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Excellenthigh Jumpg Athletes Huanghaiqiang Two Step Apnroaeh, Jump And Pole Technique Kinematics Analysis

Posted on:2013-01-27Degree:MasterType:Thesis
Country:ChinaCandidate:C S YangFull Text:PDF
GTID:2267330395491116Subject:Physical Education and Training
Abstract/Summary:PDF Full Text Request
The high jump in the new China sports have very brilliant history, fully showing the world the new China exuberant vitality, with table tennis, spirit of old women’s volleyball team together for the political diplomacy made due contribution. High jump in China once had three times world champion and world record. In1957, Zheng Fengrong uses the shear type high jump technology to1.77m achievement to break a world record, as the history of new China’s first set a world record in track and field athletes, for the high jump in China in the world and create brilliant open up a precedent; In1970Ni Zhiqin using the straddle technique, by2.29M result break the world record for the high jump in China, and the emergence of new leap; ZhuJianhua2.37M,2.38M and2.39M three to break the record, as well as in the1984Olympic Games, Chinese athletes won third, seventh and eighth impressive record, it is our country the high jump into the peak. But as the old players retire in succession, young athletes’ fatigue, high jump in China dropped into trough, lost in the past the color of the wind. Therefore, to make our country high jump again brilliant, must be of high jump technique, theory and training methods to conduct in-depth analysisDiagnosis and analysis of Chinese elite high jumper Huang Haiqiang two step approach, jump and pole technique to improve sports level, Huang Haiqiang has important significance to improving our country, even the men’s high jump athletic level have referential significance. Huang Haiqiang at Xiaoshan training base training jump as the research object, using the method of literature, mathematical statistics, consulting interviews, comparative analysis and three-dimensional video analysis method to analyze. The results show that:1take-off before swinging leg support technology is the key of take-off technique, step by step down, run-up speed, maintain and improve the effect of takeoff play important effect.2Huang Haiqiang two strides of run-up speed than the skip2.32m has improved, but compared with foreign excellent athletes still exist bigger difference. Jump with instant VZTD is0.1M/s, then the body center of gravity vertical velocity is positive, mainly with inverted step step less directly, but stride bigger, body centre of gravity is inevitable in the lower position, the takeoff leg with instantaneous center of gravity of the body will have a downward vertical speed; in addition to the swinging leg "strong support", pushing the body center of gravity forward fast ability weakly related.3of swing leg in instantaneous, a place to the body cm horizontal distance is large, leading to loss of the larger horizontal approach speed. From the moment of swing leg, ankle push-off inadequate. Swing of swing leg is not very active, take-off leg touchdown instant, two thigh angle is larger, and the angular velocity is low, small amplitude of swing leg, below the horizontal surface at an angle of9.2degrees, to a certain extent in the vertical force on the ground and take-off end instant of body center of gravity height. 4arms swing speed is low, slightly higher than the domestic players and foreign elite athletes, there is still a big gap. The takeoff leg side shoulder above the swing leg side shoulder0.08m, who is from the moment, to the rod body tilt of5.11degrees, causing the main reason of eccentric takeoff.5take-off leg from knee moments stretching effect is very good, but the hip, ankle push-off effect, which is the H1small main reason. Takeoff foot touchdown instant, leans back angle is not enough, large inclined angle. Take-off leg, from the moment of delta LR is too large. This and the leg part strength weak, because the take-off weight reached the highest point for a short time, so the jump must produce greater angular momentum to ensure that the bar needs.6take-off effect is not good, the low conversion rate of speed. Huang Haiqiang the vault vertical velocity is only4.23M/s, is the leading cause of H2is small, only the main reason2.14M achievement.7Huang Haiqiang rod technology is poor, H3-0.07m, there is a certain potential. In conclusion we should emphasize the high jump athletes’speed quality; development of ankle joint strength and the range of activities; development of the hip flexors strength, improving takeoff phase leg swing speed and swing; stressed but two leg swing" strongly supported", promote the rapid advancement of center of gravity of the body the ability and the consciousness of culture; the development of upper limb girdle muscular strength, improving upper limb swing speed and swing, and emphasizes the take-off leg from the moment of swing leg side shoulder higher than the takeoff leg side shoulder; increased take-off foot landing stage of the braking effect, help to improve the speed of conversion; development of physical flexibility, raising rod effect.
Keywords/Search Tags:Fosbury Flop High Jump, HuangHaiqiang, Approach technology, Jumping techniques, Cross bar technique, Kinematic parameters
PDF Full Text Request
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