Almighty Coach

At the training ground, Li Dai pointed to the video and said to Sean Ford: "You now need to increase the time your left foot touches the ground. Our next training will also be aimed at this."

"Is it really possible?" Ford's doubts, what Li Dai said is the opposite of all the coaches who guided him before. Other coaches hope that he can shorten the time his left foot touches the ground as much as possible, and Li Dai actually Let him increase the time his left foot touches the ground.

"Coach Li, I once did a test in a research institute. Because my left leg is longer, my left foot touches the ground longer than the right foot, about 14% more." Ford said immediately.

"So the coaches you met before will tell you to reduce the bottoming time of your left foot in order to achieve a balanced foot pace, and their training is also for this purpose, right?" Li Dai asked. .

Ford nodded very honestly, he did n’t think there was anything wrong with it. Step balance is the most basic requirement for sprinters, and the more balanced the better, no one wants to step faster and slower. This common sense even sprints. Beginners know it.

Li Dai then asked: "Then when did you go to the research institute to do the test? After you won the World Championship?"

Ford nodded: "Yes, I won the 2m championship at the World Championships. At that time, I received some advertising endorsements, and I was relatively ample on hand, so I spent a lot of money on improving my results."

"Sure enough!" Li Dai sighed, then said: "Under normal circumstances, it is not wrong to pursue the balance of the pace of the legs, but your situation is different. Your left leg is longer than the right leg. This means that when you run, the torque of your left leg will be greater. According to the physics formula, the torque is equal to the force times the arm. In order to achieve the balance of your legs, you must deliberately reduce the left leg ’s Strength, or deliberately increase the strength of the right leg. "

Ford nodded. The previous coach did do such targeted training.

Li Dai continued: "It is also because your left leg is longer. When running, your left leg will definitely touch the ground earlier, so your left foot will be longer on the ground. Your previous coach must also require After that, let your left foot move off the ground faster. The reason why they demand it is to make your stride more balanced, but I think it will affect the integrity of your running. "

"You mean, I shouldn't pursue a balanced pace?" Ford asked with a surprised look. He didn't understand Li Dai's ideas. After all, Li Dai's ideas were contrary to the traditional sprint theory.

"Correcting the asymmetry of your legs is not helpful to increase your speed, it will also be counterproductive. The length of your two legs is different, so for you, the kind of symmetrical running of legs is an unnatural step. "Dai Li's voice paused, and then said:" The world's top sprinter, the peak strength of one foot can reach 5 times the weight, and this peak is issued within .3 seconds after touching the ground. This is a very important source of motivation in the previous process and can even determine the final score. "

"Normal sprinters, their stride frequency is coordinated, the peak strength of the left and right legs should be about the same, even if there is a gap, the gap will never exceed 3%, but you are different. The peak should exceed 1%. Do you know why? "Li Dai asked.

"Because of the previous training?" Ford asked thoughtfully.

Li Dai nodded: "Yes, I just said that in your training a few years ago, in order to balance the torque of your legs, you must reduce the strength of the left leg or you can increase the strength of the right leg, while deliberately reducing the touch of the left leg. Time will also cause a loss of strength in your left leg. This kind of training over the years will inevitably cause the peak strength of your right leg to step far beyond your left leg. "

"Your current situation is that the right leg is shorter, but the peak strength of the right leg's stepping force is higher. This is a situation that is completely contrary to the normal force principle, so the normal running method is not suitable for you. Say, the most logical way to run is to make your left foot on the ground longer, so that your left leg will exert more time, which will produce greater centrifugal force to achieve the purpose of increasing speed. "

"At the same time, this can also increase your speed in the corners. When running in a curve, the body needs to lean left to maintain body balance. If the left foot is on the ground for a longer time, the stability of the curve will be more stable. High, and at the same time the peak value of your right foot on the ground can also be better played, so that you will have more kinetic energy and faster acceleration in the curve. "

"It turns out that way!" Ford nodded suddenly, and then his expression looked very frustrated: "So, I have been doing useless work in order to balance the pace frequency over the years?"

"It's not just useless work, you are just stabbing yourself with a knife." Li Dai looked at Fode sympathetically, and he could understand his feelings at this time.

As an athlete, he has worked hard for many years and has spent a lot of time, money and sweat, but he was told that all these efforts are negative. This is definitely a huge psychological blow.

"Don't be so frustrated." Li Dai said comfortingly: "It's too late to start correcting. We can still catch up with the Olympic trials in late June. I will send you to the Olympic venue!"

...

Sean Ford ’s training is a mid- to long-term process. For an athlete with mature technology, changing the running style is a very difficult thing, because the top athletes change the running style, not just the simple running style. Changes, you still need to improve a lot of details. Under normal circumstances, athletes can fully adapt to a new running method within a year, even if it is very fast.

Sean Ford ’s situation is a bit different. The way he used to run was mainly to make up for the physical defects of the long and short legs. From the perspective of the overall body, it is not an unnatural gait, and now Li Dai is letting His gait returned to nature, and his training efficiency was much faster.

Like a left-handed man who forced him to use chopsticks with his right hand, he would definitely feel that the movement was unnatural, but he would get used to it when he practiced slowly. But even if he used his right hand for many years, if he could use his left hand again, he would adapt quickly. Because that is the instinct of the body.

From this point of view, Sean Ford's previous running style is problematic, Li Dai just let Sean Ford return to instinct.

At the same time, Justin Alexander's performance has been continuously improved. After two small-scale games, Alexander gradually recovered the status of the game. He began to participate in some medium-sized games, and both won.

Alexandria was once "the second flying man in the world". At his level, even in the United States, where the track and field power is the top, participating in a medium-sized competition is considered a killer.

In the three consecutive medium-sized track and field competitions, Alexander all ran within 1 second and 5 seconds, which greatly increased his confidence. He decided to participate in some larger and more heavyweight events.

...

Pennsylvania Track and Field Classic.

This is a semi-inviting competition. In the 100-meter sprint event, five of the eight athletes are invited, and the other three people need to qualify for the qualifying competition.

Perhaps because of the previous ban on doping, Alexandria ’s reputation was not very good, or maybe he had just come back and had not achieved any very beautiful results. He was not included in the invitation. Alexander could only participate in the qualifying tournament. Then got a place in the race.

In the athlete's locker room, Alexander had just changed his clothes and heard a familiar voice from behind: "Justin, why are you here? I remember you were not on this invitation list!"

Alexander knew without looking back that the speaker was his former coach Sebastian.

"I heard that you went to the training center of the Chinese coach. Why didn't he come with you?" Sebastian looked to the left and right and began to look for Li Dai's figure.

Pennsylvania is in the east of the United States, a little far from Los Angeles, so Li Dai did not come this time.

Alexander didn't answer, and now he doesn't want to have any intersection with Sebastian anymore, even if he talks and talks, it can be avoided.

Sebastian behaved like a tuberculosis, he said with contempt: "I heard that you participated in several small competitions, but I didn't expect that when you were the first flying man in the United States, you fell into that place. A small game. "

Alexander heard the strong irony in Sebastian's words, but in the face of the coach of the past, Alexander's confidence was still slightly insufficient, so he decided that nothing was wrong with Sebastian's irony.

Alexander ’s silence did n’t stop Sebastian. He pointed to a young black athlete behind him and said, “Introduce you to someone,“ Miami Lightning ”Wharton, you should have heard Got the name. He started training with me a year ago. In the last five consecutive games, he has scored within 1 second, including 9. seconds. "

"It turns out that he is the genius sprinter Wharton of Miami!" Alexander obviously also heard of Wharton's name. He couldn't help but look at Wharton more. He sensitively noticed that this young Wharton would Will become his most powerful opponent in the game.

For a 100-meter sprinter, if you can run within 1 second in five consecutive games, it can definitely be regarded as an extremely good result, and a 9. second result is likely to win the world-class large-scale competition. of. However, from these two statistics, this player named Wharton has the world's top 100-meter sprint level.

Wharton is a sprinter who has risen very quickly in recent years. He has won the National Youth Games in his youth. Now he has won the American college athletes for two consecutive years. In professional competitions, he also He often cuts through the thorns and gets good results. Because Wharton is from Miami, everyone gave him the nickname "Miami Lightning".

Now that Wharton and Sebastian are collaborating, the results are even more rapid. Sebastian has won the award for the best track and field coach in the United States, and has trained many world champion athletes. , Sebastian's training level is definitely the world's top, he and Wharton is a strong combination.

...

The 100-meter trapeze battle is about to begin, and all eight contestants are on the starting line.

Sebastian looked at Wharton confidently. In his view, Wharton in good shape is bound to win today's game.

"Among the players participating today, although there are many powerful guys, they are definitely not Walton's opponents. In training, the fastest score of Walton has reached within 9 seconds."

Results within 9 seconds, whether in the World Championships or the Olympic Games, are enough to win the championship.

Of course, practice is different from competition. Athletes usually practice better than they do in competitions. Especially in some large-scale sports events, athletes can achieve 80% strength even if they are successful. But I have to admit that the results within 9. seconds in the practice can still show that Wharton has a very strong strength.

"Now Wharton should be the first flying man in the United States. Next, I will train him to become the first flying man in the world. Jitel has retired, and the sprinting will definitely return to the era of group separatism. This opportunity , Of course, hold firmly! "

Sebastian couldn't help thinking of Alexander.

"Wharton's talent is very good, but it is still inferior to that of Alexander. I think that Wharton's peak is at most the second Alexander. Unfortunately, Alexander refused to use it for me. But it does n’t matter anymore, Alexander is no longer afraid ... "

"Slap!" The sound of the starting gun interrupted Sebastian's thoughts, the athletes all rushed out of the starting line in a flash, and Sebastian's attention was refocused on Wharton.

As Sebastian expected, Wharton was indeed stronger than the others. After thirty meters, he was already more than one position ahead of the left and right athletes.

"Sure enough, I won." Sebastian just breathed a sigh of relief, but found that on the edge of the runway, there was a personal speed as fast as Wharton.

"It's Alexandria!" Sebastian's heart tightened. It felt like his heart had been yanked.

In the 100-meter sprint, the middle two runways are the best, and the runway on the side is the most unfavorable. As a breakthrough qualifier, Alexander can only be divided on the side track.

But this did not affect the amazing speed of Alexander.

At sixty meters, Wharton has clearly stood out from the contestants, and the only one who can keep pace with him is Alexander.

The audience at the scene began to boil. No one was willing to watch the one-sided game. As now, the two athletes are fighting together. No one knows who is the ultimate winner. That is the most exciting game.

At the side of the game, Sebastian's expression was frozen, and an ominous feeling faintly rose in his heart.

Sebastian used to be Alexander's coach, so he knows Alexander very much. To some extent, Alexander can be regarded as his outstanding disciple. In his memory, he still retains the appearance of Alexander at its peak ~ www .readwn.com ~ And now, Alexander's performance on the field is exactly the same as the peak Alexander he remembered.

"Not good!" When the idea came out of Sebastian's mind, the athletes on the field had already approached the finish line.

Wharton leaned forward, trying hard to touch the line with his head.

Alexander didn't do the same thing, he just bowed his head slightly.

Because Alexander knew that it was himself who led the way, and his leading edge prevented him from making a large touchdown.

In the blink of an eye, all the athletes crossed the finish line and then began to slow down.

On the big screen at the scene, the retransmitted shot will only stare firmly at the champion.

That man is Justin Alexander!

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