The Research On The Function Of Swing Techniques In The Long Jump Take-off Process

With the breakthrough and the overall level continuous improvement of the long jump world record, people are growing to aware the main link of the take-off action in Long Jump off. And this conclusion has been confirmed by a lot of theory and practice sports. The take-off technology is accomplished by the take-off leg of the buffer and kicking with the effective swinging of the swing action.By the consulting and analysis of the literature, it is found that the long jump takeoff research mostly concentrated on the take-off leg in jumping phase of the effects and the impact on sports performance in domestic and international As for the swinging, particularly the hipping in Takeoff is not aroused enough attentionIn fact, the swinging movement of the take-off leg plays an important role in the coordination and cooperation. As the former Soviet Union, leading biomechanics expert chupa had pointed out a lot of practice that: The long jump take-off leg in the process of kicking force 60-70% of the total value of the force from the swing link, and, the greater the swing speed, the greater the corresponding take-off power, the better off effect.The modern long jump player is approach the fast aim and the technical style of the positive take-off. Currently, Long Jumpers in the run-up speed has reached10.65-11.25m / s in the final 10 meters length, the high-speed run-up in such a situation, if you want the level of achievement in the long jump a new stage to further improve athletic performance and challenge the human limit, it is the key that the unit of the instant put off technology and coordinated force.Therefore, the study on kinematics characteristics of the takeoff in process of swinging summarize these technical details to have a complete theoretical significance of the research results, This study selects the participator in October 22, 2009, held in Jinan, Shandong China top eight men's long jump eleventh Games athletes as research subjectsUsing literature data and mage capture, image analysis method and the statistical methods and other research methods, the analytical analysis results show that:1. The swing Arm technology, hip movement and leg swing movements is throughout the whole process of takeoff. As the decisive role, they will improve takeoff performance.2. The elite Men's long jumper take-off stage in the average is swing speed of 868s. it affects the vertical take-off speed, speed and the initial athletic performance.3. The horizontal speed in buffer stage has small impact on the leg speed.4. The tip swing leg-side delivery and brake before the inertial force generated will help improve the take-off effects5. the Elite Men Long Jumper is a board off leg angle greater than the world's best player, with better forward of the body6. the Long Jumpers moment in the plate angle between the two legs is too large, they can not play well during the swing leg in the role of take-off and affect the take-off range of motion. In the angle between the thighs from the boards have two smaller, resulting in lower take-off range of motion.7. the Elite men's Long Jumper in the Takeoff Leg angle experience the greatest increase ---- decrease, and its features are compatible with the principles of biomechanics.8. the hip flexor muscle training, especially training of not being taken seriously, yields the strength of weak hip muscles.9. the board instantaneous speed of the swing leg in front plate angle and height of the buffer stage increase the value of the physical center of gravity, the center of gravity velocity , leading in a direct impact on the added value.10. Arms swing the body is important to maintain balance and increase swing speed of swing leg11. Arm swing action is matched with the stomp off action, and then they two can perform well in takeoff process.