There is one big difference between the 200-meter dash and the 100-meter dash, and that is the corner.

First of all, the start of the 200 meters and the first 100 meters are done in the corners. Therefore, the installation of the starting gear and the way of acceleration after the start are also very different compared to the straights. The starting gear is required to be installed on the outside of the runway, tangentially to the runway. In this way, it is possible to accelerate into the track in the shortest distance after the start. In addition, the 200-meter start is followed by a curve, so you can't just accelerate and dash with all your might, and you have to adjust your center of gravity during acceleration. Otherwise, it is easy to rush off the runway and foul because the speed is too fast to control.

In addition, there is a big difference between the technique of running in corners and running in the straights. Because there is centrifugal force when running corners, the whole body should be tilted inward in order to overcome the centrifugal force. As you swing your legs, abduct your left knee slightly outward and land on the outside of your forefoot. Buckle your right knee slightly inward, land on the inside of your foot, and swing your right leg forward. When swinging the arm, the left arm is slightly smaller and swings back and forth near the side of the body. The amplitude and strength of the right arm are slightly larger, and the forward swing is slightly to the left front, and the elbow is slightly outward when the back swing; And the degree of technical change in the curve is also related to the speed of running and the radius of the corner, the faster the speed and the smaller the radius, the faster the frequency of technical change. At the same time, it is necessary to run close to the inside of the track during the run, so that the distance you run can be minimized.

The most important thing is that when you enter the straight after the end of the 100-meter curve, you have to immediately reduce the degree of inward leaning, overcome the effect of centripetal force, instantly adjust to the normal 100-meter straight state, and then accelerate and run with all your might.

Therefore, the starting and acceleration of corners, the technique of running in corners and the technique of turning to straights in corners are called the three major technical difficulties of the 200-meter run. If one of the skills fails, the score may be slowed down by at least 0.5 seconds. Therefore, the seemingly simple 200-meter dash technique is more than twice as difficult as the 100-meter dash technique.

……

At this time, Guo Zizhao, who was still dreaming, hoping that he could kill all sides in the 200-meter event, was soon woken up by reality.

Right! I woke up from a fall......

Not only was I woken up, but I was also stunned!

I saw that after Guo Zizhao started, he stumbled after sprinting less than 50 meters with all his might, and then flew out very simply, and then rolled a few times on the ground, and finally lay on the ground on all fours, unable to come back to his senses for a long time.

The father and Song Ping, who were in charge of training on the side, were also frightened all of a sudden, and hurriedly rushed over, "What's wrong?" What's going on? Dad asked eagerly.

"Don't move yet! Lie still! Song Ping was still very experienced, and stopped his father's move to immediately help Guo Zizhao up, "Guo Zizhao, look at me, look at my eyes!" Don't move yet, feel if there is something wrong with your body and head? ”

"Huh? ......" Guo Zizhao slowed down for a while, and it took a long time to react, "It's okay, let me ...... slowly"

At this time, Guo Zizhao's mind was at a loss, he actually fell out in all directions? What's going on? "System, system big, tell me! What's going on? ”

"Not really. I'm stunned! The system's ridiculous voice sounded in Guo Zizhao's head, "Hmm...... Guo Shaoxia's flat sand and falling goose butt backwards landing on the ground is indeed a bit difficult to move! ”

I'll go...... At this time, I'm still in the mood to tease me!

Before Guo Zizhao could become angry, the system's voice sounded again, "Hmm...... A slight strain in the ankle ligament of your left leg and a slight bruise in your knee have been detected, and it is recommended that you repair it immediately. ”

"Hmmm! Repair! Of course, it's going to be fixed. Guo Zizhao immediately poured a bottle of "Primary Repair Elixir", and felt much more relaxed.

Before Guo Zizhao could continue to ask, the system continued, "I suggest that you take care of your old man and Song Ping first, and I will explain the specific situation to you later." It's not a big deal! ”

Guo Zizhao immediately came back to his senses, and saw that his father and Song Ping were still looking at him anxiously, "Baby, you speak." Did you fall? ”

Song Ping got started directly, and slowly groped on Guo Zizhao's head, waist, knee and ankle joints little by little.

"It's okay, it's okay!" Guo Zizhao immediately comforted the two, and then sat up directly, "Don't worry, old man." It's nothing, it's just that I suddenly accidentally fell and was a little confused. Now it feels okay! It's true! ”

"Don't move yet!" Song Ping still sternly stopped Guo Zizhao's further movements, and slowly pinched the joints, Achilles tendons, and thigh muscles on Guo Zizhao's body again.

"It's fine, there is no obvious damage to the joints, Achilles tendons and muscles." Coach Song Ping nodded, and said with palpitations, "Your baby scared us to death!" What just happened? Why did you fall down? ”

"That's it! It's okay, what kind of 200 meters are you practicing all of a sudden? Scared the hell out of us! ”

"Oh...... It's okay, I accidentally tripped under my foot just now. I didn't pay attention and fell down. Guo Zizhao also felt embarrassed, he was also a world champion anyway, and he actually ran a step and fell to rob. If this scene is filmed, it will be a shame. Fortunately, it's a holiday and the school is empty......

Next, Guo Zizhao used this as an excuse to rest for a while. Dad and Song Ping were not at ease, and sent Guo Zizhao to the school team doctor to check it again, and they were relieved to see that it was indeed fine.

。。。。。。

Guo Zizhao also took the opportunity to humbly ask the system for advice on the situation just now.

"Nothing big! To put it simply, you don't have the sprinting skills to get used to corners! The system is also concise.

"What? How is that possible? I've already mastered the 200-meter sprint technique you gifted? Guo Zizhao thought it was incredible.

"You've got it. But your body and muscles haven't had time to master it yet! ”

"What?" What the hell is this?

"How so...... In other words, although you have mastered the technique of running in corners, your body and muscles are still subconsciously and habitually exercising according to the power of straight running in the process of acceleration. So, the end result is that your baby is ...... tragedy," the system gloated.

"How so?" Guo Zizhao was depressed and muttered, "Isn't this scientific?" ”

The system rolled his eyes vigorously in Guo Zizhao's mind, grandma's, this is not scientific? The existence of such a system as me in your baby's brain is the biggest unscientific!

"Isn't that right?" Guo Zizhao suddenly remembered something, and then said, "The system is big, isn't this right?" The 100-meter dash technique and the 110-meter hurdles technique that you gave me before, haven't I been able to use it directly? At most, I wasn't very familiar with it at first, but it would be good to practice for two days? It's not like today, is it? The system is big, are you lying to me? ”

"Ahh What did I lie to you...... What were you like before? You didn't know anything before, but once you master these sprinting techniques, you can use them immediately. But now? Now that you've been practicing straight running techniques for almost 3 years, your body and muscles have long been completely integrated with those technical movements, and your body memory has been formed. If you suddenly change to something else, of course, if you don't coordinate it for a while, it's going to happen like today. It's like your baby used to be a blank sheet of paper, and I printed a picture of the straight running skills of the 100-meter and 110-meter hurdles, which is of course simple. Now that you're going to master the cornering technique, I'm going to imprint you another layer of painting. It has to be clearly layered and not interfere with each other, of course it is difficult......"

The system then complained, "Besides, what kind of physical fitness did you have at the time?" At best, he can barely be regarded as a third-level athlete, but now your baby is the top physical fitness at the national level, can you compare with the situation at that time? It's like your baby was a little Alto with a displacement of less than 1.0 at that time, even if you stepped on the accelerator to the end, you couldn't run 100 miles, and now your baby is an Audi off-road, and you have to run more than 140 when you step on the accelerator. At such a fast speed, your baby still dares to make a sharp turn, who will fly out if you don't fly out? It's good if there is no car wreck and people die! I can't figure this out, but I'm still a college student......"

At this time, the system is getting more and more energetic, "What's more...... Your baby is embarrassed to say that she has mastered the technique of running in corners. Fart! It's called mastery. You can accelerate at full speed after starting on a straight, but can you accelerate at full speed immediately after starting a corner? After starting, it is necessary to constantly adjust the center of gravity and the balance of the body with the bending of the track, so the curve running is a process of continuous adjustment at any time, so it is generally good that the fastest speed can reach about 90%~95% of the straight. But your baby started to rush when he ran together, and when he turned the corner, his body lost its center of gravity, and he was still resisting. It's okay to be thrown out directly by centrifugal force like this, and if your baby resists so fast, maybe it's not as simple as spending 10 experience points to buy a "primary repair potion". Humph......"

The system is too addicted this time, and after some reasoning, Guo Zizhao is wilted. Well, it's all too simple to think about yourself. It seems that I've been getting a little carried away lately......

"So what should I do? You can't just stop practicing, right? ”

"Practice! Of course, I have to practice! Well, this problem is actually very simple to solve...... Hey. ”

"Ah..... the system is big, then you can tell me quickly. How to solve it, please, the almighty system......" As soon as Guo Zizhao heard that there was a way, he immediately resurrected with full blood.

"Stop... Stop... Stop ......, you are a baby on your back, you don't have to pat me on the back. If you don't ask me, I'll tell you. ”

"Hey...... That's good, that's good, the system is really a good person! Guo Zizhao said with a grim face.

"Cut! In fact, it is very simple to solve this problem, and there are two ways. ”