Research On The Kick-off And Speed-up After The Kick-off Of The 60-meter Straight In The Single-bamboo Drift

Single bamboo floating is a unique folk stunt originated in Chishui River Basin.In2011,at the 9th traditional sports meeting of ethnic minorities,the sport of bamboo drift was included in the competition for the first time.The 60 meter straight track race is an important item in the single bamboo drift movement.There are few documents about the 60 meter straight track race of the single bamboo drift.In this paper,Nong Shujian,the champion of the 60 meter straight track race of the single bamboo drift in the 10 th National Minority Games,and his teammate Yang Wencai are taken as the research objects to study the start and acceleration of the 60 meter straight track race of the single bamboo drift In order to achieve good results in the competition,we should make scientific analysis,refine key technologies and assist athletes with scientific training.The main research methods used in this paper are literature analysis,video analysis and mathematical statistics.It is found that the key technologies of the speed starting and the acceleration after the starting are as follows:1.Start stroke Technology:(1)Suitable position: the single bamboo drifter stands in the second half of the middle section of the single bamboo drifter,with the head almost floating on the water surface,so that the resistance of the water to the bamboo drifter is small during the navigation,which is the appropriate position.The proper station can be the first step of the key to the 60 meter straight track speed race;(2)Good floatability: in the 60 meter straight race,the single bamboo bleacher needs good floatability.The excellent single bamboo bleacher can make pole movement and maintain basic stability when the referee issues the "preparation" command.When the referee issues the "stroke" command,he can make the action of inserting pole into the water in time,that is to say,he has good floatability.Good floatability is helpful for athletes to play their own strength stably in the competition.(3)Pole Technology: it is a good pole technology to be able to stand up the pole,be close to the vertical with the water surface in the process of rowing,and keep the balance and stability.2.Accelerated stroke technique:(1)Frequency of rowing: in the 60 meter straight race,the better the frequency of rowing in the first cycle and the effect of rowing,the higher the quality of accelerated rowing;(2)The rhythm of pole stroke: the better the speed-up stroke rhythm after starting stroke,the greater the favorable conditions for the final good ranking;(3)Strength: the weight and strength of the single bamboo bleacher also have a great influence on the starting and accelerating stroke techniques.The same weight,standing in the second half of the sanding surface of the middle section of the bamboo bleacher,has a smaller stroke resistance and better effect;the single bamboo bleacher has a strong demand on the lower limb strength and core strength of the body;in general,the weight is small and the strength is large,which is more conducive to improving the speed.In addition,the athletes need to make appropriate technical adjustments according to the external environment,because the sport is carried out in the outdoor environment of the natural waters.Weather factors such as wind and rain,water quality in different places,geographical location and so on will affect the sport.Therefore,making corresponding technical adjustments in different environments and situations is also the sport Necessary skills for athletes.