Research On The Technical Characteristics Of The 66kg Champion And Runner Up Of The National Men’s Judo Championship Before And After The Change Of Judo Rules

Judo is a highly technical and competitive sport.After continuous development,judo has gradually become a mature sport.In this study,the characteristics of technical application of 66 kg men’s judo champion and runner up athletes before and after the change of judo competition rules in were taken as the research object.The rules of judo competition in 2015-2018 are divided into the old and new rules,among which the rules used in 2015-216 are the old rules and the rules used in 2017-2018 are the new rules.Taking the 66 kg champion and runner up of the 2015-2018 National Men’s Judo Championship as the investigation object,this paper studies the technical development characteristics of China’s men’s 66 kg champion and runner up before and after the change of judo rules.The results show that:(1)Under the old rules of judo,Chinese men’s Judo 66 kg champion and runner up athletes mainly use the throwing technique,the success rate of the throwing technique is not high,all of which are below 30%,and the main use of the throwing technique is the bar throwing and the inner stock.Under the new rules of judo,Chinese men’s Judo 66 kg champion and runner up athletes’ rhythm of the throwing technique stage competition is obviously accelerated,the using rate of the throwing technique is always high,and the success rate of the throwing technique is guaranteed Holding at about 35%,the use of throwing technique is single,and the use rate of carrying throwing technique is the highest among the 66 kg male champion and runner up athletes.Under the new and old rules of judo,there are common problems in the use of athletes’ throwing techniques: the timing of technique application is not accurate,and the success rate of movements such as inner stock.(2)Under the old rules of judo,the use of sleeping techniques is increasing in the competition of 66 kg Male Judo Champion and runner up,the success rate of sleeping techniques is decreasing year by year,and the sleeping techniques are mainly shoulder fixation and Cross Square fixation;under the new rules of judo,the number and success rate of sleeping techniques of 66 kg Male Judo Champion and runner up are decreasing year by year,the success rate of sleeping techniques is low,and the athletes compete every year Under the new rules,the athletes’ consciousness of using the technology is not strong,the technology is single,and the characteristics are not prominent.(3)Under the old rules of judo,the liaison technique was used between 5 and 8times in the competition of 66 kg Male Judo Champion and runner up,and the form of liaison technique was rich.The technique of "throw + sleep" was the most common and the highest success rate in the competition.Under the new judo rules,the number of use of the liaison skills of the men’s Judo 66 kg champion runner up athletes in China is significantly reduced compared with the old rules,showing a trend of gradual reduction.