Born to Run

? On both sides of the runway, high-magnification cameras have been set up, ready to record all the running processes of the players on the field at any time.

In the fast running process of a group, many details of running problems are difficult to see clearly with the naked eye, even for top coaches, there are some subtle points that cannot be seen at a glance.

At this time, what is needed is a frame by frame slow motion to continuously analyze the player's movement state in the running, in order to find the shortcomings and improve them.

After running seven or eight times, Ye Qin did not continue to run, but went to the sidelines to watch the running video he recorded himself.

This is an important point of his study now. Through video recording and combining his own running experience, he can improve and improve little by little details.

The IMG Academy welcomes top athletes like Ye Chin to train here. On the one hand, Ye Chin himself is a star customer of IMG and has great influence all over the world. Just as IMG Academy moved out Sharapova’s tennis star at every turn, star athletes are very significant in enhancing the influence of a training institution.

On the other hand, the training materials for top sprinters are also very good accumulation for coaches.

"From the acceleration to the midway run, I think it's still a bit slower, and the swinging of your arms can be more fluid."

Yuan Guohua sat beside Ye Qin and pointed his finger at the computer screen. In the video of the route that Yeqin just finished running on the screen, in slow motion, you can see the whole process of Yeqin from starting to accelerating to running on the way.

"I don't think my strength is enough, it seems that I can go faster."

After watching for a while, Ye Qin scratched his hair, thought for a while, and asked Yuan Guohua tentatively.

"Maybe." Yuan Guohua nodded. During his stay at IMG Academy, he did not interfere with the training plan of the coaching staff here, but he was also analyzing the recorded video.

Athletes at Yeqin's level often no longer have obvious flaws and weaknesses, and can point out the problem in a few words, but need constant experimentation and analysis.

"In your current physical condition, you can still increase your muscles slightly to increase the strength of the lower muscles. However, this may affect your 400-meter performance to a certain extent."

Yechin ran into 44 seconds for the first time in the Osaka World Championships. After that, he basically never ran into this score again during training. Even if it was tested during training, his best score was probably around 44 seconds 10. .

On the one hand, the training is not competitive, the body may not be fully excited, and the other is that after Ye Qin's training focuses on explosive power and short distance running, his self-feeling is also vaguely affected to a certain extent.

"Hey, Ye, and Yuan, you are here, great! I have a message for you to speed up."

While Ye Qin and Yuan Guohua were discussing their running skills, Haydn Kerm, the coach of the IMG Academy who led the training of the Chinese track and field team, took an A4 paper and found them excitedly.

"What's the matter, Haydn?" Ye Qin asked questioningly.

"We have solved the secret of your body." Haydn-Kom handed the A4 paper in his hand to the two of them. "This is an analysis report for your muscles. You can take a look."

Ye Qin took the A4 paper handed over by the other party and watched it up and down carefully.

This is a muscle scan medical examination that he has done after he came to IMG Academy. The secrets of the body of a top athlete like him are what almost every training institution and research institution has dreamed of unraveling.

The report lists a large number of data. Ye Qin took a look at it. Although some technical terms can be understood, he is not a medical professional, so he can't see it thoroughly.

Yuan Guohua's brows are also frowned. As a top coach, he relies more on experience teaching. He also doesn't particularly understand this kind of scan that reveals the composition of human muscles in all directions.

"I'll explain it to you." Haydn-Kom probably also expected that the two might have a lot of questions about this. To be honest, the average coach does not know much about the detailed content.

Reaching out and tracing a column on the A4 paper, he said, "I think you probably all understand that the red and white muscles that determine our long-distance running or sprinting are mainly red muscles and white muscles."

Ye Qin nodded. Over the past two years, he has done some research in cooperation with Shuimu University and the Training Bureau, and he still knows this.

Of course, they are not very in-depth. After all, the domestic study of physical education, especially exercise physiology, is still at a relatively primitive stage.

The muscles required for long-distance running and sprinting of the human body are different. The red and white muscles are the main factors that determine the ability of long-distance running and sprinting. For long-distance running, red muscles are needed, while sprinting needs white muscles.

"These are just two big categories. According to the activity function of skeletal muscles and according to the type of skeletal muscles, there can be more detailed divisions. Look at this..."

Haydn-Subject gave a detailed explanation while gesturing the content on the A4 paper.

Ye Qin and Yuan Guohua listened carefully to each other's explanation, and raised some questions from time to time, and finally understood what Haydn-Kom said.

Simply put, the white muscle fibers belong to the motor motor nerve unit, responsible for voluntary movement, and the cross-section is relatively thick, so the muscles are easy to develop and thick. White muscle fibers contain more myofibrils, while myoglobin and cytochromes are less. They contract fast and powerfully during exercise, have strong explosive power, but have poor endurance. It is the main muscle type needed by sprint athletes.

Red muscle fibers belong to tension motor neurons, which are responsible for maintaining tension posture, and are also called slow motor units. Red muscle fibers contain more myoglobin and cytochromes, and less myofibrils. Red muscle fibers contract slowly during exercise and have weak explosive power, but they can last for a long time. Long-distance runners mainly need this type of muscle.

But this is just the difference between two categories. To be more specific, according to the activity function of skeletal muscles, the types of skeletal muscle fibers should be divided into slow contractors and fast contractors. The slow contractors belong to the red muscle. Fast contractors include red and white muscles.

For motor muscles, it can be classified into three categories: slow red muscle, fast red muscle, and fast white muscle.

Slow red muscle has high aerobic capacity and fatigue resistance, but it has poor glycolytic (anaerobic) capacity, slow contraction speed, and low motor unit muscle strength. It is a type of low-intensity, long-term exercise muscle.

Fast contraction white muscle has the highest glycolytic (anaerobic) capacity and motor unit muscle strength, but it is poor in aerobic capacity, contraction speed, and fatigue resistance. It is a type of muscle that is high-intensity, short-term exercise.

Fast contraction red muscle has the advantages of both muscle types at the same time, somewhere in between.

The proportion of the three types of skeletal muscles of the average person is about 50%, 25% and 25%, which means that the proportion of slow contraction red muscle is the highest.

Some long-distance runners may have 90% slow-twitch fibers and 10% fast-twitch fibers. Some runners may have 70% slow muscles and 30% fast muscles. Conversely, runners who belong to sprinting may have 80% fast-twitch fibers and 20% slow-twitch fibers.

"Ye, you are a top sprinter in the world. You probably know which part of your body has more muscles?" Haydn-Kom asked Yeqin after finishing some knowledge about red and white muscles.

"There are more fast-twitch fibers," Ye Qin replied.

"Yes. Your fast-twitch fiber content is the world's top level, and your slow-twitch fiber content is very low." Haydn-Kom nodded, and then asked, "Then have you thought about it, before you run 200 meters or At 400 meters, why are you able to sprint in the final stage when others are still sprinting? Your speed retention ability is better than most sprinters. According to your muscle fiber composition, you may run 100 meters will give you more results."

He said, without waiting for Ye Qin's answer, he continued, "That's because there are more fast-twitch red muscles in your fast-twitch fibers than many sprinters. The fast-twitch white muscles give you powerful explosive power and speed ability. Muscle gives you a very good speed retention ability."

When talking about this, Haydn-Kom was already completely excited, "This is the secret of your ability to compete in men's 100 meters, 200 meters, and 400 meters. Not only can you have strength and speed, but you can also keep him. ."

While explaining to Ye Qin and Yuan Guohua, Haydn-Kom also explained the fast contraction red muscle between fast contraction white muscle and slow contraction red muscle.

As each person is genetically different and born with a different exercise pattern, muscle fibers will begin to appear different. Some people are born with a lot of fast muscles and white muscles, which is a muscular stick suitable for lifting dumbbells. Some people have more slow muscles and are superior endurance athletes.

But these differences can be fine-tuned and changed, that is, whether a person's muscle type is more white or red, in addition to natural qualities, it can also be changed through training.

Simply put, if a person is trained for long-distance running, his red muscles will gradually increase, while for sprint training, his white muscles will increase.

The process of this change mainly comes from the fast-twitch red muscle in the fast-twitch muscle. It can change to the fast-twitch white muscle or the slow-twitch red muscle.

After listening to Haydn Kerm's explanation, Ye Chin fully understood the characteristics of his own muscles. He has more fast-twitch fibers than ordinary sprinters, but the extra part is not pure fast-twitch white muscle, but fast-twitch red muscle.

This allows him to have a strong speed ability and at the same time ~www.wuxiaspot.com~ can also have the aerobic capacity and fatigue resistance brought by the fast contraction red muscle.

Therefore, compared with the special 400m athletes, his speed is faster, but compared with the special 100m athletes, he has a strong ability to maintain speed.

"This is good, this is good!" Yuan Guohua listened to Haydn Kerm's explanation beside him, nodding his head again and again, with a happy smile on his face.

This analysis is the most useful harvest he found so far when he came to IMG Academy.

Through this analysis of body muscles, Ye Qin became clear about the focus of future training.

As if he only concentrates on 100 meters and 200 meters, then his fast contraction red muscle can gradually become excessive to the fast contraction white muscle, further enhancing his speed ability.

If you want to focus on 400 meters and have outstanding performance at 400 meters, you can perform appropriate long-distance training to make his fast red muscles move to slow red muscles, and improve his endurance level.