In fact, Kitter doesn't have to worry too much about Zhou Yi, because for the Dortmund youth team, Zhou Yi is not a complete newcomer. Pen ~ fun ~ pavilion www.biquge.info

After all, Zhou Yi had played against them before, and had two assists and a goal in that game, which left a very strong impression on Dortmund's youth team up and down.

This is true regardless of Zhouyi's advantages or disadvantages.

This can be seen from the training content arranged by the head coach of the youth team, Eker, for Zhou Yi.

In addition to training with the team every day, Zhou Yi also has to do more physical training than other players, especially physical training.

What Zhou Yi lacks most now is physical fitness, and his physical fitness is completely unable to meet the requirements of a professional player.

Of course, Zhou Yi is not a professional player now, but becoming a professional player is the goal of hard work.

The youth team does not have a full-time physical coach, so Zhou Yi's physical training is handled by the first team's physical coach, Mr. Oliver Bartlet.

It can also be seen from this that Klopp's attention to Zhou Yi is indeed not just a lip service.

You know, Oliver Bartlett is a fitness expert that Dortmund takes very seriously, and his willingness to open a small stove for a youth team player is not easy in itself.

In Zhou Yi's first physical training class, Bartlet did not immediately arrange a physical training plan for Zhou Yi, but crossed his arms and asked Zhou Yi a question: "How do you understand physical fitness, young man?"

After listening to Keyster's translation, Zhou Yi didn't understand why the coach asked this question, but he still answered honestly: "It's endurance." ”

"Wrong. After hearing the answer, Bartlet shook his head.

"Wrong?" Zhou Yi was surprised, he has always understood physical fitness in this way, physical fitness is equal to endurance, players with good physical fitness, good endurance, can run longer and farther on the court, is there anything wrong with this?

And it's not just him who understands it, in football games, FM and Pro Evolution Soccer ...... That's how it is understood.

How could this be wrong?

Seeing Zhou Yi's surprised look, Bartlet asked him rhetorically: "I heard Tim say that you have always insisted on going for a morning run every morning during this time?"

Zhou Yi nodded proudly. With his character, it is indeed something to be proud of to be able to hold on for so long.

But Bartlett doesn't see it that way.

He directly rejected Zhou Yi's practice of relying on jogging to increase physical fitness: "Although jogging at a balanced pace in the field and park can improve your jogging ability, this kind of training will not improve your physical fitness in competition." Physical fitness is not just a simple concept of 'endurance'. Remember, soccer is a sport that involves many sprints and high-intensity anaerobic movements, interspersed with some low-intensity aerobic recovery periods in between, in order to prepare for the next high-intensity round. ”

After Zhou Yi listened to Kister's translation, his mouth opened wide.

Seeing Zhou Yi's expression, Keyter asked, "What's wrong?"

"Uh...... The coach said it was great, but ...... Can you get him to say it again?"

Keyter knew that Zhou Yi didn't understand, so he said to Bartlett, "Can you explain it in detail? Don't have so many jargon......

"To put it simply, you sprint, shoot, jump, tackle or break the ball during the game, which are all high-intensity anaerobic movements, and your body needs to consume adenosine trilingate, or ATP for short, to use some glucose to supply muscles to these high-intensity movements. Bartlet explained.

Although there are still a lot of professional terms, Zhou Yi understood this time, that is, what ATP and glucose does the body need to consume if it wants to move.

"Then the players recover during the low-intensity phases of the game, such as walking, jogging, standing, so that the ATP is replenished and the lactic acid is eliminated. Lactic acid is what causes your body to feel sore after heavy exercise. Lactic acid is metabolized aerobically, which is one reason why people breathe more heavily after decelerating or stopping from strenuous exercise. ”

Bartlet continued to explain, he combined with practical examples to explain, even if he was still full of professional terms, but Zhou Yi could understand it.

To put it simply, it means that you need to rest after strenuous exercise so that your body can recover and gain the energy to continue doing strenuous exercise.

"The interval between a player's return to high-intensity exercise depends on how quickly he replenishes ATP, how much lactate is metabolized, and how well some of the other electrochemical processes associated with muscle contraction are completed. Whereas, recovery is an aerobic process. The higher a player's aerobic capacity, the faster he recovers and the more often he runs at full speed. As a result, the longer you can play at your best without getting tired. ”

"So, what we call fitness in football isn't just your ability to run for long periods of time, it's your ability to recover quickly. Football is not a marathon, you don't have to run for 90 minutes all the time, but there will be a lot of frequent anaerobic exercises. If your body doesn't recover quickly from anaerobic exercise, then you naturally won't be able to last long in the race, and you can easily get tired. ”

"Once you understand what physical fitness is in football, you can see why I say that jogging in the park doesn't improve your fitness in a game. Because improving your jogging ability won't make it easy for you to regain energy quickly during a race. ”

Zhou Yi was already stupid, but this time he was not shocked by the professionalism of professional football clubs because he didn't understand.

Yes, after listening to Bartlet's words now, his mind is full of two words: professional!

That's a professional!

I used to think that running 10,000 meters with sandbags would be good, but now I know that it was nonsense.

And it's not just him, judging from the slogan of "10,000 meters a day" in the previous Haigeng spring training, Chinese football is not very professional......

No wonder the level of Chinese football has not gone up.

If the practitioners of Chinese football are so unprofessional, what are they still thinking about rushing out of Asia and going to the world...... That's a fool's dream.

The Chinese team has participated in the World Cup finals once in history, but that time was just luck, which does not mean that the strength of Chinese football has improved.

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Subsequently, Zhou Yi further saw the professionalism of European giants.

After explaining to Zhou Yi what the concept of "physical fitness" in football is, Bartlet did not immediately start training Zhou Yi, but conducted a test on Zhou Yi. According to him, this is to detect the distribution of fiber types in Zhouyi's muscles.

Based on the previous explanation of physical fitness, it can be seen that football players are constantly cycling between anaerobic and aerobic exercise during the game. In the human body, there are two types of muscle fibers that correspond to these two movements.

Large fast-twitch fibers can generate a lot of tension very quickly, but they can't consistently produce that amount of tension over multiple contractions. Smaller slow-twitch fibers produce less tension at a slower rate, but can contract repeatedly and continuously.

Therefore, fast-twitch fibers can produce a large amount of anaerobic energy for the rapid generation of tension, and explosive power is needed when players sprint, jump, tackle, and shoot, and all that is played in the body is anaerobic energy. Slow-twitch fibers, on the other hand, can produce a lot of aerobic energy for repeated contractions.

The distribution of fast-twitch and slow-twitch twitch fibers is largely determined by genetics, which is known as "talent".

Some people are born fast runners, which means that there is a higher proportion of fast-twitch muscle fibers in the body.

It is impossible to change the distribution ratio of muscle fibers through the day after tomorrow, so it is necessary to find out what kind of muscle fibers are more in Zhou Yi first, so as to make targeted training arrangements.

And it's not what everyone thinks, Zhou Yi's physical fitness is not good, so go directly to the training content to enhance physical fitness.

How to test the distribution of muscle fibers in Zhouyi?

In fact, it is very simple, just test your muscular endurance. First of all, test the maximum strength of Zhou Yi's muscle contraction, for example, if you want to test the proportion of muscle fibers in some of the muscles of the legs, let Zhou Yi sit on the adjustable leg press exerciser, and then let him push the front baffle hard, and then gradually increase the weight, observe Zhou Yi's situation, if a certain weight Zhou Yi really can't kick, then the last weight he can pedal is the maximum force of his muscle contraction.

Eighty percent of this maximum strength is then taken as the test strength standard. Let Zhou Yi repeat the training on this strength to see how many times he can hold on.

If it is more than fifteen times, it means that this part of the muscle has a high proportion of slow-twitch fibers. If it is less than five times, it indicates a high proportion of fast-twitch fibers.

Just part of it, part of the muscle tested.

In the end, Bartlett came to a conclusion.

The ratio of fast-twitch and slow-twitch fibers is 54:46.

He has fewer slow-twitch fibers, so he is less physical.

This result made Zhou Yi a little disappointed: "Doesn't that mean that I am born with poor physical fitness, and it is useless to improve my physical fitness?"

Bartlett shook his head: "If that's the case, what else do you want our physical trainers to do? Our physical trainers are specifically responsible for cultivating and enhancing your physical fitness." You know, lad. Speed is innate, but fitness can be improved through training. ”

He patted Zhou Yi on the shoulder: "So don't worry, you will definitely not be able to play half a game forever." ”

Zhou Yi hurriedly pleaded: "It's seventy minutes." ”

But Bartlett doesn't care about the difference.

"It's all pretty much the same. He shrugged and pouted. "Alright, that's the end of today. ”

Zhou Yi was surprised: "Don't train?"

"I'll wait until I get back and make a targeted training plan for you before you start training. Bartlett said. "Tomorrow we start training. Today you have a good rest, don't be too tired, you have to start training when you fly from China, so it doesn't do you any good except to show your own attitude. Remember, rest is the first step in physical training, and don't try to train well without rest. ”

Bartlet picked up the notebook that recorded all of Zhou Yi's muscle data and left, Zhou Yi was still stunned, recalling his last sentence.

Rest is the first step in physical training......

It was the first time he had heard of it.

But...... Seems to make sense!

Professional!

"That's what Mr. Bartlett is, he speaks very straight, and he doesn't like. So don't take it to heart, Zhou Yi. Kitter thought that Zhou Yi was stunned by Bartlet's words, and hurriedly comforted him.

Zhou Yi shook his head: "How so, Mr. Keyter." It's too late for me to have such a coach who points out my problems directly, saving us all time. Rest assured, Mr. Keyster. I'm not a glass heart!"

"That's good. Kister laughed. "Alright, let's leave too. Have you forgotten that you're moving today?"

Zhou Yi was stunned for a moment, and then remembered that there was such a thing!

The club has approved his application to stay at Wagner's home and will be moving from the hotel to his team-mate Mark Wagner's home today!

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ps, there is a change in the afternoon, ask for a monthly pass!

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