On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was...On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was guided by the Chinese Embassy in Indonesia and co-organised by the ASEAN-China Centre(ACC),the Memorial to Zhou Enlai and Deng Yingchao,the China Friendship Foundation for Peace and Development,the Beijing One Heart Sphere Charity Foundation,and the Enlai Foundation.展开更多
Under the premise of fully respecting current national standard of table tennis ball,this paper presents an integrated and effective method for testing diameter,roundness and hardness of table tennis ball based on vis...Under the premise of fully respecting current national standard of table tennis ball,this paper presents an integrated and effective method for testing diameter,roundness and hardness of table tennis ball based on vision measurement. Firstly,camera calibration is performed by 40 mm gauge block to capture the images of table tennis ball in static and pressed state in an appropriate lighting condition. Then image binarization and extraction of image contour are carried out. The least square method is used to fit its center. Finally,the diameter,roundness and hardness are calculated. The measurement data are analyzed by using the method presented in this paper for table tennis ball with known parameter data and with unknown parameter data. Experimental results show that this method can improve measurement accuracy and provide a technical basis for the online testing and integration measurement of table tennis ball.展开更多
BACKGROUND Shoulder is the most injured part in table tennis players,and it takes multiple roles in transmitting power and striking the center of the ball during the stroke.Proprioception is strongly correlated with h...BACKGROUND Shoulder is the most injured part in table tennis players,and it takes multiple roles in transmitting power and striking the center of the ball during the stroke.Proprioception is strongly correlated with high level of athletic performance.It is customary to assume that there is a correlation between proprioception and muscle strength and therefore proprioceptive assessment and rehabilitation is often neglected.AIM To investigate the correlation between isokinetic muscle strength and proprioception in the internal and external rotation muscle groups of elite Chinese male table tennis players,to provide reference for physical training and rehabilitation of elite table tennis players.METHODS A total of 19 national elite table tennis players from the Chinese National Table Tennis Team were recruited in this research.All of them had more than 10 years training experience and had participated major competitions such as the National Games and World Youth Championships.IsoMed 2000 was used to test the peak torque of internal and external rotation isokinetic concentric contraction of the athletes'bilateral shoulder joints at low speed(60°/s)and high speed(180°/s)respectively;IsoMed 2000 was used to conduct the Joint Position Reproduction test to evaluate the athletes'proprioceptive ability capacity at low speed(60°/s)and high speed(180°/s)respectively.If the data satisfied the normal distribution,the correlation between the differences in peak torque s and angles in different directions was analyzed using a Pearson simple linear model;otherwise,Spearman correlation analysis was used.The comparison of proprioceptive ability between the table tennis racket-holding hand and non-racket-holding hands was performed using independent samples t-test if the data satisfied a normal distribution;otherwise,the Mann-Whitney U test was used.RESULTS There was no direct linear correlation between the strength and proprioceptive correlation analysis at slow speed(60°/s)and fast speed(180°/s)in the racket-holding hand;At the slow speed(60°/s)and fast speed(180°/s),there was no correlation between muscle strength and proprioception in the non-racket-holding hand except for the internal rotation variable error(VE)and external rotation relative peak torque,which showed a moderate positive correlation(r=0.477,P<0.05),(r=0.554,P<0.05).The internal rotation’s constant error(CE)and VE were 1.06±3.99 and 2.94±2.16,respectively,for the racket-holding hand,and-3.36±2.39 and 1.22±0.93,respectively,for the non-racket-holding hand;the internal rotation’s CE,VE of the racket-holding hand was lower than that of the non-racket-holding hand,and there was a highly significant difference(P<0.01).CONCLUSION There was no correlation between muscle strength and proprioceptive function in the internal and external rotation of the racket-holding hand’s shoulder in elite Chinese male table tennis players.These results may be useful for interventions for shoulder injuries and for the inclusion of proprioceptive training in rehabilitation programs.展开更多
Purpose:The purposes of this study were to examine the trajectories of athlete burnout across a 2-month period characterized by high physical,psychological,and social demands to explore(1)whether several subgroups of ...Purpose:The purposes of this study were to examine the trajectories of athlete burnout across a 2-month period characterized by high physical,psychological,and social demands to explore(1)whether several subgroups of athletes representing distinct burnout trajectories emerged from the analyses and(2)whether athlete burnout symptoms(reduced accomplishment,sport devaluation,and exhaustion)developed in tandem or whether some burnout dimensions predicted downstream changes in other dimensions(causal ordering model).Methods:One hundred and fifty-nine table tennis players in intensive training centers completed a self-reported athlete burnout measure across 3 time points within a 2-month period characterized by high demands.Data were analyzed through latent class growth analysis.Results:Results of latent class growth analysis showed 3 distinct trajectories for each athlete burnout dimension,indicating not only linear or quadratic change but also stability in longitudinal athlete burnout perceptions.Results also suggested that the 3 dimensions of athlete burnout did not develop in tandem.Rather,the likelihood of belonging to particular emerging trajectories of sport devaluation and physical/emotional exhaustion was significantly influenced by the athletes’perception of reduced accomplishment assessed at Time 1.Thus,reduced accomplishment predicted downstream changes in the 2 other athlete burnout dimensions.Conclusion:As a whole,these results highlighted that the multinomial heterogeneity in longitudinal athlete burnout symptoms needs to be accounted for in future research.展开更多
Under the premise of fully respecting Technical Leaflet T3developed by the International Table Tennis Federation(I T T F),this paper proposes an effective method for testing the veer degree of the table tennis ball ba...Under the premise of fully respecting Technical Leaflet T3developed by the International Table Tennis Federation(I T T F),this paper proposes an effective method for testing the veer degree of the table tennis ball based on airflow suspension and machine vision.By sequentially capturing the images of the ball in the stable state of spinning and suspension,a set of fitting circle centres from different circular sections can be obtained by circle fitting through the least square method.The minimum circumscribed circle(MCC)diameter of these centres is served as a basic parameter to evaluate the veer degree of the ball.Experimental results show that this diameter can effectively reflect the veer degree of the ball.The method proposed in this papercan provide a technical basis for the veer online testing of the table tennis ball.展开更多
The purpose of this study was to analyse and compare the match characteristics of wheelchair PTT （Para table tennis） classes that played in the team tournament at the Rio 2016 Paralympic. Eight PTT matches of each s...The purpose of this study was to analyse and compare the match characteristics of wheelchair PTT （Para table tennis） classes that played in the team tournament at the Rio 2016 Paralympic. Eight PTT matches of each selected class （1, 2, 4 and 5） were analysed.The variables analysed were DR （duration of rally） and RT （rest time）. In observing the characteristics of the matches in Classes 1, 2, 4 and 5, the DR corresponded to 3.4 ± 1.2, 4.2 ± 1.5, 4.5 ± 1.6 and 5.2 ± 1.2 seconds, and RT to 13.8 ± 3.5, 14 ± 3.5, 13.3 ± 3.1 and 12.3± 3.3 seconds. In Classes 1 and 2, significant differences in DR were found, but none in RT （p 〉 0.05）. In the DR and RT of classes 4 and 5 there were significant differences （p 〈 0.05）. The results indicated that the DR in Classes 1 and 2 were different because of sitting balance due to severe reduction of function in Class 1 playing arm, interfering in the rally and rest. In Classes 4 and 5 the differences in DR and RT were caused by little sitting balance in Class 4. These characteristics should be used by coaches to check the disadvantages that Class 1 presents against Class 2, and the physical limitations of Class 4 that can directly influence DR in the team tournament against athletes with normal trunk muscle function （Class 5）. Planned training prescriptions between classes would aim at achieving better sport performance in training and team tournaments.展开更多
The coordination abilities are closely related to the development of technical motor skills, where the player cannot master the technical skills in the special activity, in case lack of special coordination abilities ...The coordination abilities are closely related to the development of technical motor skills, where the player cannot master the technical skills in the special activity, in case lack of special coordination abilities for this activity. Many of table tennis experts agree on that the special coordination abilities for table tennis include each of： （1） the motor adaptation and adjustment ability; （2） the ability to differentiate; （3） reaction speed ability; （4） orientation ability; （5） balance ability; （6） coupling ability; and （7） the ability to sense the rhythm. The aim of this study is to design a training program to develop the special coordination abilities of table tennis and identify the impact of this program on the general skill ability for table tennis juniors. The researcher used the experimental method in two groups： One group is experimental group and another is the control group. The most important result of this study was the training program led to the improvement of the special coordination abilities of table tennis for the experimental group, which led to higher levels of the general skill ability in table tennis for the experimental group more than the control group.展开更多
In addition to Natalie Du Toit, another female athlete has competed in both theBeijing Olympics and Paralympics. She is Natalia Partyka, a table tennis player whowas born without her lower right arm.
GUAN Yan sat on the blue stand at Tianjin Stadium. Beside her were the members of China’ s National Table Tennis Team in purple sportswear. Looking at her, no one would associate this small, amiable, grey-haired old ...GUAN Yan sat on the blue stand at Tianjin Stadium. Beside her were the members of China’ s National Table Tennis Team in purple sportswear. Looking at her, no one would associate this small, amiable, grey-haired old mother with the brave sportswomen and sportsmen, yet she is physician to China’s National Table Tennis Team. She has worked with them for 34 years, ever since the 26th World Table Tennis Championships. At that time she was 24 years old and a new graduate of展开更多
At the request of the Chinese Embassy in Namibia,the Nanjing Municipal Government invited the Namibian Table Tennis Association to send a delegation to visit the city.Led by association President Ramon Hansen,the Nami...At the request of the Chinese Embassy in Namibia,the Nanjing Municipal Government invited the Namibian Table Tennis Association to send a delegation to visit the city.Led by association President Ramon Hansen,the Namibian players received table tennis training from Aug 23 to Sept 5,2016.The delegation’s展开更多
I had a pleasant Sunday last week.In the morning,I got up late and then began to do my homework.I spent nearly two hours on my homework.Next,I had fun watching a TV show.When my mom was cooking lunch,I cleaned the hou...I had a pleasant Sunday last week.In the morning,I got up late and then began to do my homework.I spent nearly two hours on my homework.Next,I had fun watching a TV show.When my mom was cooking lunch,I cleaned the house and washed my clothes.In the afternoon,I played table tennis happily with my best friend Kou Yu.展开更多
Many people play table tennis.You can also call it Ping-Pong.It is a fun game.How do you play?You need a table tennis table with a net in the middle.You also need a Ping-Pong ball,some paddles and a friend.First,hit t...Many people play table tennis.You can also call it Ping-Pong.It is a fun game.How do you play?You need a table tennis table with a net in the middle.You also need a Ping-Pong ball,some paddles and a friend.First,hit the ball with your paddle.The ball goes over the net.Then your friend hits it back to you.Then you hit it again.The ball can move quickly!So sometimes you miss it.展开更多
At present, with the increasing emphasis on physical education in China, colleges and universities have made further scientific and reasonable plans for the teaching content and system of physical education courses. A...At present, with the increasing emphasis on physical education in China, colleges and universities have made further scientific and reasonable plans for the teaching content and system of physical education courses. Among them, in the teaching of physical education courses in higher vocational colleges, teachers in higher vocational colleges must also deepen the new concept of the integration of physical education and teaching, realize the innovation and reform of the physical education course mode in higher vocational colleges, explore and design a physical education course teaching system more suitable for students in the new era, build an ideal course mode, and realize the rapid development of the integration of physical education and teaching in higher vocational colleges. The integration of physical education and teaching is an important means to improve the quality of physical education in higher vocational colleges. Table tennis is deeply loved by most students, but it requires a learning process to master table tennis technology. In skill learning, demonstration actions are crucial. A good demonstration action can arouse students strong interest in learning and skill mastery. However, for various reasons in higher vocational schools, the demonstration and explanation actions of physical education teachers are not perfect. However, it is easier for senior professional table tennis coaches and athletes to teach students technical movements through their demonstration actions and their own experience of explanation. This requires the comprehensive implementation of the education policy of sports and education integration, and the adoption of "please come in and go out". Only by allowing more professional coaches and athletes to enter the campus, changing the teaching mode, innovating the education methods, and creating clubs, can we truly improve the quality of education and cultivate more and better craftsmen from large countries for the country.展开更多
ONE STEP CLOSER Paris Olympic table tennis champion Ma Long runs with the torch during the torch relay for the 12th World Games on July 26 in Deyang,Sichuan Province.This was the first torch relay in World Games histo...ONE STEP CLOSER Paris Olympic table tennis champion Ma Long runs with the torch during the torch relay for the 12th World Games on July 26 in Deyang,Sichuan Province.This was the first torch relay in World Games history.The 2025 World Games,running from August 7 to 17 in Chengdu,Sichuan,draws thousands of athletes from around the world to compete in 35 sports.The World Games,organized by the International World Games Association,is a multi-sport event held every four years in the year following the Summer Olympic Games.It primarily features competitions not seen in the Olympics,including American football and flying disc.展开更多
【试题1】(命题人:李超群)Chinese table tennis icon Ma Long received the Outstanding Sporting Career Award from the Association of National Olympic Committees on Oct.30,recognizing his1_(exception)achievements and contr...【试题1】(命题人:李超群)Chinese table tennis icon Ma Long received the Outstanding Sporting Career Award from the Association of National Olympic Committees on Oct.30,recognizing his1_(exception)achievements and contributions to the sport.展开更多
文摘On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was guided by the Chinese Embassy in Indonesia and co-organised by the ASEAN-China Centre(ACC),the Memorial to Zhou Enlai and Deng Yingchao,the China Friendship Foundation for Peace and Development,the Beijing One Heart Sphere Charity Foundation,and the Enlai Foundation.
文摘Under the premise of fully respecting current national standard of table tennis ball,this paper presents an integrated and effective method for testing diameter,roundness and hardness of table tennis ball based on vision measurement. Firstly,camera calibration is performed by 40 mm gauge block to capture the images of table tennis ball in static and pressed state in an appropriate lighting condition. Then image binarization and extraction of image contour are carried out. The least square method is used to fit its center. Finally,the diameter,roundness and hardness are calculated. The measurement data are analyzed by using the method presented in this paper for table tennis ball with known parameter data and with unknown parameter data. Experimental results show that this method can improve measurement accuracy and provide a technical basis for the online testing and integration measurement of table tennis ball.
文摘BACKGROUND Shoulder is the most injured part in table tennis players,and it takes multiple roles in transmitting power and striking the center of the ball during the stroke.Proprioception is strongly correlated with high level of athletic performance.It is customary to assume that there is a correlation between proprioception and muscle strength and therefore proprioceptive assessment and rehabilitation is often neglected.AIM To investigate the correlation between isokinetic muscle strength and proprioception in the internal and external rotation muscle groups of elite Chinese male table tennis players,to provide reference for physical training and rehabilitation of elite table tennis players.METHODS A total of 19 national elite table tennis players from the Chinese National Table Tennis Team were recruited in this research.All of them had more than 10 years training experience and had participated major competitions such as the National Games and World Youth Championships.IsoMed 2000 was used to test the peak torque of internal and external rotation isokinetic concentric contraction of the athletes'bilateral shoulder joints at low speed(60°/s)and high speed(180°/s)respectively;IsoMed 2000 was used to conduct the Joint Position Reproduction test to evaluate the athletes'proprioceptive ability capacity at low speed(60°/s)and high speed(180°/s)respectively.If the data satisfied the normal distribution,the correlation between the differences in peak torque s and angles in different directions was analyzed using a Pearson simple linear model;otherwise,Spearman correlation analysis was used.The comparison of proprioceptive ability between the table tennis racket-holding hand and non-racket-holding hands was performed using independent samples t-test if the data satisfied a normal distribution;otherwise,the Mann-Whitney U test was used.RESULTS There was no direct linear correlation between the strength and proprioceptive correlation analysis at slow speed(60°/s)and fast speed(180°/s)in the racket-holding hand;At the slow speed(60°/s)and fast speed(180°/s),there was no correlation between muscle strength and proprioception in the non-racket-holding hand except for the internal rotation variable error(VE)and external rotation relative peak torque,which showed a moderate positive correlation(r=0.477,P<0.05),(r=0.554,P<0.05).The internal rotation’s constant error(CE)and VE were 1.06±3.99 and 2.94±2.16,respectively,for the racket-holding hand,and-3.36±2.39 and 1.22±0.93,respectively,for the non-racket-holding hand;the internal rotation’s CE,VE of the racket-holding hand was lower than that of the non-racket-holding hand,and there was a highly significant difference(P<0.01).CONCLUSION There was no correlation between muscle strength and proprioceptive function in the internal and external rotation of the racket-holding hand’s shoulder in elite Chinese male table tennis players.These results may be useful for interventions for shoulder injuries and for the inclusion of proprioceptive training in rehabilitation programs.
基金supported by the French Federation of Table Tennis.
文摘Purpose:The purposes of this study were to examine the trajectories of athlete burnout across a 2-month period characterized by high physical,psychological,and social demands to explore(1)whether several subgroups of athletes representing distinct burnout trajectories emerged from the analyses and(2)whether athlete burnout symptoms(reduced accomplishment,sport devaluation,and exhaustion)developed in tandem or whether some burnout dimensions predicted downstream changes in other dimensions(causal ordering model).Methods:One hundred and fifty-nine table tennis players in intensive training centers completed a self-reported athlete burnout measure across 3 time points within a 2-month period characterized by high demands.Data were analyzed through latent class growth analysis.Results:Results of latent class growth analysis showed 3 distinct trajectories for each athlete burnout dimension,indicating not only linear or quadratic change but also stability in longitudinal athlete burnout perceptions.Results also suggested that the 3 dimensions of athlete burnout did not develop in tandem.Rather,the likelihood of belonging to particular emerging trajectories of sport devaluation and physical/emotional exhaustion was significantly influenced by the athletes’perception of reduced accomplishment assessed at Time 1.Thus,reduced accomplishment predicted downstream changes in the 2 other athlete burnout dimensions.Conclusion:As a whole,these results highlighted that the multinomial heterogeneity in longitudinal athlete burnout symptoms needs to be accounted for in future research.
文摘Under the premise of fully respecting Technical Leaflet T3developed by the International Table Tennis Federation(I T T F),this paper proposes an effective method for testing the veer degree of the table tennis ball based on airflow suspension and machine vision.By sequentially capturing the images of the ball in the stable state of spinning and suspension,a set of fitting circle centres from different circular sections can be obtained by circle fitting through the least square method.The minimum circumscribed circle(MCC)diameter of these centres is served as a basic parameter to evaluate the veer degree of the ball.Experimental results show that this diameter can effectively reflect the veer degree of the ball.The method proposed in this papercan provide a technical basis for the veer online testing of the table tennis ball.
文摘The purpose of this study was to analyse and compare the match characteristics of wheelchair PTT （Para table tennis） classes that played in the team tournament at the Rio 2016 Paralympic. Eight PTT matches of each selected class （1, 2, 4 and 5） were analysed.The variables analysed were DR （duration of rally） and RT （rest time）. In observing the characteristics of the matches in Classes 1, 2, 4 and 5, the DR corresponded to 3.4 ± 1.2, 4.2 ± 1.5, 4.5 ± 1.6 and 5.2 ± 1.2 seconds, and RT to 13.8 ± 3.5, 14 ± 3.5, 13.3 ± 3.1 and 12.3± 3.3 seconds. In Classes 1 and 2, significant differences in DR were found, but none in RT （p 〉 0.05）. In the DR and RT of classes 4 and 5 there were significant differences （p 〈 0.05）. The results indicated that the DR in Classes 1 and 2 were different because of sitting balance due to severe reduction of function in Class 1 playing arm, interfering in the rally and rest. In Classes 4 and 5 the differences in DR and RT were caused by little sitting balance in Class 4. These characteristics should be used by coaches to check the disadvantages that Class 1 presents against Class 2, and the physical limitations of Class 4 that can directly influence DR in the team tournament against athletes with normal trunk muscle function （Class 5）. Planned training prescriptions between classes would aim at achieving better sport performance in training and team tournaments.
文摘The coordination abilities are closely related to the development of technical motor skills, where the player cannot master the technical skills in the special activity, in case lack of special coordination abilities for this activity. Many of table tennis experts agree on that the special coordination abilities for table tennis include each of： （1） the motor adaptation and adjustment ability; （2） the ability to differentiate; （3） reaction speed ability; （4） orientation ability; （5） balance ability; （6） coupling ability; and （7） the ability to sense the rhythm. The aim of this study is to design a training program to develop the special coordination abilities of table tennis and identify the impact of this program on the general skill ability for table tennis juniors. The researcher used the experimental method in two groups： One group is experimental group and another is the control group. The most important result of this study was the training program led to the improvement of the special coordination abilities of table tennis for the experimental group, which led to higher levels of the general skill ability in table tennis for the experimental group more than the control group.
文摘In addition to Natalie Du Toit, another female athlete has competed in both theBeijing Olympics and Paralympics. She is Natalia Partyka, a table tennis player whowas born without her lower right arm.
文摘GUAN Yan sat on the blue stand at Tianjin Stadium. Beside her were the members of China’ s National Table Tennis Team in purple sportswear. Looking at her, no one would associate this small, amiable, grey-haired old mother with the brave sportswomen and sportsmen, yet she is physician to China’s National Table Tennis Team. She has worked with them for 34 years, ever since the 26th World Table Tennis Championships. At that time she was 24 years old and a new graduate of
文摘At the request of the Chinese Embassy in Namibia,the Nanjing Municipal Government invited the Namibian Table Tennis Association to send a delegation to visit the city.Led by association President Ramon Hansen,the Namibian players received table tennis training from Aug 23 to Sept 5,2016.The delegation’s
文摘I had a pleasant Sunday last week.In the morning,I got up late and then began to do my homework.I spent nearly two hours on my homework.Next,I had fun watching a TV show.When my mom was cooking lunch,I cleaned the house and washed my clothes.In the afternoon,I played table tennis happily with my best friend Kou Yu.
文摘Many people play table tennis.You can also call it Ping-Pong.It is a fun game.How do you play?You need a table tennis table with a net in the middle.You also need a Ping-Pong ball,some paddles and a friend.First,hit the ball with your paddle.The ball goes over the net.Then your friend hits it back to you.Then you hit it again.The ball can move quickly!So sometimes you miss it.
文摘At present, with the increasing emphasis on physical education in China, colleges and universities have made further scientific and reasonable plans for the teaching content and system of physical education courses. Among them, in the teaching of physical education courses in higher vocational colleges, teachers in higher vocational colleges must also deepen the new concept of the integration of physical education and teaching, realize the innovation and reform of the physical education course mode in higher vocational colleges, explore and design a physical education course teaching system more suitable for students in the new era, build an ideal course mode, and realize the rapid development of the integration of physical education and teaching in higher vocational colleges. The integration of physical education and teaching is an important means to improve the quality of physical education in higher vocational colleges. Table tennis is deeply loved by most students, but it requires a learning process to master table tennis technology. In skill learning, demonstration actions are crucial. A good demonstration action can arouse students strong interest in learning and skill mastery. However, for various reasons in higher vocational schools, the demonstration and explanation actions of physical education teachers are not perfect. However, it is easier for senior professional table tennis coaches and athletes to teach students technical movements through their demonstration actions and their own experience of explanation. This requires the comprehensive implementation of the education policy of sports and education integration, and the adoption of "please come in and go out". Only by allowing more professional coaches and athletes to enter the campus, changing the teaching mode, innovating the education methods, and creating clubs, can we truly improve the quality of education and cultivate more and better craftsmen from large countries for the country.
文摘ONE STEP CLOSER Paris Olympic table tennis champion Ma Long runs with the torch during the torch relay for the 12th World Games on July 26 in Deyang,Sichuan Province.This was the first torch relay in World Games history.The 2025 World Games,running from August 7 to 17 in Chengdu,Sichuan,draws thousands of athletes from around the world to compete in 35 sports.The World Games,organized by the International World Games Association,is a multi-sport event held every four years in the year following the Summer Olympic Games.It primarily features competitions not seen in the Olympics,including American football and flying disc.
文摘【试题1】(命题人:李超群)Chinese table tennis icon Ma Long received the Outstanding Sporting Career Award from the Association of National Olympic Committees on Oct.30,recognizing his1_(exception)achievements and contributions to the sport.
