"How's it going, coach?"

Su Zu's chest and abdomen rose and fell violently, and he gasped for breath.

This is the morning of the first day, Su Zu only did one thing, running back and forth on the track repeatedly, 100 meters, 200 meters and 400 meters, first the test results, and then he kept running, running with all his might, running relaxed, jogging, and constantly running to Li Zhizhong.

"You rest for 5 minutes, wait 100 meters and run again." Li Zhizhong held a hard notebook, constantly writing and drawing, occasionally muttering for a while, and only then raised his head when he heard Su Zu asking.

Once he entered the formal working state, this coach with a bit of literary temperament changed as if he were a person. He doesn't smile, and his expression is serious.

Su Zu nodded, slowly relaxing his muscles around the runway, he didn't know what Li Zhizhong was recording, but guessed that it might be a problem to observe his running. After all, a coach must at least have a very intuitive and detailed observation of his athletes, and analyze various advantages and disadvantages before he can formulate a training plan.

At the end of another 100-meter run, Su Zu walked back to Li Zhizhong sweating profusely.

"That's it." Li Zhizhong closed the notebook in his hand and threw a towel from the duffel bag on the side of the runway to Su Zu.

"Xiao Su, now I have a question, when you were training in the sports school before, did you focus on project training?"

Su Zu wiped the sweat from his head, "What is the focus of project training?" No, it's all trained with other players, well, only later Coach Zhuang specially coached the problem of running posture. ”

"Hmm." Li Zhizhong bowed slightly, opened the notebook again, and glanced twice, "100 meters, 200 meters, 400 meters, which do you think is the easiest and most confident to run?" ”

"100." Su Zu wasn't quite sure what Li Zhizhong meant in his words, "I ran a lot of 100 meters, and the last invitational race in the province was also 100 meters. What's wrong, coach, do I have any questions? ”

"Nope." Li Zhizhong shook his head, "Sprinters generally train in several events, but there must be a key event among them, your 100 meters already have the level of a first-class athlete, but there is still a lot of difference between 200 meters and 400 meters." And I just observed that your advantage is that you have a fast cadence after starting, fast acceleration, and the ability to reach the top speed faster, which is a big advantage in 100 meters at present. ”

"Then coach, do you mean that I will focus on 100 meters in the future?"

"Yes, the 100m, 200m and 400m are all listed in the sprint event, but there is still a gap between them. The simplest one, your current cornering skills are at least 0.3 seconds behind the special 200m and 400m runners. ”

"Because the distance of 100 meters is short, more attention is paid to explosiveness, starting reaction, starting acceleration, because the distance is too short, if you are a little slow, it will be difficult to catch up later. A 0.1-second gap in starting reaction will allow the opponent to seal the victory. In the case of the 100 meters, our next training plan will mainly revolve around this, and it is too early to say whether we want to do other events. Li Zhizhong made a detailed analysis to Su Zu.

Su Zu has no problem with this, he runs a lot in the 100 meters, and his results are relatively better, and he feels that the speed and endurance in the second half of the race are not strong points. Of course, it is to expand one's own strengths to train in a targeted manner.

"Let's go, come with me to the transport medical center, and then we will do some physical examinations." Li Zhizhong patted the notebook in his hand, turned around and walked towards the outside of the training ground.

"The Transporting Hospital?" Su Zu was a little puzzled, this name was the first time he had heard of it, and he trotted a few steps to catch up with Li Zhizhong, who was walking in front.

The two came out of the training ground of the competition management center, walked through several buildings in a row, and walked to an office building.

There are plaques with red letters on a white background on both sides of the door, "Pilot Institutions of the General Administration of Sports of the People's Republic of China, Sports Medicine Research Units Directly under the Hedao Athletic Sports Center".

"Institute of Sports Medicine." Su Zu understood the full name of the title of the Yun Medical Institute.

Li Zhizhong briefly introduced to Su Zu the Sports Medical Institute, which is a public institution directly under the competition management center, whose main work functions are athletes' medical treatment, sports medicine research and athletes' nutrition research. Some of the more cutting-edge high-tech products will also appear in the transportation medical center.

This is only the sports medical institute in Hedao City, if the sports medical institute of the General Administration of Sports of the national team is even more advanced, with medical supervision and sports trauma laboratory, sports nutrition laboratory and other laboratory departments that have not heard much, and many scientific research topics of the General Administration, the Ministry of Science and Technology and the National Natural Science Foundation of China are closely related.

Su Zu was a little stunned when he listened, and a feeling of high-end atmosphere and grade arose spontaneously, a city team was even equipped with such a research department.

"Don't be surprised, the players of the national team sometimes train here in Hedao City, and they can be used." Li Zhizhong understood Su Zu's thoughts and opened his mouth to explain.

It's no wonder that the athletes of the national team in various events not only stay in the imperial capital, but also conduct training at various bases across the country, and all kinds of supporting facilities need to keep up. Hedao City is also one of the training bases, and the city has hosted many large-scale long-distance running events in later generations, so it is not surprising to think of this.

After entering the Yun Medical Center, Su Zu found that this place was much bigger than he thought, and the offices of various departments were dizzying, and he was not much more worried than ordinary small hospitals.

At the door of a room on the second floor that was listed as a sports medicine research room, Li Zhizhong stopped and knocked on the door on the side.

"Xiao Feng, come and do me a favor."

Sitting in the room was a young woman of twenty-five or sixteen, wearing a pair of rimless glasses, who saw Li Zhizhong at the door, and immediately smiled: "Coach Li, it is rare for you to come to our office." ”

"Didn't I do physical training for the swimming team before, and I couldn't get out of it." Li Zhizhong replied with a smile, "I have a team member here, and I want you to help me do some project tests." ”

"Okay, your Coach Li speaks, how dare I say no." Feng Xinyue simply stood up and glanced at Su Zu by the door again, "This is your new disciple?" ”

"Well, yes. Coach Shen of the provincial team recommended it to me. This just arrived yesterday, so I hurried over to take a test while it was still a working day. Li Zhizhong replied with a smile.

"Then you two come with me." Feng Xinyue led the way.

First did some routine tests and physical examinations, these Su Zu also did one last time in the provincial team, not unfamiliar, but the next ones have not been seen, in a room full of various equipment and instruments, hands and feet with electrodes on the chest on a treadmill-like sensor to test the level of physical function in sports.

What really opened Su Zu's eyes was an instrument that was a bit like a scanner, called a dual-energy X-ray absorptiometry, which was used to detect bone density and body fat percentage.

It took more than an hour for the test to be completed.

Bidding farewell to Dr. Feng who helped with the test, Li Zhizhong and Su Zu left the medical center with a bunch of physical examination reports. Some of them also have reports like **ketone content, which will not be available until a few days later.

After Su Zu stood up with a barbell of 80 kilograms on his back, Li Zhizhong put the barbell on his back and stopped directly. Only squats made Li Zhizhong quickly give up the strength test later.

"Your body fat percentage is okay, 11.4%, and you can drop it again in the future." In the lounge of the gym, Li Zhizhong held a report card and analyzed the value of his current body with Su Zu.

Teenagers of Su Zu's age group have a lot of exercise, are in the stage of physical development, and the fat rate of their own body is not too high.

Generally speaking, the body fat percentage of normal adult men is 15%-18%, and the body fat percentage of top competitive athletes is below 10%. The famous football star Jordan has a body fat rate of 6%. Ronaldo's body fat percentage is only 7%.

If you want to reach the top level, in addition to a lot of scientific training, you also need to have a reasonable diet control.

"However, according to your height, you weigh only 63 kilograms, which is too thin and too little muscle. If you don't have muscle, you don't have enough strength. Sprinting is not good without strength. ”

Su Zu looked at himself, 63 kilograms, which is already the result of weighing almost 10 kilograms in the sports school, because of the growth height, the body fat rate is also okay, and the overall person looks thinner.

"Coach, what do you think, how much do I have to do bench press squats, and what level of weight do I have?" Su Zu asked.

"According to your current height, the body fat rate remains the same, and the weight must be more than 75 kilograms, and it is best to reduce the body fat again, otherwise the strength is completely insufficient." Li Zhizhong replied while flipping through the various test data of this Su Zu. "Squats and bench presses, such heavy weights, you haven't trained well before, it doesn't make much sense. For example, Morris Green can squat 190kg, you do the math yourself. Of course, sprinting isn't just about squatting, but you can't even be inferior to others. ”

In fact, according to Su Zu's age and weight, the results of this squat are already okay. But for a professional athlete who sprints, it's still not enough.

"You don't have to worry about the diet, I'll find a recipe for you when I go back. I sort it out, and there's only one focus on what we're going to do, strength. Your bones are well developed and you are able to do strength training at high intensity. You must know that without strength, you can't run fast. Once you've reached a certain level of strength, we'll move on to the next stage. ”