On both sides of the runway, cameras with high multiples have been erected, ready to record all the running processes of the players on the field.

In the process of a group of fast running, many details of the running problem through the naked eye is difficult to see clearly, even the top coach, some small places can not see the problem at a glance.

At this time, what is needed is a frame of slow shots, constantly analyzing the movement of the runners 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 his own recorded running video.

This is a focus of his current learning, through the video and then combined with their own running experience, little by little on the details of the improvement.

IMG Academy is also very welcome to have top athletes such as Ye Qin to train here, on the one hand, Ye Qin itself is a star customer of IMG and has a great influence all over the world.Just as IMG Academy has moved out of Sharapova, a tennis star, the influence of star athletes to enhance a training institution is very significant.

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

"You run this link from the acceleration to the way, I think it is still a little slower, and the arms can be more smoother."

Yuan Guohua sat next to Ye Qin and pointed his finger at the computer screen.In the screen, Ye Qin just finished the route video, in the slow lens, you can see Ye Qin from the beginning to the acceleration, to the way to the whole process of running.

"I don't think I'm strong enough, and I feel like I can do it faster."

Ye Qin looked at him for a while, grabbed his hair, thought for a while, and asked Yuan Guohua tentatively.

“Probably.”Yuan Guohua nodded, he did not interfere with the training program of the coaching staff here during his time at IMG Academy, but recorded the video, which he also had in analysis.

At the level of Ye Qin, many times it is not obvious defects and weaknesses, and it can point out the problem in three words and two words, but it requires constant trying and analysis.

"Your current physical condition can still add a little more muscle and increase the strength of the muscles."However, this may affect your performance of 400 meters to a certain extent."

Osaka World Championships Ye Qin ran for the first time in 44 seconds, and then in training he basically did not run into this result, even in the training test, the best score is about 44 seconds 10 or so.

On the one hand, the training is not comparable to the competition, the body may not be completely excited, and Ye Qin in the training side of the focus on explosive power and short-distance running, his self-feeling is also vaguely affected.

“Hi, Ye, and Yuan, you are here, great!”I have a message for you."

While Ye Qin and Yuan Guohua were discussing their running skills, Haydn-Kom, the coach of IMG Academy, who led the training of the Chinese track and field team, held an A4 paper and looked excitedly to find the two.

“What happened, Haydn?”Ye Qin asked in some doubt.

"We have unlocked the secret of your body."Haydn-Com handed the A4 paper in his hand to two people, "This is an analysis sheet for your muscles, you can look at it."

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

It was a muscle scan he had done after he came to IMG College, and for the physical secrets of a top athlete like him, almost every training institution and research institution dreamed of unlocking it.

The report listed a large list of data, Ye Qin looked at it, although some professional terms can be understood, but he is not a medical professional, or can not see particularly thorough.

Next to Yuan Guo Hua's eyebrows are also crammed together, as a top coach, he relies on more or empirical teaching, for this all-round release of human muscle composition scanning, is also not particularly understanding.

“Let me explain it to you.”Haydn-Com also expected that the two people may have a lot of questions about this, to be honest, some of the detailed content in this, the general coach knows absolutely not much.

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

Ye Qin nodded, this year or two came, he has done some research with the Waterwood University and the Training Bureau, and he still knows this.

Of course, it is not particularly in-depth, after all, the domestic sports science, especially the exercise physiology, is still in a relatively primitive stage.

The muscles required for long-distance running and sprinting are not the same, and the ability to determine the human body's long-distance running and sprinting is mainly red and white muscles, long-distance running needs red muscles, and sprinting needs white muscles.

"This is just two large classification, according to the activity function of the bone arm muscles and according to the shape of the bone and arms, you can have a more detailed division, you see this inside..."

Haydn - subjects on the one hand than the A4 paper on the above, while detailed explanation.

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

Simply put, white muscle fibers belong to the motor nerve unit, responsible for random movement, cross-section is thicker, so the muscle group is easy to develop and strong.White muscle fibers contain more muscle fibers, while myoglobin and cytochrome are less, and the shrinkage during exercise is fast and powerful, strong explosive, but the durability is poor.It is the type of muscle that sprint athletes need.

The red muscle fibers are tensile motor neurons, which are responsible for maintaining the tension posture, also known as the slow movement unit.Red muscle fibers contain more memoglobin and cytochrome, less muscle fibers, red muscle fibers shrink slowly during exercise, and the explosive power is not strong, but they can be persistent and hard-working.Long-distance runners mainly need this type of muscle.

But this is only the difference between the two categories, meticulously speaking, according to the activity function of the bone arm muscle, the type of bone and arm muscle fiber should be divided into slow shrink muscle and fast-shrinking muscle, of which the slow-shrinking muscle belongs to the red muscle, and the fast-shrinking muscle is inclusive of the red muscle and white muscle.

For motor function muscles, division can be classified as slow red muscle, fast shrink red muscle and fast shrink white muscle three categories.

Slow red muscle has high aerobic ability and fatigue resistance, but poor glycolysis (aerobic) ability, slow shrinkage, and low muscle strength per unit of exercise, is a low-intensity, long-term movement of muscle type.

The fast-shrinking white muscle has the highest glycolysis (oxygenated) ability and the motor unit muscle strength, but it is poor in aerobic capacity, shrinkage speed, and fatigue resistance, and belongs to the type of muscle with high strength and short-term movement.

The fast-shrinking red muscle has the advantages of two muscle types at the same time, between the two.

The proportion of the three types of bone arms in the average person is 50%, 25% and 25%, which is the highest proportion of slow-shrinking red muscles.

Some long-distance runners may have 90% of slow muscle fibers and 10% of their fast muscle fibers.Some runners may be 70% slow muscles and 30% fast muscles.Conversely, runners who are part of sprinting may have 80% of the fast muscle fibers and 20% of the slow muscle fibers.

"Ye, you are one of the world's top sprinters, you probably know that part of your body has more muscle?"Haydn-Com, after speaking some knowledge of the red and white muscles, opened his mouth to Ye Qin.

"Fast muscle fibers are more."Ye Qin replied.

“Yes.Your fast-muscle fiber content is the highest in the world, and your slow-muscle fiber is very low.”Haydn-Com nodded, then asked, "Then you think about it, when you run 200 meters or 400 meters, why in the final stage, when everyone else is sprinting, why can you sprint up?"Your speed-maintenance ability is better than most sprinters, and by the composition of your muscle fibers, you may run 100 meters better than you can do better.”

Saying, not waiting for Ye Qin to answer, he continued, "That's because you have more fast-shrinking red muscles in your fast-grim fiber than many sprinters, and the fast-scorched white muscle gives you a strong explosive power and speed ability, and the fast red muscle gives you a very good speed to maintain."

Haydn-Cham was completely excited, "this is the secret that you can combine men's 100 meters, 200 meters and 400 meters."It not only gives you strength and speed, but you can hold him.”

On the one hand, he explained with Ye Qin and Yuan Guohua, and Haydn-Kom explained the fast-shrinking red muscle between the fast-shrinking white and slow-shrinking red muscles.

Each person with different genes, the way they are born and moves, and muscle fibers begin to differ.Some people are born with more fast muscle muscles, is a muscle stick suitable for raising dumbbells, and some people have more slow muscles, which is a superior endurance athlete.

But these differences can be fine-tuned to change, that is, whether a person's muscle type is more white or red muscle, in addition to the innate quality, but also through training to change.

Simply put, a person for a long time long-distance running training, his red muscle will gradually increase, and sprint training, his white muscle will increase.

The process of this change is mainly derived from the fast-shrinking red muscle in the fast shrinkage muscle, which can be converted towards the fast-shrinking white muscle, and can also be changed towards the slow shrinkable red muscle.

After listening to Haydn-Com's explanation, Ye Qin fully understood the characteristics of his own muscle group.His fast-bodied fibers are more than the average sprinter, but this part of it is not a pure fast-shrinking white muscle, but a fast-shrinking red muscle.

This allows him to have a strong speed ability at the same time, but also has the aerobic ability brought by the fast red muscle and the fatigue resistance.

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

“This is good, this is good!”Yuan Guohua listened to Haydn-Kom's explanation next to him, and nodded his head, and showed a happy smile on his face.

This analysis is the most useful harvest he has come to IMG College so far.

After this analysis of the body muscle group, Ye Qin became clear about the focus of future training.

Just as he focuses only on 100 meters and 200 meters, then his fast-shrinking red muscle can gradually overdo the fast-shrinking white muscle, further improving his speed ability.

To focus on 400 meters, in the 400 meters to have a prominent performance, you can carry out appropriate long-distance training, so that his fast-shrinking red muscle toward the slow shrink red muscle excessive, improve his endurance level.