking teaching method is not only a kind of the change of teaching methods, as well as change of teaching ideas, it focuses on teaching, teaching objectives, teaching idea has profound changes, better reflect the ideology of the quality education. Practice the thinking teaching method for physical education teachers have a new teaching concept, the value of the face up to the cultivation of the ability and intelligence. At the same time also require physical education teachers have a relatively wide range of knowledge, especially about scientific discovery and scientific knowledge of thinking. With the combination of the general interactive teaching and practice teaching approaches, we propose the novel paradigm for badminton education which holds the vital significance.
文摘Shuttlecock used for badminton is light in mass so that its flight locus is strongly influenced by air. The highest launching velocity of the shuttlecock by professional badminton players exceeds speeds of over 83.3 m/s （300 km/hr）. In this study, a new badminton server machine was developed. The badminton machine can launch the shuttlecocks at wide range of speeds up to 52.8 m/s （190 km/hr） and with many shot types such as smash, clear and so on, which are easily achieved. The finite element models of a shuttlecock with feathers and the badminton machine were made, and the launching simulations of the shuttlecock were tried. The roller with a large diameter attained a higher speed of the shuttlecock than the small rollers for all kinds of launching conditions. The taper angles of the roller edge and the insert height of the shuttlecock relative to the roller surface were optimized for attaining the maximum shuttle speed by the response surface approach. After the optimization, the performance of the badminton machine had been improved about 7% as the shuttle speeds increase and the stress causing the shuttle deterioration decreased.
文摘With the gradual improvement of badminton level in China,the research on the teaching and training methods of badminton has been further enriched.Badminton multi-ball training is an important training method which can improve the training intensity and the actual competition ability of the exerciser.It can comprehensively reflect the request of the opponent’s tactics,footwork and strain ability in the badminton event.In the course of training,the intensity of training load can be adjusted reasonably by controlling time,frequency and speed.Therefore,multi-ball training has gradually become a training mode widely used in badminton training.This article will briefly analyze the composition,classification,and function of multi-ball training,and according to the various forms and methods of badminton training at present,put forward appropriate suggestions on the application of multi-ball training in badminton,in order to improve the badminton multi-ball training theory.
文摘This paper analyses the connotation of business value of china＇s badminton sports from the present situation of the commercial development and the existing problems of the badminton in china. To put it another way, the commercial value of badminton means the returns of investing badminton or its related industries.
