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Charge, leap, leap into the air.
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Writing ideas: You can write about the long jump of your classmates, or you can describe the scene of your own long jump, such as "I" rolled up my long sleeves, pushed up hard, exposed my elbows, pulled my shoelaces hard, squatted half, opened with a stride with my right leg in front, rushed forward like flying, etc.
Text: I rolled up my long sleeves, pushed them up so hard that my elbows were exposed, and pulled the laces hard to make sure that the static friction of the laces was enough to prevent them from loosening halfway.
I took seven or eight steps back to the jumper, took a deep breath of tense air, and my heart pounded, so much so that my whole body shivered as if I was cold.
I looked at the bunker and swept the sand in front of me with my foot to avoid the rolling friction of the sand from causing me to fall or cushion the inertia as I flew out.
Ready, I patted my chest, squatted half, opened with my right leg in front of me with a stride, and rushed forward like a fly. At that speed, the three-dimensional world in front of me suddenly turned into a two-dimensional world, and the people on both sides ran towards me with phantom-like tails as if they had drawn them with a pen and rubbed them with their hands.
I controlled my strength, my right foot was just at the starting line, the leg muscles were tense, and the inertia of my weight of more than forty kilograms made me fly out like a small cannonball along a quadratic parabola, and I soared to the top of the apex of the parabola y=k. At that moment, time, air, and the movements of the people around me seemed to freeze, and even my breathing slowed down, and I felt my body rubbing against the air as if I was in water.
I tried to lean my feet forward so that the inertia of my body could be used better, and with a muffled "whew", I fell into the sand pit like a point on a parabola falling on the x-axis, and a small pit appeared in the sand in an instant, and the sand flew radially in all directions.
Four meters six six! The referee shouted.
Wow" The people around me also exclaimed, looking at me strangely, as if I had done something strange. The referee also nodded and whispered; "Well, this one is a good jump. ”
At this time, the classmate who chatted with me first looked at me with straight eyes, patted me on the shoulder and said, "You also said that the jump is not far, you can joke with me" I smiled and turned to leave.
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The long jump is composed of four parts: running, jumping, taking off and landing. They are a complete unity. Therefore, the key to the long jump technique is to correctly complete all parts of the long jump technique and realize the organic combination of all parts of the action.
The starting position of the run-up directly affects the stability and accuracy of the run-up. There are two starting postures for running: one is the "half-squat" starting from a stationary state and generally using the "half-squat" posture in which the legs are slightly bent and the feet are parallel to the left and right, or the "standing" starting posture in which the legs are separated from the front and back.
The other is to take a few steps or jump steps combined with stepping on the first marker point and starting between the marches.
Jumping is the most crucial part of the long jump. Imitate take-off exercises in situ. Stand with your feet back and forth, swing your leg in front of you and bend your knee slightly, take off your leg in the back, and your weight on your front foot.
At the beginning of the action, swing the leg to push the ground, and the jumping leg actively steps from back to front, imitating the pedal action of putting the foot down, rolling the whole foot to the ground, and then cushioning and pushing to stretch and jump, while the arms should actively swing with the action of the legs.
Running and jumping exercises throughout the process.
Running and jumping exercises throughout the process. This kind of exercise should first determine the distance of the whole run according to the actual situation of each student. Students do a 40 to 50-meter sprint on the track, measure the distance where each person is at their maximum speed, and find the footprints of their jumping feet on the ground during each sprint.
After a number of exercises, you can roughly determine the full running distance that meets your own reality, and use this distance to carry out running and jumping exercises on the long jump track, and after appropriate adjustments, the whole running distance can be determined. Record this distance measurement with a steel ruler. In the future, you can run and jump the whole distance according to this distance.
During the whole run-up and jumping exercises, attention should be paid to the way and posture of the run-up and starting should be fixed. The run-up should be fast and relaxed, run in a straight line, stable and rhythmic, and when jumping, it is necessary to do the swing (swing arm and swing leg), kick (jump leg pedal extension), stand (chest up), pull (waist), top (head) and all aspects are coordinated and concentrated.
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The action is described as follows:
He has his feet left and right, shoulder-width apart, and his arms swing back and forth. When swinging forward, the legs are straight, and when swinging back, bend the knees to lower the center of gravity and lean the upper body slightly forward. Then kick the ground quickly and hard with both feet, and at the same time swing your arms slightly bent from back to front and upward, and jump forward and up to take off.
He pushes quickly and powerfully, and his legs and hands are in harmony. With a strong jump, he jumped over the three-meter line.
When you land, stretch your calves forward and swing your arms back vigorously to land with your knees bent.
Precautions for practicing standing long jump
1. Try to choose a flat and not too hard ground for practice, such as pavement, land, floor, sand pit, etc. Overly slippery ground is not suitable for practice.
2. For exercises to improve explosiveness, the number of repetitions is generally not more than 10 times. For exercises to improve strength and endurance, the number of repetitions must be more than 10 reps and increase the number of repetitions as much as possible.
3. In the standing long jump, the angle of several body-related joints (8 angles) from the take-off jump to the moment of landing plays a pivotal role in the long jump performance. The forward bending angle is too small, which increases the sense of weightlessness, and forces the silver beam to make the human body fall prematurely. The anterior extension angle is the angle between the calf and the thigh before landing, the calf extension will increase the distance, and the larger the calf extension, the better.
These two corners not only affect the quality of aerial action, but also have a direct impact on the landing angle. The landing angle has an impact on the performance, and on the premise of maintaining the balance of the body, it is better to have a small landing angle.
4. In practice, only by grasping the two main contradictions of strength and technique, paying full attention to strength exercise, constantly improving technique, and organically combining the two, can we continuously improve the performance of standing long jump.
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The description of the long jump in the sports meeting is:
1. Started, the first is the sports committee of our class, a tall man with long legs, I saw him accelerate from the starting line, bounce lightly a few times, brush, leap out from the starting point, and landed steadily in the sand pit 9 meters away.
2. Get ready and start jumping! The teacher waved his hand, only to see him hunched over, his hands clenched into fists, and his eyes staring ahead. Suddenly, he shook his head sharply, took a big stride, and ran like arrows, which were faster and faster, and in a blink of an eye he reached the stepping board, and with a sharp leap, his legs stretched forward, and made an arc in the air, and landed in the soft sand.
3. This afternoon, the frightening moment has arrived, and the long jump competition has begun! The shouts came one after another, and then, the boys' competition began! I watched from the side, only to see them leap up from the ground like a running cat, and land on the ground.
There was a boy in the fourth class who jumped 1.80 meters, and the whole scene couldn't help but let out a burst of admiration.
4. It was the turn of the female classmate, I was a little nervous, and soon, it was our turn to be in the class, I jumped, jumped 1.46 meters, I comforted myself not to be discouraged, continued to work hard, and sure enough, the second jump was much better. Although I didn't get a place in this competition, I believe that I will work hard and one day I will surpass him.
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The running like an arrow from the string, the jumping like a grasshopper, and the walking performance in the air caused bursts of amazement, and the moment you landed, you felt the softness of the sand.
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1. Standing at the long jump board, you suddenly exert force, jump forward, ah, that action, teach people to be very happy, unable to control themselves, with both feet on the ground, a beautiful "rainbow" was produced, this is the success of the jujube bridge frolic, this is the dedication of love.
2. The running like an arrow from the string, the grasshopper-like jump, the walking performance in the air, causing a burst of amazement and friendship, the moment you landed, you touched the softness of the sand, No matter what, the honor will always belong to you.
3. You are like a light deer, running among the sand pools that point to victory. Once, twice, what will not be extinguished is the confidence of your stool to triumph.
Finally, after that thrilling moment, you smile triumphantly.
The movie "Running Out of a Blue Sky".
1. The sports meeting was crowded, like a colorful flag fluttering in the wind, like a wave of wheat chasing the wind. "Come on! Come on There was a loud cheering sound from the venue, and I saw the athletes gritting their teeth, their faces flushed, their hands clenching the baton, and their eyes fixed on the red cloth strip at the finish line. >>>More
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