Three Dimensional Kinematics Analysis On The Swing Leg Support Technique Before Taking Off And Take Off Technique Of Chinese Elite Male High Jumper

High jump was once a piece of advantage track and field sports events of our country. Our country have three people five differences adopt three pole technology break history of world record once. In 1957, of our country famous athlete Zheng fengrong , high jumper of woman , adopt scissors high jump technology by 1.77 meter scores break the world record, thus shaken the world field circles. In 1970, of our country famous athlete Ni zhiqin , high jumper of man ,adopt straddle high jump technology by 2.29 meter scores break known as " astronaut " the former Soviet Union Brumer's world record. In 1983-1984, of our country famous athlete high jumper Zhu jianhua adopt Fosbury Flop technology by 2.37 meters ,2.38 meters,2.39 meters of achievement, have obtained and broken the glory military success of the world record for the third time in succession within one year , thus shaken the international field circles again. From 1981-1991 being during the decade, of our country man whole strength of high jump keep the position that leads definitely in Asia.But with Zhu jianhua and others old athlete in succession ex-service , man high jump sport of our country enter stagnate , situation of gap between generations gradually. Especially since the beginning of the 1990s, the man's high jump sport of our country went from bad to worse, among match defeated by stature than we short and small Japan and S.Korean subordinate time and again unexpectedly. This kind of state makes every domestic figure in the sports world feel sorry and regrettable invariably ! Factors which presents this kind of state are in many aspects, among them there are questions , such as question which shrinks of the high jump team, a construction of coach's team of the high jump team , cultivation of high jumper's reserve force ,etc., all these are problems of management of systems. But relatively backward high jump technology is the important factor of restraining man's high jump achievement of our country from improving further. According to the wholecountry full-length match in recent years, much high jump athlete's approach run and take-offing discontinuously, it take-off stage pedal leg not stretch abundantly and insufficient swing,so the vertical to take-off getting worse relatively in result. For make further research and discussion to present of our country outstanding man question that high jumper is appear technically, technology that this literary makes a video recording with the three-dimension, use two high-speed camera to participate in national track and field that is hold in Shijiazhuang championship up to standard to have a match and urban games up to standard of outstanding man that have a match will it be August 2003 the high jumper shoots the scene, use the outstanding sports video reponse system of the AJJIE to analyze, according to the technological principle of the track and field, sport biomechanics, sport anatomy , sport physiology ,etc. relevant discipline theory swing to high jump the last of approach run leg support technology and take- off technology go on research, try hard to find out the disparity between the question that our country athletes are existing technically and foreign topnotch athletic , make correct technology and diagnose , put forward the rationalized opinions and suggestions , train practice and offer reference and consult for the movement of high jump of our country.The main research approach that this literary uses has: l.Law of documents and materials; 2.Expert's interview law; 3.Three-dimensional video analytic method ; 4.Statistic law of mathematics and physics;The result of study of this text shows :1. The last of approach run swing leg support technology to finally step by step long , approach run speed keep and full play there is important influence.2.Putting foot technology is it take-off buffer result of leg to influence when take-offing, influence horizontal kinetic energy of approach run to take-off leg extensor elastic transformation of potential energy; Take-off stage part is it take-off...