PS, high-energy warning - This chapter has a lot of professional popular science and introductions. Don’t read it if you don’t like it!

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"It's been a week of physical training. Oliver, how are the physical training of the players?" Klopp asked Oliver Bartlett, the leader of the physical training team sitting opposite him.

"Most people's situation is normal, and their physical fitness has improved. In addition..."

"Um?"

"There is one person who has made great progress." Bartlett took a copy from the physical fitness report and handed it to Klopp.

"Zhou Yi's?" Klopp saw the name on the report.

"Yes," Bartlett said. "I said he is a talented player in terms of physical fitness. His physical fitness was poor before because he had never received formal and professional physical fitness training. I bet his previous physical fitness training might just be running around the football field for a few laps."

In fact, Bartlett overestimated Zhou Yi. In the past, Zhou Yi would only go to the track for two or three laps when the school had sports compliance requirements. As long as he could meet the standards, he would not continue to torture himself like this. Compared with boring running, he prefers to play football.

When Klopp said Bartlett, he looked down at the report, which intuitively showed the changes in Zhou Yi's daily training situation in the form of a chart.

Dortmund's physical training phase opened Zhou Yi's eyes because of his professionalism.

When each player is physically training, he must wear a special tight T-shirt. There are some electrodes inside the T-shirt, which are attached to the body, which can monitor the changes in the heart rate and pulse in real time, and upload it to the physical fitness of the physical coaching team through the wireless network. In this way, the physical data of each Dortmund player during the physical training stage can be easily archived and managed, so that the coach can grasp the player's situation in real time.

If the player's heart rhythm is found to be abnormal during training, the coach will immediately intervene and ask the player to reduce the intensity of the exercise until the heart rate returns to normal.

On the one hand, it ensures the safety of players' training, and on the other hand, it also ensures the quality of training.

"We asked him to train at a maximum heart rate of more than 85% for 60 minutes, once a day for seven days. It can be seen that his maximum heart rate dropped five times. This is a very amazing change. You should know that professional endurance athletes also train for seven weeks to reduce ten times. And he dropped five times in just one week, which shows that he has a very high talent in endurance." Bartlett continued to explain.

"In addition, he was asked to train at a maximum heart rate of 60% to 90% for twenty minutes to an hour, and after training five times in seven days, his cardiovascular function also improved significantly. This is reflected in the changes in physical fitness. There is a very obvious and intuitive change. It is difficult for you to see him slump on the ground like the first day after the training, right?"

Klopp thought about it carefully and found that it was true. He only trained three times a day. After each training in the past few days, Zhou Yi's performance was indeed better than before.

"It's really unexpected. This kid's thin figure didn't expect that there was such a huge amount of energy in his slim figure." Klopp shook his head and sighed.

"Yes, I'm incredible when it comes to this," Bartlett said. "Training people like this makes me feel quite accomplished."

Klopp put Zhou Yi's physical fitness report aside and looked at Bartlett: "But it's not enough, Oliver. Such results are not good enough."

This made Bartlett feel a little bit of a basin of cold water. He asked in surprise: "It's not good enough? This is much better than when he was in the youth team..."

"The youth team is the youth team. We are the first team. The first team has the requirements of the first team, and it is completely different from the youth team."

"But just as first-team players, if he continues to practice according to our current training plan, it will be enough to meet the first-team appearance standards."

"Is it enough to just play?" Klopp asked with a smile, "I don't think so, right? I'm the same. My requirements for him are not just to be able to play in the first team."

"This..." Bartlett didn't expect Klopp to value such a youth team player so much.

If he had known that Klopp had flew to Barcelona in person to persuade Zhou Yi to join Dortmund, he would probably not have been so surprised.

Seeing Bartlett hesitating, Klopp turned his head and asked Dr. Marcus Braun: "Doctor, do you think Zhou Yi's body can withstand greater exercise?"

Dr. Marcus Braun, 42, is an expert in sports medicine and the leader of Dortmund's team doctor team. He leads his team to closely monitor the physical condition of the players every day. If there is any discomfort, he will immediately notify the coaching team and ask them to stop training or adjust the training plan to reduce intensity and avoid players from being injured.

So if you want to ask whether Zhou Yi can withstand greater intensity of training, you must ask Dr. Braun.

Dr. Braun opened a table from his laptop and said to Klopp: "I noticed an interesting phenomenon. At the beginning of training, his lactate threshold was not prominent in the entire team, which was consistent with the impression that he gave us that he was not a player who could not run. However, as the training progressed, I found that his lactate threshold was not very prominent, but he felt that he was not so tired during training. The lactate threshold was not significantly improved, but his athletic ability improved. I just wondered why this happened?"

The lactate threshold is used to measure a player's athletic ability.

When people exercise, lactic acid will be produced in the blood due to the anaerobic metabolism of the body and accumulate. Lactic acid will make people feel burning pain in their body muscles. This is why many people feel muscle sore after exercise.

The lactate threshold refers to the starting point when the exercise intensity reaches a certain load, the blood lactate concentration will rise sharply. It is also the turning point where the human body's metabolic energy supply method mainly shifts from aerobic metabolism and energy supply to a turning point from anaerobic metabolism and energy supply.

A sharp increase in blood lactate concentration means a large accumulation of lactic acid in the body, which means that the body's ability to decompose lactic acid has decreased. The production of lactic acid is much faster than the speed of body recovery, which will lead to a sharp increase in blood lactate concentration. At this time, local tissues in the body will change. In order to avoid harming muscle cells, the body's metabolic process will become slow, which is the body's self-protection and a manifestation of fatigue.

A high lactate threshold means that the starting point of aerobic to anaerobic anaerobic is high, which means that the body's aerobic exercise ability is better, because the range of aerobic metabolism energy supply has been extended. Therefore, endurance athletes, such as athletes in long-distance running, long-distance swimming and bicycles, have a higher lactate threshold than athletes in non-endurance running, short-distance swimming and other events.

But Zhou Yi's lactate threshold did not increase much, but his physical fitness improved, which is indeed a bit strange.

"Later we tested his maximum oxygen intake and found that his maximum oxygen intake was very high, ranking among the top in the team, not inferior to those players with excellent physical strength. I think that's the reason - he has a pair of outstanding lungs that can inhale and process oxygen that is beyond ordinary people, and also has a very strong heart that can compress the oxygen into all parts of the body with blood. In this regard, he is indeed a talented player in physical fitness."

The maximum oxygen absorption is also an indicator to measure a person's exercise ability, which refers to the maximum oxygen that the human body can absorb, transport and utilize during exercise.

Generally speaking, the lactate threshold can be significantly improved by professional training. However, the maximum oxygen absorption is limited by genetic factors and cannot be significantly increased through acquired training. Therefore, Dr. Braun said that Zhou Yi is a talented player and is completely scientifically based - the maximum oxygen absorption is based on genetics, which is not talent.

"In addition, because of the problem of our methods of detecting lactic acid, we usually draw blood to test lactic acid after the exercise. At this time, the blood lactate concentration of the players has begun to drop, so the detected lactate threshold does not represent the player's highest data. But I think this can indirectly show that Zhou Yi's physical recovery ability is very good, otherwise the lactate threshold will not be able to perform better and better physically under the condition of not being too high."

Hearing Dr. Braun say this, Bartlett next to him nodded: "Yes, after all, football does not require aerobic exercises to maintain a rhythm for a long time, but requires constantly switching between aerobic and anaerobicity. The body's recovery ability is often more important than the lactate threshold."

"So through monitoring and analysis of his physical data, I think... Zhou Yi's excellent physical recovery ability really allows him to withstand greater intensity of training." Dr. Braun finally gave his conclusion.

Klopp slapped his hands together: "Then let's see how much potential he has to be squeezed out!"

He thought of the scene when Zhou Yi told him that he wanted to get the first team guarantee.

Does that kid think everything will be fine if he comes to the first team? Entering the first team means he can make a name for himself?

Well, now let him tell him that it is just the beginning of a journey to hell! Want to make a name for yourself? How can you not put in more effort than others?!

It doesn't mean it's a good thing to be in the first team...

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In the hotel room at night, Zhou Yi turned on the computer and left a message to his parents on QQ to report on his training and life in recent times.

This was his first time logging on QQ since he came to Radksburg. He didn't have much energy before and couldn't imagine going to QQ.

Recently, he felt that he would feel more relaxed when dealing with the team's physical training. This is an improvement, so he wanted to come up to report the good news to his parents.

"...The training of the first team is much harder than I thought, Dad. But I think I am quite good, because I actually persisted. Now I feel that I am not as hard as I did in the first period. My physical fitness is much better than before. Now I go to the fifth floor in one breath without breathing or being weaker..."

In fact, Zhou Yi has a very intuitive way to learn about his physical improvement, but he couldn't tell his father about this, so he had to use this method of teasing advertisements to tell his father about his current physical condition.

In the virtual world, Zhou Yi pays attention to his own attributes every day.

In addition to his abnormal vision, his highest value is short pass, which has reached 79, which is why he is constantly training in the virtual world and reality.

Passing is his foundation, and of course he attaches great importance to this. In the training of virtual systems, he spends more than half of his time on passing training. Fortunately, the training methods of virtual systems are diverse, quite interesting and challenging, so Zhou Yi doesn't feel boring when practicing - what Zhou Yi fears the most is boring things... So he used to be very unfamiliar with physical training, and this is why he can't stand it.

Later, after coming to Dortmund, he found that he could not practice physical fitness and could not even play youth team games, let alone first-team competitions. Zhou Yi then gritted his teeth and insisted on accepting boring physical training.

But his persistence will be rewarded.

In addition to the best short pass values, it is physical strength.

Zhou Yi's current physical strength is 71, which is almost the physical fitness of a qualified first-team player. Of course, can he play for 90 minutes in every game? It's another matter. At least he won't even be qualified to play in the first team.

Physical fitness is no longer an important factor that drags Zhou Yi back.

Zhou Yi saw it very clearly. Before starting the first-team training, his physical fitness was actually 64. In just one week, the value increased by seven points, indicating that the effect of this physical fitness training is very significant.

Zhou Yi was a little strange when he saw this progress - when did he be so talented in physical fitness? He always thought that he was the kind of player who had poor endurance and was not fast, but had a good brain. He did not rely on his body, but on his brain. Unexpectedly, he found that his endurance is much better than he imagined. Zhou Yi felt like "Did I make the wrong talent before?"

However, good physical fitness is always a good thing, because his football style requires a lot of running, so that he will not be replaced or disappear in the final stage of the game.

In addition to physical strength, Zhou Yi has also made good progress in strength.

Do you remember that Zhou Yi just owned this system and saw how much power data is?

Poor eleven.

Now his strength value is forty-nine, almost half of his full value. Although he is still not a strong player, it is much better than the previous ones when he hits. Moreover, Zhou Yi has invested more time in strength training than physical training.

In other aspects, crossing is not Zhou Yi's strength, only forty, and because of not being deliberately training, there are only fifty-seven shots, fifty-one header, and volleys forty-six.

Judging from the offensive data, when Zhou Yi transformed into the midfield to play in the organization, his foundation was still there as a striker. He just didn't deliberately train this ability.

Zhou Yi's data on defense is terrible, with ten people targeting people, fifteen steals, fourteen tackles, and nine interceptions.

Zhou Yi was not good at defense at first, and when he was in the youth team, his defense was at most "eye defense" and "stream of consciousness defense".

He has never practiced defense, nor has he considered developing on the defense side.

In terms of personal skills, Zhou Yi's dribbling is just fine, and he is fifty. He is not the kind of fancy ball king. He rarely practices several people with the ball alone in the game. His dribbling may only be used to get rid of the first defensive player and allow him to pass the football out.

In terms of arc, Zhou Yi's data is fifty-one, and he is also a normal player. He is not a player like Beckham who has very good arcs, but he is not very bad either.

In terms of free kick accuracy, Zhou Yi is only 41 because he has never practiced a free kick, he himself has no idea about this, and the team has not let him take the free kick.

Long passes are Zhou Yi’s weakness, with only forty-seven. It may be fine just looking at the data, but compared with the short passes of seventy-nine, it is too far behind.

Zhou Yi had 59 last year, which was pretty good. However, as long as Zhou Yi's ball control is affected by insufficient strength, because in football games, no matter how good the ball control technique is, if the opponent's reasonable collision will push you into, it cannot be considered "controlling the ball".

In terms of physical attributes, Zhou Yi's shooting power is fifty-two, which is just right.

It's fifty, it's just as ordinary.

I have said about physical strength before, seventy-one, it’s not bad.

The power is forty-nine, the long-range shot is forty-seven. They are all just the same.

Zhou Yi's progress in acceleration and sprint speed was very slow last, because the quality of speed was not much improved by acquired training. If you don't have talent, it is difficult to improve. Fortunately, the speed muscles in Zhou Yi's muscle fibers have a little advantage, so Zhou Yi's speed is not too unbearable. But after so long training, the increase is also very slow.

Acceleration 61 and sprint speed 60 are only increased by four points compared to when Zhou Yi just obtained the system. Judging from this growth rate, Zhou Yi will never be able to become a speed player like the "Alien" Ronaldo and Kaka in his life.

However, if you lose something, you will gain something. Zhou Yi is not good in terms of speed, but in terms of flexibility, balance and reaction, Zhou Yi is not bad.

Flexibility is seventy, reaction is sixty-eight, balance is sixty-nine. This may also be related to Zhou Yi’s low figure and not strong. Players who are too strong will definitely be affected in their flexible ratings.

In other attributes, Zhou Yi is 41, which is much higher than his initially. However, the psychological quality changes a lot, and the data is actually not accurate. This data is this day, and it may become another data after a day. Moreover, the slightness does not only refer to the tendency of being in defense, but also the degree of enthusiasm of participating in the offense. Zhou Yi has no tendency in defense, but after coming to Dortmund, he is becoming more and more active in participating in the offense.

The vision is still ninety-nine, and there is no change.

Zhou Yi has 47 penalty kicks, and he is not the type of player that any team will give priority to when punishing penalty kicks.

In terms of offensive position, Zhou Yi has sixty-six attributes, which is quite good.

In terms of total score, Zhou Yi has risen to 68.

As an eighteen-year-old player, this attribute is reasonable.
Chapter completed!