Why bunker long jump record will be so high? How do they dance?

Standing long jump movement, jump out of the performance is different also. So how to under the condition of invariable in physical quality, jump far? After teaching practice and exploration of the standing long jump again and again, some improved technologies and methods, received good results. Its practices are as follows:
A foot or two equal stance
For both feet, is often neglected. Sports teaching is divided on this question: some "two legs slightly points"; Some requirements "two feet and shoulder width apart. As to stand in what position, the teaching material has no specific rules, so most of the physical education teachers "eight" word station method. In the teaching practice, I find it difficult to grasp the scale, the latter is clear, but larger. My way is: two feet first station set up are posture, then tiptoe to support before, two feet with separate to two legs become parallel position in both sides. In this way, toes forward, c onsistent with the direction, at the same time two legs in a vertical position, basic does not produce Angle, and knee and ankle movement. And students can easy to learn.
Second, the motion of the arms with breathing
indoor swingarm and breathing with reasonable is very important. In the teaching, relax from down to up in advance when placing arm slowly on the head, follow easily breathe in, and then exhale on both sides by go up to the rear and two arms. When to jump before the two arms are quickly from down to up on the head, and now with the fast and deep breath with the hem on both sides to the rear, action as fast, but this is not out, but rather tight. This provides the maximum energy for muscle before takeoff, strengthen muscles takeoff of the instantaneous power.
Three, body center of gravity moved forward
In the teaching, my way is: before takeoff, as top-down to on both sides of the re ar two arms swing, leans forward, then the two arms QuCheng crouch position, heel lift, with forefoot grip, control the body balance, center of gravity shift. Although center of gravity forward isn\'t very big, but it is very important. So, you\'ll jump and do not have to power consumption as the center of gravity forward, create conditions for body above leaps forward.
Four, is the key
Jump when push the pendulum effect how, is an important factor to determine the body leaps far degrees. In the teaching, pendulum method of two arms coming up, I\'m not as simple as teaching material after the above put forward. Because that place only applies to two arms, and cannot drive the whole body. I adopt the high jump jump when two arm pendulum method, but the direction is not only upward, but above put forward. Jump, two feet with forefoot ground rapidly, at the same time, two arms made powerful swinging forward above on both sides, the above leaps forward.