Analysis Of The Speed Phase Characteristics Of Women's Team Pursuit Project In High Level Track Cycling

Recent years,China women's track cycling of short distance has constantly got good grades in the world competition,especially in the Rio Olympics,the representatives of China Gong Jinjie and Zhong Tianshi win the champion in the Woman's Team Pursuit which means China got the first Olympic cycling gold medal in history.And this amazing achievement will also promote the development of cycling in China.Compared with the women's good grades in short distance cycling,women's medium-and-long distance team pursuit still has a long way to go.In order to fully develop track cycling and enrich the theories of training and practice,this paper gives a comprehensive analysis of the women's team pursuit in total 13 competitions from 2013 to 2016 in the games of the World Championship,the World Cup and the Olympics.And this paper finally chooses the top eight in the games of France World Championship in 2015,UK World Championship in 2016 and the 2016 Rio Olympics as its objects of study.By using the methods of documentary and expert interview,this paper discusses about the speed phase of women's team pursuit in high level track cycling and divides the speed phase into three stages: the start-up phase(from starting line to 1000 meters),the retention phase(from 1000 to 3000 meters)and the sprinting stage(from 3000 to 4000 meters).Using the Dartfish,a kind of diving sports video analysis software,this paper analyzes the segmental time and speed of the three phases and makes a contrastive analysis of the three speed influencing factors including: the cycling track,the cycling posture and the change of lanes and in the end summarizes the tactical characteristics of the top eight teams.By creating a formula,this paper set a form to evaluate the best time and speed and the influencing factors of the speed phase of women's team pursuit in track cycling hoping to provide supporting theories and reference data for China's training and competitions.And the results of the study are as follows:1.The world's top three countries,in addition to the decline in the performance of the Australian team,the British team and the U.S.team's performance,speed significantly improved,and the speed of the game in the past stages have a greater change,and there is a strong regularity.The impact of factors,the British team and the Australian team throughout the ride track,maintain a good attitude,and play a good riding skill,Team USA is slightly undulating;top three countries have the same rotation times,and there are clear tactics.2.The fourth-eighth countries in the world,the Canada team,the New Zealand team and the Italy team's performance and speed significantly,the Chinese team and the Poland team are not significantly improved.The impact of factors,the Canadian team and the New Zealand team throughout the ride track,maintain a good attitude,a number of rotation with the world top three countries;the Chinese team,the Italy team and the Poland team's riding skill are improved,but poor stability,keeping the stage end and the sprint order is especially prominent;the Canadian team,the team New Zealand and the Italy team are clear about the next player team tactics,but Chinese team and the Poland team's tactics are not clear enough or poor execution.3.Calculate the women's team pursuit velocity stage's the best time,speed mode by velocity formulas,and make the world's top eight countries three best original score compare with their best speed time and velocity models,then do the back substitution test,the results prove that the best model construction is reasonable,can accurately predict the time and speed of each stage,can apply to the actual training and competition;finally,analy the influence factors of speed variation stage,and developed a riding track,riding posture and rotation best pattern,provide the reference for the Chinese team.4.There is still a certain gap between the Chinese team and the best time,speed mode and influencing factors.The open questions of the Chinese team : Competitive state unstability;riding skills poor;Tactical arrangements not clear or lack of execution;speed endurance low;lack of indomitable spirit.And suggestions that focus on strengthening basic training,athletes pay attention to personalized training principles;strengthen riding skill training,clear tactics;change training methods,improve the level of physical function;pay attention to daily life care,strengthen the occupation consciousness and spirit of ideological education.The China team performance during the entire speed change in the start phase of the second ring reach speed's variation characteristics after gradually slowing down the speed,the China team meets their needs,in addition,the competitive level of play what kind of effect,these are yet to be further studied.