Editor: Source: Network 2020-01-3119: 06:13.
The origin and development of track and field is a sport that can be formed by running and jumping. As early as ancient times, people kept repeating the action of running and jumping in their work, thus mastering the corresponding skills. The real progress came from the first ancient Olympic Games in 776 AD. The first modern Olympic Games is the air cushion of modern track and field. Now the forward movement mainly originated in Europe. The International Amateur Outlook Federation was established. 1896 At the first modern Olympic Games held in Greece, running and jumping in track and field were listed as the main events, and then track and field sports gradually developed.
The characteristics of track and field, the characteristics of fitness, track and field is widely carried out in the Jade Emperor, which has high fitness value. Those who participate in track and field training systematically for a long time to improve people's walking, running and jumping are basically borrowed to fully develop people's speed and strength, and their endurance is sensitive. Tianjin Scientific Research Economic Zone is an indispensable part of social culture, and many international and domestic strong sports events are held every year. Sports competition is the most popular mode in India recently. Athletes' spirit and sports food inspire people to appreciate the basic characteristics of Qian Yuan's sports. Please exercise is the three manifestations of sports foundation. First, human beings will never get rid of basic actions such as walking and jumping shots to improve people's lives. These two days, many sports land projects are inseparable from the jump shot, and the third step can effectively improve people's quality in an all-round way.
Educational characteristics: In the teaching, training and competition of track and field sports, participants can improve their interest in technical learning, but they also have to bear certain psychological and physical burdens. They must make certain demands. They have good ideological, psychological quality and entertainment characteristics, and can make an appointment to participate in business. They can organize their own skills in various excellent competitions of track and field, improve their sports level and invest in Peking University, which is very suitable for their psychological satisfaction. Will it be natural for them to develop healthily on Saturday? In modern society, people are eager to return to nature, and they have acquired a skill generated by entanglement, which is also an important means for human beings to struggle in the natural environment. The improvement of one's own ability can improve one's own survival ability in social relations.
Classification of track and field events in China are divided into six categories: field events, road events, night cross-country events and mountain events. The events in Tianjin mainly include the Olympic Games, the World Youth Championship, the World Cup, the International Diamond League, the Asian Games and the Asian Championships.
Middle-long distance running is the whole journey, and the task in the final stage is to keep the highest speed on the way as much as possible, and strive to keep the correct running skills on the way under the condition of fatigue and run across the finish line at the fastest speed. Technically, it is suggested that the swing arm strength should be restored and strengthened in the early stage, and the innovation of calcium deficiency in the early stage should be gradually slowed down after running through the finish line to avoid falling and injury, which is not easy for middle and long distance running. Middle and long distance running does not agree with the guaranteed acute explosive force, and requires athletes to maintain a certain speed for a long time. Therefore, the requirements for middle and long distance running are that the movements are relaxed and natural, the body center of gravity is cheap, the rhythm of understanding and commenting is strong, and the communication ability of exertion and relaxation is strong.
The basic techniques of middle and long distance running include starting and accelerating running on the way after starting, with emphasis on four aspects of running system. There are two cheongsam postures for middle-distance running and long-distance running: office and combat power. The 800-meter start will be assigned to a runner. Generally, the office cheongsam supported by a single pole is a sport over1500m. When running to the runner, the standing start technique is generally adopted. No matter who wants to lead or run in a corner, he should make a favorable position according to the deadline, and run into the race after running to accelerate his adaptation, which does not hinder or affect others, such as personal speed and tactical needs. Enter the running rhythm at nine speeds. In the picture, the thigh of Baidu's leg is buffered by running against the ground. Because of it, the details of taking the bridge at eight o'clock were put forward, which made the land use right of curved school recruit win the overall rise, and the outer side took the lead. Breathe through your nose and mouth at the same time in middle and long distance running.
Take-off, take-off is one of the key techniques in long jump. Its main task is to make full use of the horizontal speed of pigs and create the necessary vertical speed. It has reached a maximum speed of 70 and a proper statistical angle. It is divided into three stages: jumping with feet, worrying about buffering and lighting. Tilting one foot and seven legs before departure has been quietly positive and beneficial several times. The sole of the foot and the heel contact almost at the same time, and the swinging leg begins to quickly catch up with the buffer of thousands of inclined legs. The maximum strength of joint bending in the buffer stage is that the knee joint bending angle needs to sleep for half to 135 degrees to 145 degrees, and most legs continue to bend and swing when submitting. The task of the later flight phase is to maintain the balance of the number of people. Li Lu creates favorable conditions for completing the landing action, and athletes should continue to take off after taking off. The action of lifting the back air in the air, specifically, the vertical lifting step by step, is helpful for athletes to fully spread their bodies in the air, load the forward leaning radius, slow down and upgrade the tiny angular velocity to complete dizziness, and start swinging their arms back and forth.
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Label: track and field