Participate in 400m race

Coach Sun has been with Liu Feiren. He found that Liu Feiren had been watching Zhang Guan train and said with a smile, "Why, do you also want to try?"

Liu Feiren shook his head, "I'd better focus on one. But I always think that Zhang Guan's 400-meter run is a bit weird."

"You see it too?" Coach Sun continued, "It's more than just strange, it's just an alternative. How can the current athlete run like this!"

Liu Feiren did n't quite understand, so Coach Sun said, "The running methods commonly used by our domestic athletes are: the first 100-meter tuning, the second 100-meter straight acceleration, the third 100-meter tuning, the fourth 100-meter sprint."

Liu Feiren nodded, he knew this. In the 400-meter sprint, the runner is on a curve after starting. At this time, the athlete is running more easily because of sufficient physical strength. At this stage, the athlete also needs to enter the rhythm of the familiar sport as soon as possible. After entering the straight, the athlete will choose to speed up and will use about 90% or even 95% of the force to run.

Then entering the second corner, which is the most uncomfortable stage for athletes. Due to the straight-line acceleration, the physical strength has been consumed a lot, so you will feel tired or slightly suffocated in the second corner, this is a normal physiological phenomenon brought by anaerobic exercise, and the athlete will also slow down slightly in the second corner to adjust. Then enter in the final straight, that is how fast you can run until you reach the line.

Coach Sun explained next, "I am also observing Zhang Guan. He is not using this running method. His first three hundred meters, whether it is a curve or a straight, he runs without rhythm, and then to the final straight, he will sprint violently. I secretly asked an old man yesterday, he said that Zhang Guan is not very good at the rhythm between the curve and the straight, so he simply used this way of running."

"Hahaha, I didn't know how to learn it! Does he also have such a bad time? I thought he invented a new 400-meter running method!" Liu Feiren laughed.

"I also think it's funny because I can't learn to choose another running method, Zhang Guan should be the first one! But this running method is not innovative, but very retro. Probably when using this kind of running method, your parents' talents were just born!" Coach Sun said.

Liu Feiren listened quietly and waited for Coach Sun to continue to answer. Coach Sun then said, "In the initial 400-meter sprint, no one knew how to run, they just pulled his legs and ran forward. At that time, the athletes were running blindly; later athletes found that if they run at the same rhythm, they will save a lot of physical strength, and then use these physical strengths for the final sprint, it will have a good effect, so the 400-meter running method at that time is almost a rhythm in front of 300 meters, and a straight sprint in the back, which is Zhang Guan's current running style."

"But everyone who uses this method of running, will find that the game will be less enjoyable. Especially when the athletes are similar in strength, everyone runs in the same way in front, and there is not much difference when the final straight track is reached. It's like watching a 100-meter sprint that lacks physical strength. Later, more modern running methods began to appear. For example, the first corner quickly entered a straight, and then the speed of the straight was increased to adjust the corner. Sprint at 250 meters, etc. Especially after the appearance of Michael Johnson in the United States, the running technology has greatly developed. Our country's 400-meter sprinting technology is very backward, and now Western Asian players and Japanese players have begun to adopt the technology of some European and American countries."

Liu Feiren nodded, and then asked, "Isn't Zhang Guan's retro style of running already behind the times? Will it be very passive during the game?"

"It is possible, but I'm not entirely sure. In the 400-meter sprint event, each athlete will have a set of suitable running methods and rhythm allocation methods. Since athletes do not need to merge, tactical considerations are relatively small, as long as they follow their rhythm. It's good to run, so it's a test of strength." Coach Sun thought about it and then said, "Zhang Guan's 100-meter sprint is the world's first, and it is much stronger than other domestic players. I want to rely on it alone. In terms of physical fitness, he is better at running 400 meters than many professional 400-meter players in China!"

...

Field Management Center.

When the knock on the door rang, Director Luo shouted "Please come in", and then saw Director Ma pushing the door in.

"Director, there is something to report to you." Director Ma sat directly opposite Director Luo, and then said, "About Zhang Guan."

"Zhang Guan? What's the matter with him?" Director Luo's heart tightened, and the love affair was just over. Is there any new problem?

"It's like this. Regarding East Asian athletes, Zhang Guan said he didn't want to participate in the 100-meter sprint!" Director Ma said.

"Don't want to participate? No!" Director Luo was annoyed suddenly. He suddenly felt that what the nasty Director Qu said was quite right, maybe it was not good to give athletes too much autonomy, how long did it take for Zhang Guan to refuse!

"Director, don't get me wrong. Zhang Guan proposed not to participate in the 100-meter sprint race, but to participate in the 200-meter sprint and 400-meter sprint." Director Ma continued.

"Oh? 200 meters? 400 meters? Can he do it?" Director Luo calmed down immediately, and his annoyance disappeared without a trace.

"I think 200 meters should be okay. I have seen him run 200 meters. He has a strength of 20 seconds and 20 seconds on a 200-meter sprint. But I can't guarantee it at 400 meters." Director Ma explained.

"20 seconds 20? 0.3 seconds faster than the national record!" Director Luo was surprised, and then said with relief, "Yes, he is more than half a second faster than other domestic players in the 100-meter event, and 200 meters is 0.3 seconds faster which should be normal. That's not far from the Asian record? Is it possible to win a card in world competition?"

"It may not be possible now, but it is possible in two or three years. If it is an Asian competition, there will be no problem with the medals, and there will be 80% or 90% hope for the gold medals!" Director Ma replied.

"In two or three years, that means catching up to the next Olympics!" Director Luo was immediately excited. He had already begun to imagine Zhang Guan taking the 100m and 200m championships of the next Olympics. Then he said, "200m sprint, let him try it. But at 400 meters ... "

Director Luo hesitated, 400 meters and 200 meters are different, if compared with 100 meters, the span is larger.

Director Ma next to him said, "I heard the old saying that although Zhang Guan's 400-meter technology is still lacking, the rhythm is quite good, but I haven't seen it with my own eyes, should we let him test it? To see where he goes."

Director Luo nodded, "Okay, test! If he can run into 46 seconds, let him go to the competition."

...

In the restaurant of Xinzhuang Training Base, Liu Feiren and Zhang Guan happened to be sitting opposite each other.

"Today's beef is really good." Liu Feiren picked up another piece of beef stew, and then asked, "I heard that you did not apply to participate in the 100-meter sprint of the East Asian Games, instead you're running 200 meters and 400 meters?"

Zhang Guan nodded, "There are just a few people participating in the East Asian Games, 100 meters is not difficult, the strongest Japanese people only run in for 10 seconds, and I have no passion to abuse vegetables. So it is better to leave the opportunity for other athletes in our country, I can control a quota without participating in the 100 meters, and let other athletes play, to gain experience. Hu Kai played well in the track and field Golden Grand Prix a few days ago. I might be able to enter a bid in the future."

"It's also true that you are half a second faster than others, and it doesn't make sense to run. You have been running well at 200 meters recently. I heard that the training level can be maintained within 20 seconds of the hand count. If you switch to electronic timing, it is normal to dominate Asians in the early 20s." Liu Feiren took a sip of soup, and then said, "However, it 's terrible for you to run at 400 meters! Although I haven't crossed the 400 meters, I also see that your skills are not whatever it is, especially when you first started practicing, it is almost amateur level."

"No hurry, practice slowly, after all, the technical requirements for 400 meters are too high. It is estimated that I need two months of serious practice, then it will be better by the beginning of next year." Zhang Guan continued, "This afternoon, Director Ma is going to give me a test, saying that as long as in the 400 meters, I can run into 46 seconds, he will let me participate."

"46 seconds? Such a high demand!" Liu Feiren leaned forward and leaned forward, then asked, "Are you confident?"

"No problem isn't it just 46 seconds!" Zhang Guan said confidently.

"Now I envy you when you practice sprinting. You can run 200 meters and 100 meters or 400 meters. Like when I practice hurdling, I can only run 110 meters. It is boring." Liu Feiren sighed.

"Or do you also want to apply to participate in the 4x100 meters of East Asian Games? It doesn't matter as long as you run fast, I will give you a bag."

Liu Feiren shook his head, "Forget it, there is no problem with the current lineup winning the 4x100m relay. I won't add to the chaos."

...

The men's 400-meter sprint level of the national team is relatively low in the world. If the national team's 100-meter sprint can still be at the forefront of Asia, then the 400-meter sprint can only be regarded as a low-level in Asia. The achievement score of the international sports athletes in this project is 45.74 seconds, and there are only two people nationwide. The achievement score of the national sports athletes is 47.60 seconds, and the number of people is not very large. The A mark of the 400-meter sprint Olympics is 45.55 seconds and the B mark is 45.95 seconds. However, in the two years before the Athens Olympics, no one from the national team ran into the Olympic B mark, which means that no one participated in the 400 of the Athens Olympics Game.

The 46 seconds that Director Luo said is a top result in the country. In the 400-meter sprint event, only three athletes in the country have run into 46 seconds before, two are active players and one is a retired player. The 46-second score means that you have a great chance of winning medals even in Asian track and field competitions.

In the domestic general level competition, in the 400-meter sprint event, athletes can run into 46.5 seconds to almost win the championship, and in the 10th National Games that just ended not long ago, the top three scores were 46.15 seconds, 46.44 seconds and 46.66 seconds.

Therefore, 46 seconds is quite difficult.