After Su Zu returned to the sports school, he barely had time to catch his breath before he was pulled to the track and field by Zhuang Tao.

The Provincial Youth Track and Field Invitational Tournament in April this year is imminent, and it is now mid-February, and it is just over a month before the start of the invitational tournament.

Zhang Quanshan and Yuan Chengmin are okay, they have been practicing under Zhuang Tao for a year or two, and they don't have to worry about participating in the 200 meters and 400 meters at least in terms of basic running skills.

It has only been more than two months now, and the most practiced in the past two months is the basic content of physical strength and explosiveness, and the skills in running are still a lot worse.

For the rest of the time, you have to strengthen it anyway.

The age limit for athletes participating in the competition is 17 years old, and Su Zu's age is not a problem, he is only 15 years old. Zhang Quanshan is one year older than him and is also in range. Yuan Chengmin's words can catch up with the time, he is born in May, and he will be over age in another month.

In fact, it is normal for athletes to change their age and reduce their age by one year or two, but it is just a provincial youth invitational tournament, and no one is using their brains in this regard for the time being. If there are some competitions in the future, the personal results will gradually rise, and there may be some operational links.

In this trial within Su Zu's team, Su Zu's 100-meter performance improved unexpectedly well, which was mainly for Xie Caiwen, who dug him. In fact, in the sprint team, whether it is the team members or the coach, almost every day there is a feeling that this kid is always improving.

The 11.21 seconds recorded by the 100-meter Suzu runner won the quota in first place. The 200m ran 23.45 seconds, half a position faster than the second-place Zhang Quanshan of 23.58 seconds. 400 meters, the same group of runners only knew that there were 4 people in front of them when they crossed the line very tightly, Zhang Quanshan Su ancestor crossed the line behind, followed by another team member and Yuan Chengmin, after the coach and assistant coach recorded, there was no mention of the ranking and results of this group at all.

However, there is only one quota for each event, and in this case, it is not possible to go to one athlete and cover all three events. Let's divide the cake and choose one person.

Su Zu and Zhang Quanshan's 100-meter and 200-meter results are also obvious to all in the team's test, and Yuan Chengmin's 400-meter qualification is somewhat controversial.

In the playground track of Jianping Sports School, the other members of the sprint team have not returned to school at this time, and only Su Zu, Zhang Quanshan, and Yuan Chengmin are training.

In front of the starting line, in the sound of a whistle, several people moved when they heard the sound, and the footsteps sounded rhythmically.

Zhuang Tao's special training for Su Zu is the running posture, mainly the swing of the running body, as well as the fixation of the swing of the arm.

Why is it said that after professional training, the performance speed can be improved quickly, aside from the hard power of physical explosiveness, but the improvement of movement skills is a big one.

If you notice that ordinary people run fast, you can find a characteristic, when they run and swing their arms, it is actually very non-standardized, and in running, there are often changes that are too large or too small.

Athletes who have undergone long-term professional training have a single swing arm action, and running is almost like a textbook, and each swing arm movement is standardized and neat, and there is a sense of beauty at close range.

The correct swing arm movement can better maintain balance during running, increase the swing of the swing leg and improve the speed and strength of the back running leg, which can make the body, arms and legs move in harmony, and can also effectively improve the cadence.

There is also the fixation of the upper body, from the head to the waist in the movement, it is easy to swing, such as the head back, the body tilt, the shoulders are not neat, etc., these habitual technical adjustments, after the body gradually adapts, can play a greater role in running.

We usually watch the Olympic World Track Events, sometimes because of the high level of the athletes, the camera angle, and the slow motion and action return visits, we don't feel any running posture.

If you want to change to an ordinary person running next to you, you can feel that kind of thing, and the action posture alone has been killed in seconds.

In the entertainment program that invited the champion to participate in the later generations, several gods of the national track and field team 4X100 competed in the relay race for the guests at the end of the program, not to mention that several track and field gods won this kind of thing after 15 seconds in time. It is the comparison of the running posture at close range, the standard degree of arm swinging, the stability of the upper body, and the difference in cadence and stride length, which intuitively makes people feel the gap between ordinary people and professionally trained athletes.

In fact, the top runners can hardly see a few movements that are unsightly in their running posture, especially in the sprinting position. In particular, the non-black athletes in the second and third sequences, such as the track and field national players and the Japanese national athletes, are as accurate as textbooks in terms of movement standards. In the case of physical talent, more attention is paid to the improvement of any technical details.

In the entire sprint event, a small number of athletes with ugly running postures, like Marion Jones, also rely on their own talent to solidify their movements in long-term training. Moreover, after the drug ban turmoil, several gold medals were cancelled, and whether it really relied on its own strength to achieve many honors is also between the two.

One of the things that Su Zu is strengthening now is swinging his arm, his cadence is fast, but his swinging arm action when running is too amateurish, not only the amplitude is different, but also the elbow is outward. In the words of Coach Zhuang: I just want to be chased around by an old hen.

"The swing arm movement should be centered on the shoulder joint, and the upper arm should drive the forearm. Look, I'm like this. ”

On the runway, Zhuang Tao was thinking about Su Zu demonstrating the arm swinging action when running, and as soon as he finished speaking, the person ran out with him.

In the sound of the swishing rubbing of sportswear, a big man is a thick and strong man, but he runs extremely light, every step feels extremely rhythmic and rhythmic, and the acceleration from the start is not slow at all.

With this kind of close-up observation and explanation, Su Zu could see that when Zhuang Tao was running, every swing of his arm was extremely standardized.

After running twenty or thirty meters, Zhuang Tao turned back again and continued to explain to Su Zu.

"When running on the way, keep your upper body stable and don't deflect and wobble. When the body is leaning, it is easy to affect balance when running in a straight line, and lose speed when running. ”

"The amplitude of the swing arm should not be too large, the hand does not exceed the horizontal position of the central axis of the human body and the chin when swinging forward, and the angle of the elbow joint should be paid attention to after the forward swing. Don't be too outward, don't you notice when you usually run, your elbows are almost parallel to your shoulders. Don't go too far inward, too close to the inside and the speed of your swing arm will be affected. When the arm swings back to the point where the body is almost vertical, the elbow joint will relax and the angle between the upper and lower arms will naturally increase. ”

Zhuang Tao impatiently guided Su Zu's swing arm movements, from smooth force to fixed angles, some professional skills that had never been heard of before opened a new door in front of Su Zu.

"An athlete, not an amateur, not to mention the rest, just a swing of the arm can be seen to be a seven, seven, eight, eight, eight, if you don't want to be embarrassed in the competition, give me a good practice now."

Zhuang Tao once again emphasized the importance of swinging arms in the running posture, as he said, on the track and field, how can professional coaches see whether a person has undergone professional training, simple, you run two laps, people will see it.

"Coach, you used to be a sprinter too."

Su Zu was carefully instructed by Zhuang Tao at various technical points, feeling a little impressive, he used to practice speed and strength every day, but this kind of technical guidance is not something that everyone can say.

"Why are you asking so much, hurry up and train."

Zhuang Tao didn't seem to want to dwell on this topic anymore, and after a direct lecture, he walked to the edge of the runway with pace, picked up the thermos cup and drank tea.

Su Zu practiced back and forth for a while, and saw assistant coach Zheng Wei coming over with a rubber band, and asked him secretly: "Viagra, Coach Zhuang used to be an athlete, which event did you practice, and I felt very good when I just ran." ”

"You don't know?" Zheng Wei said in surprise, and threw the rubber band in his hand to Su Zu, "Two minutes to raise your legs in one group, ten groups remember." ”

As he spoke, he glanced at the figure who was drinking tea on the edge of the playground in the distance, "Coach Zhuang turned out to be the first team in the province, and he entered the final in 400 meters during the National Games. ”

"400 meters?! I thought it was shot put. ”

Looking at Zhuang Tao's figure, if you want to say that you used to be a track and field athlete, few people would think that running, basically power events such as shot put and hammer throw, discus.

"But the National Games have been in the finals, and they have not won medals, right?"

Ordinary people have watched too much of the Olympic Games and the World Championships, and they don't feel much about the National Games, but after entering the sports school and engaging in athletes, they understand that the strength of the players who can get the ranking in the National Games is already the top handful in China. After all, the National Games of more than one billion people is already the highest level and the largest sports meeting in China.

"Fifth or sixth, it's useless, if it's not the first in competitive sports, few people will remember it. Sprinting is not our country's advantageous event, okay, let's practice hard, this invitational race will strive to run a good result, and give our sports school a boost. ”