(a)

In the first ten minutes of the game, Vanney appeared in important positions many times to organize and direct the defense, not only did not have too much rustiness, but seemed very familiar.

In terms of fitness, Ruud van Nistelrooy feels good, and organising and directing the defense is very different from relying on individual ability to run and grab points, not only a matter of mentality, but also a scientific basis.

Human muscle types are roughly divided into three types, one is called slow-contracted red muscle, one is called fast-contracted red muscle, and the other is called fast-contracted white muscle. The average person has 50%, 25% and 25% of these three muscles, respectively.

The reason why people feel fatigue is very related to the content of muscle type, generally speaking, when people exert a slight force, they always participate in the contraction of the red muscle first, producing liliang, and with the increase of the strength of the skeletal muscle, the fast contraction of the red muscle is the pink muscle and the white muscle to participate in the contraction force.

Of the three muscle types, slow-contracted red muscle has high aerobic capacity and resistance to fatigue, but poor glycolytic capacity (anaerobic capacity), slow contraction, and low muscle strength per motor unit make it a low-intensity, long-duration muscle type.

Among the three types, the fast-shrinking white muscle has the highest glycolytic capacity (anaerobic capacity) and the highest muscle strength per motor unit, but it has poor aerobic capacity and low fatigue resistance, and belongs to the muscle type of high-intensity and short-term exercise.

For example, the proportion of red muscle, which is endurance muscle, can reach 90% in many marathon runners, which is the result of acquired exercise.

Red muscle can reach 90%, which is the tested limit, and white muscle is fast twitch muscle, according to current data, the proportion of white muscle in black people can reach up to 80%, and the fast muscle content of white and yellow people has been found to be the highest only 70%, which is one of the reasons why sprinters are mostly black.

There is also a third muscle, pink muscle, which has the advantages of both red and white muscles, that is, explosive power and staying power, which is the type of muscle needed for sports such as boxing and martial arts.

This muscle has a fast metabolism, and the cost of switching through diet and exercise is higher, and the nutritional structure type, protein, starch and fiber of breakfast, lunch and dinner need to be strictly proportioned.

Chen Zhuo and Fanny's strength and conditioning coach and nutritionist Rebecca is an expert in this area, and according to the research of the Sports and Health Center of Spanwitz's agency, it is also beneficial to effectively increase the proportion of pink muscles in a fiercely competitive sport such as football and basketball, in addition to maintaining a moderate amount of fat for consumption during strenuous exercise.

(b)

After switching from defender to striker, Vanney did strengthen the transformation and practice of explosive muscles, that is, white muscles, but with age, the proportion of white muscle fibers gradually decreased, and it was difficult to maintain.

This is also a scientific law, many long-distance runners are still racing at a very old age, and there are even examples of long-lived elderly people participating in marathons, but sprinters are rarely able to run well after the golden sports age, which is not a problem that nutrition and training can solve.

Compared with white muscles, pink muscles will decline more slowly in various sports indicators, like some professional fighters who can rely on reasonable tactics to defend the gold belt around the age of 40, which is the reason.

In Germany for more than two months, not only the improvement of jishu and tactics, but also the physical fitness of Rebecca, a physical trainer and nutritionist, is also a great gain for Chen Zhuo, Fanny has only signed a contract with Spanwitz for about two years, and the reason why he changed his agent at this age, Spanwitz's physical training and nutrition package that can prolong the life of sports is an important reason to impress Fanny.

(c)

Not only is Fanny's physical fitness problem, Chen Zhuo is also allowed to play today after double confirmation by the team doctor and Rebecca, since knowing the news that Xiaomeng is in the Yushu disaster area, Chen Zhuo always feels that his body is very heavy in the past few days of training, and the quality of sleep at night is not as good as before.

I dreamed several times that I was looking for someone in a pile of ruins, looking for Xiaomeng, as well as my parents, grandparents, and brothers and sisters of Zhan Ge and Zhan Hong were also shouting about themselves, but I could only hear the sound but not see anyone......

Chen Zhuo, who woke up in a panic, was finally sweating profusely, and every time he woke up, he would call Xiao Meng to go over, regardless of the time difference, but the early morning in Germany is usually the morning of Beijing time in China, and the time is not abrupt, Xiao Meng will answer the phone and comfort him with a few words and go to get busy, for Chen Zhuo, he can sleep soundly after hearing Xiao Meng's voice......

Or is it a matter of time difference, in the past, Chen Zhuo slept at about 11 o'clock in the evening, at this time it was 4 o'clock in the morning Beijing time, and it was obviously inappropriate to call at this time, and it would be around 6:30 o'clock at the latest, so in the past few days, Chen Zhuo either slept after making a phone call at about 2 o'clock German time, or he woke up from a nightmare at about two or three o'clock and then made this call, in short, it was very toss-up.

Each phone call is at most half a minute, and now it is the golden seventy-two hours, although Xiao Meng and they are not saving people on the front line, but the smooth flow of communication equipment is also an important task, and it cannot be delayed at all, so Xiao Meng really doesn't have time to talk to Chen Zhuo for even a few minutes.

Chen Zhuo knew in his heart that although he had done his best to adjust his mentality, it was impossible to say that there was no pressure on his shoulders, and Xiaomeng's safety would not affect his state at all, which was unrealistic.

In general, Rebecca's role in this case came into play, at noon on the day of the game, Rebecca alone did a hypnotherapy for Chen Zhuo, so that Chen Zhuo had an hour of deep sleep in the massage room, don't look at the treatment of just one hour, the effect is very good, Chen Zhuo felt energetic, compared with the previous few days of training, the state has improved a lot.

Chen Zhuo has already asked the Hamburg club to strengthen the player's physical fitness and nutrition by Rebecca during the month of Zuihou, and Hoffman also readily agreed, although Spanwitz's offer was not low, but Hoffman agreed without being verbose.

However, according to Rebecca, physical training and nutrition are not something that can be achieved overnight, and all Rebecca can do now is to give a suggestion based on the physical condition of specific players, and she has no way to provide services to all the players of the Hamburg team like Chen Zhuo and Vanney.

In addition, Rebecca pointed out that many players have smoking, alcohol and other bad habits that damage their athletic life, and their physical fitness and condition are declining faster than theoretical, which can not be completely changed in a short time.

(iv)

In terms of physical fitness, the scientific strengthening, and the tactical design is obviously basically effective, the two strikers use speed to run with the opposing defender, stop, and run again, and when there is no chance, they pass back and pass back, and they are patient to change the direction to change another striker and continue to impact and break through......

This kind of short-distance fast switchback run has a great physical consumption on both players, but in Chen Zhuo's purposeful consumption through tactics, the players of the Hamburg team who impact the opponent are basically substitutes, and Ze Roberto, Demer, Vanney and Chen Zhuo on the axis are more in command and left and right scheduling, and their physical strength is not particularly large.

Tuchel watched for almost 20 minutes, a little bit slowly figuring out the doorway, a few veteran players on the central axis were controlling the game through each other's cooperation and wide passes, they didn't run too much of their own, Ruud van Nistelrooy was running all over the field in the opening period, and then slowly really commanded and dispatched at the back.

Whenever the Hamburg team makes a mistake in passing and receiving the ball and is taken control by Mainz, the first line of defense is two fast forwards who quickly rush over to block and grab, and then Ze Roberto directs the players in the midfield to form a second blocking line, either destroying the sideline to let Mainz take the ball out of bounds, or forcing Mainz to make a mistake and then take away the possession, if neither of them works, then the foul, but the foul action is not a malicious and hurtful action, and the proportion is very good.

The characteristics of the Mainz midfielder's rapid scramble and counterattack were mixed by Hamburg's style of play, and the game was constantly interrupted by the referee's whistle, which was not smooth at all.

Under this kind of pressing of the opponent, it is too difficult to advance to the opponent's front court by relying on cooperation and penetration, and the players of Mainz began to use the routine of diagonal long passes in a hurry.

The diagonal long pass itself is Mainz's offensive routine, but the distance of the pass initiation point is slightly farther away, and Demer and Vanney control the landing point is very good, this kind of attack only allows the two strikers to sprint again and again to grab the point, and again and again to no avail.

In the first half of 35 minutes, both sides still did not score, the two sides were about the same in terms of possession, Hamburg 53% Mainz 47%, the advantage is not obvious, Mainz 3 corner kicks, 1 more than Hamburg, in terms of free kicks, Mainz has 2, but they are not in the danger zone, Hamburg team does not have a free kick in front. In terms of shots, Mainz had 5 shots on goal, none of which were on target, and Hamburg's stats were even more unsightly, with only 2, and the rest of the time the players couldn't score and then passed back and started all over again.

Defensively defending but then slowing down when he grabbed the ball, this fast and slow pace made the Mainz players and coach Tuchel a little uncomfortable, Tuchel repeatedly protested that the referee was too merciful for the Hamburg team, and he didn't know what he could do.

In the first half, Hamburg committed 16 fouls in the frontcourt, 10 of which were near the halfway, 2 in his own half, 4 near the opponent's penalty area, and only received a yellow card for 16 fouls.

With such a bunch of data and not a wonderful game, the two sides entered the halftime time, which was not exciting, but for Chen Zhuo, the tactical purpose has been fully achieved.