Experimental Study On The Effect Of The Run-up Speed On The Success Rate Of Fosbury Flop

Research purposes: Currently, Fosbury Flop High Jump Technical Teaching and Athletic Training, there is a large difference between the two, Fosbury Flop Teaching innovation is not enough, more attention to the form of the action and appearance, to learn to ignore the same technology and sound technology importance. Professor of technology and the formation of what technical style, two aspects become disjointed, focusing on the appearance of the correct action "exemplary", while ignoring the practical and competitive, we believe that this trend continues, that there are long and short term worries, and no cater Fosbury Flop technology trends, with no less than the corresponding pedagogy, innovation and explore, this situation should be changed as soon as possible.Methods: According to the Xi’an Institute of Physical Education Department of Physical Education 2013 students Fosbury Flop arrangements syllabus and processes, October 2014 to November with cluster sampling method to select the Department of Physical Education 2013 six classes(boys class) as experimental study. Using literature data, experimental, mathematical statistics and so on High technical movements subjects of high-speed video capture and use APAS software to parse out the relevant kinematic parameters.The results of the research:1. formal teaching experiment by Fosbury Flop learning technology comparison and analysis, it can be seen in the experimental group of students and Status Examination Results significantly better than the control group, there are significant differences.2. In the run-up take-off stage: the experimental group after a four-step approach speed, step down speed than the control group, there are significant differences; the experimental group down two steps and down a step length than the control group, the experimental group and the top second step off the ground take-off leg ankle moment angle, swinging leg ankle angle is more conducive to the ground instantly jump; jump shorter in the experimental group than the control group, Teng initially faster than the control group, with significant differences.3. The experimental group compared with the control group jump kicking stage, the experimental group take off from the ground instantaneous center of gravity height, jump kicking at the ankle, knee, hip angles were better than the control group, the focus began to take-off speed level, take off from the ground instantaneous vertical speed, speed conversion rate is better than the control group.4. The experimental group vacated the body center of gravity height h2 is greater than in the control group, and the value of the body weight and the bar is less than the vertical distance h3 is less than the control group, and there are significant differences.Research conclusions:1. After the experiment teaching of subjects through skills assessment and compliance analysis results can be seen, the use of "rapid run-up starts at the core- to improve the Fosbury Flop over the bar effect" in the teaching of teaching methods, it can get better teaching.2. In the teaching methods designed to meet the high jump at a speed of technology as the core of mainstream development trend, firmly grasp the speed of rotation perpendicular to the horizontal velocity as the core teaching approach allows students to achieve fast, jump fast teaching effect, play the Fosbury Flop speed advantage.3. After the jump around the body along the longitudinal axis of the body forming the back bow posture and maximum horizontal rotation, and the location and direction of the swing arm two key teaching philosophy, Transformation jump vacated height increase over the bar effect, improve performance, teaching effect significant.4. The value of the experimental group the body weight crossbar vertical distance H3 is significantly less than the control group, suggesting new teaching techniques in the student over the bar to control the position and direction of the arm can get better "back bow" position, play a liter "hip" role in raising the height of the relative height of the body over the bar when a greater extent use H2 to improve over the bar effect.