Leave him for a while.

The heat will naturally disappear.

What is flexibility?

The American domestic media are well prepared for this. They know when to report on the focus and when not to change it.

If you focus on reporting, our athletes' competitions are so stupid and miserable. That will give ordinary audiences the impression that American sports has declined sharply.

Then it's better not to play.

If you want to watch it, you can only watch it in Green's live room.

Green is getting bigger and stronger now, so naturally there are people going to live broadcasts of any kind of competition. He actually wants the official media in the United States to not broadcast the competition.

If you want to watch these games, you will naturally flock to your live broadcast room.

Then such popularity will increase.

Your own advertising fees and traffic revenue will also increase. Under the guidance of strength, how could he not broadcast? It must be broadcast! You must also increase the intensity of broadcasting!

"The last one is the flower-planting player, Wen."

"Although Wen has a big gap with Su in terms of strength, his personal 60-meter score is not small at all. He has won the bronze medal in the indoor world championship twice."

"This is an honor that many people will never get in their entire lives."

"He also has the name of the Oriental Dragon in Europe."

"It's just that in this game, Su, the main person, is here."

"He can only retreat to the second line."

"He has a rival in this game, such as Gatling."

"It's not that he is not strong enough, but the people who came today are too strong."

Wen Yongyi has nothing to say.

He knew that his strength was good among ordinary people, but he had to compare with these monsters...

That's still a little worse.

He just needs to get the chance to the finals.

Just fight hard in the finals.

Try to get one more Pb on top before your peak is over.

That's enough.

As for medals, he really never thought about this game.

...

"Okay, ladies and gentlemen."

"The final is about to begin."

"Let's hold our breath."

"See if Bolt can break Su's 60-meter invincible myth."

"Look at whether the Eastern Dragon will be defeated in this encirclement."

"Look at who will eventually fall in the Dragon Slaying Warriors."

"Look at who will hit the market with a market price of more than $1 billion."

"All this suspense will be fully revealed after this shot."

The commentator finished speaking.

Su Shen and others will also stand back on their starting machine.

At this time, the electronic speaker behind him also rang, and the electronic command sounds-

on your marks.

Long-term training has led to a high degree of adaptability between Sushen's nervous system and muscle system. Nerve impulses can be transmitted to the corresponding muscle fibers more quickly and accurately, prompting the muscles to contract rapidly and generate strength. At the same time, muscle fibers also undergo adaptive changes through training, such as the transformation of muscle fiber types.

That is, the transformation from slow muscle fibers to fast muscle fibers and the increase of muscle cross-sectional area enables the muscle to produce greater strength and faster contraction speed.

this……

Can it be trained???

sure.

Just like height, the natural proportion of weight, although it accounts for a large proportion, the acquired proportion is still quite large.

Like Su Shen, you can use your acquired nutrition training to grow taller.

What about the specific gravity of fast and slow muscles?

It's OK, too.

It's like starting with nerve impulse transmission.

Long-term training can improve the speed of nerve conduction. Repeated training at the synaptic neuromuscular junction between motor neurons and muscles makes the release and reception of the neurotransmitter acetylcholine more efficient. The speed of nerve impulses conduction along the axons involves changes in the degree of myelination. For example, long-term training can promote the thickening of nerve fiber myelin and accelerate the conduction of action potentials, just like wrapping a thicker insulating layer on the wire, so that the electrical signal nerve impulses are transmitted faster and more accurately, so that the muscles can receive contraction signals faster.

If you start with muscle contraction, the recruitment order and efficiency of a motor neuron and all the muscle fibers it innervates will change. After training, the nervous system can recruit more accurately those motor units that can generate greater strength and faster contraction speed. When explosive power is needed, the brain can quickly direct relevant fast muscle motor units to participate in the work.

After these are done, you can create your muscle fiber type according to a certain proportion.

For example, long-term strength or speed training can cause adaptive changes in muscle fiber types.

That's right.

Future scientific papers and the preface technology have proved that although there are indeed differences in speed and specific gravity between races, the biggest feature of this species is adaptability.

Start with adaptability.

It can change your original muscle fiber abilities to a certain extent.

Slow muscle fibers mainly participate in endurance activities, contain many mitochondria and rich capillaries, and are mainly aerobic metabolism; fast muscle fibers contract fast and have strong strength, and mainly rely on anaerobic metabolism to provide energy. Under the stimulation of long-term high-intensity and short-term explosive training, some slow muscle fibers will transform into fast muscle fibers, which is based on the metabolic enzyme system inside the muscle fibers and changes in the type of contractile protein. For example, some enzymes related to anaerobic metabolism, such as chlorothione phosphate, are more active in fast muscle fibers. After training, the distribution of these enzymes in the muscle fibers will change, which promotes the transformation of muscle fiber types.

This alone is not enough.

Further changes also increase muscle cross-sectional area.

Strength training will cause micro-damage of muscles and trigger the body's repair mechanism. During the repair process, muscle protein synthesis increases, the number and thickness of myofibrils will increase, causing the muscle cross-sectional area to increase. This muscle hypertrophy is mainly achieved through the activation of satellite cells. Satellite cells are myogenic stem cells. After the muscle is stimulated by damage, satellite cells are activated, proliferate and fuse with the original muscle fibers, increasing the number of nuclei of muscle fibers, thereby providing more support for muscle protein synthesis, making the muscles thicker, and thus producing greater strength.

This chapter is not over, please click on the next page to continue reading! And the smaller you start cultivating, the greater your probability of transformation and proportion will be.

Yellow races compare blacks and whites.

It also has its own particularity.

That means that the overall functions are relatively balanced.

All skills are relatively balanced, which means:

It is also more malleable.

As long as you train properly, you can transform yourself into any aspect.

This is a characteristic that blacks and whites do not possess.

But you have to learn how to transform.

How to transform scientifically.

Of course, Su Shen could not do it before.

No one has taught him this.

In addition to the extremely backward track and field, scientific concepts and training concepts in China, how old Su Shen was when he came into contact with him, he was almost retired.

Fortunately, it's different now.

He has been paying attention to this aspect almost since he was a child.

Since childhood, I have paid attention to the adaptation of my fast and slow muscles and the proportional transformation of my fast and slow muscles.

It was equivalent to that, from the beginning, he changed his physical adaptability and muscle adaptability to a sprint.

You didn't start doing this since you were a child. If you want to transform after you become an adult, it will become more and more difficult.

Plasticity will also become less and less.

This is because, although muscle fibers are likely to be transformed to a certain extent, the difficulty is definitely not low.

Myofibers type conversion is a complex physiological process.

Under normal circumstances, the muscle fibers in the human body are mainly divided into slow muscle fiber type 1 and fast muscle fiber type 2, among which type 2 can be subdivided into 2a and 2x subtypes. The transformation from slow muscle fiber to fast muscle fiber mainly involves the following aspects:

The first is the change of metabolic characteristics. Slow muscle fibers mainly rely on aerobic metabolism and are rich in mitochondria and capillaries to use oxygen to generate energy. Under the stimulation of long-term strength or speed training, the metabolic pathways in the cells change. The activity of enzymes related to anaerobic metabolism, such as phosphocreatine kinase, will gradually increase. These enzymes participate in the process of rapid energy supply, making muscle fibers more adapted to anaerobic metabolism, which is an important metabolic marker of the transformation to fast muscle fibers.

The second is the change of contractile protein. The contraction of myofibers depends on the interaction between actin and myosin. The subtypes of these contractile proteins in fast muscle fibers and slow muscle fibers are different. During the transformation process, the gene expression inside the muscle fibers changes, causing the composition of contractile proteins to gradually change to the characteristic protein of fast muscle fibers, resulting in an accelerated contraction rate.

In addition, changes in nerve innervation also play a key role. Motor neurons have a nutritional effect on muscle fibers. Changes in nerve activity patterns, such as long-term high-frequency stimulation, will affect the characteristics of muscle fibers. High-frequency nerve impulse stimulation prompts muscle fibers to adapt to this rapid contraction signal, which is also a factor in inducing the transformation of slow muscle fibers to fast muscle fibers.

At the same time, supplement creatine, β-amino acids and branched chain amino acids.
To be continued...