Let’s take the asynchronous arm swing as an example.

Set the starting time, swing amplitude, angular velocity change curve and other parameters of the right arm swing.

At the same time, set parameters corresponding to the left arm but with phase difference.

Through the setting of these parameters, the movement of each part of the human body under asynchronous motion can be accurately described, providing a data basis for subsequent mechanical analysis.

This is what Xie Zhengye does now.

I saw that during asynchronous movement, the body mass distribution continued to change due to the abnormal synchronization of the movements of various parts of the body.

When the right arm swings ahead, the mass of the right arm is away from the longitudinal axis of the body during swinging, causing the moment of inertia of the body to instantly increase; while the left arm swings relatively behind, the influence of its mass distribution changes on the moment of inertia is not synchronized with the right arm.

This asynchronous change in the moment of inertia on the left and right sides causes the overall moment of inertia to fluctuate during the movement, providing a basis for the change of angular momentum.

Bang bang bang bang bang bang bang.

Bang bang bang bang bang bang bang.

Mr. Su told himself.

The change in angular velocity is closely related to angular acceleration. In asynchronous dynamics, due to the asymmetry and out-synchronization of various parts of the body, angular accelerations of different directions and sizes are generated.

So.

Now the muscle moment generated when the right arm swings makes the right arm angular acceleration, which can then change its angular velocity.

At the same time, due to the integrity of the body and the connection between joints, this angular acceleration will be transmitted through the body, affecting the angular velocity of other parts.

Due to the asynchronous swing of left and right arms, the angular velocity of the overall body shows a complex trend of change, and the angular momentum increases during this change.

Bang bang bang bang bang bang bang.

Speed ​​zone.

In asynchronous dynamics, the timing of muscle contraction and dilation is not synchronized.

When a part of the body muscles exert force first, the part of the body gains a certain amount of kinetic energy, and then another part of the muscles exert force at different moments, increasing kinetic energy for other parts of the body.

The energy input at these different moments continues to accumulate, providing an energy basis for the increase of angular momentum, because according to the relationship between energy and angular momentum, more energy inputs can be converted into greater angular momentum.

The asynchronous movement of various parts of the body makes the mutual conversion between elastic potential energy and athlete's kinetic energy and gravity potential energy more complex and efficient.

In human body movement, the human body can be regarded as a multi-body system composed of multiple subsystems, such as the upper limb system, the lower limb system and the trunk system.

In asynchronous dynamics, the synergistic effects between these subsystems are more complex and refined.

Just like now.

Start maintaining extreme speed.

There is asynchronous swing of upper and lower limbs.

This asynchronous swing leads to a specific coupling relationship between the subsystems.

Able to generate additional torque.

This increases the angular momentum of the entire body.

Improve running efficiency and speed.

Xie Zhengye wants to take advantage of this point.

Go and break your own speed limit.

Breaking out the first high wall that blocks countless sprinters’ lives!

Xie Zhengye felt it.

Or.

I felt it again.

This is the wall that prevented countless athletes from becoming ten-leading players that year.

Within this wall, the number of athletes is even smaller than that of people entering space.

And outside this wall.

A competitive history of sprinting for hundreds of years.

99.9% of athletes were stopped outside.

I can only sigh.

Xie Zhengye knows.

If this wall cannot be opened.

No matter how much you change, no matter how much you prepare, you may be pushed away from 10 seconds.

This is a threshold you must face if you want to raise the situation.

Keep it.

Keep it.

Make good use of extra torque.

Master the angular momentum of the body.

Xie Zhengye thought of Su Shen's words in his mind—

Don't take Break Ten seriously.

Breaking ten is just the beginning.

Not the end.

This chapter is not finished yet, please click on the next page to continue reading the exciting content behind! Entering this threshold is the new world.

Although Xie Zhengye is a 200-meter special player.

But he has always been very interested in 100 meters.

It’s just that the 100-meter-meter-long domestic market cannot make a breakthrough.

Su Zhao and Zhang Lao alone have firmly controlled 4 positions.

And this year, all these four people have reached within 9 seconds and 90.

So don’t say thank you for yourselves.

It would be difficult for the rest of the people to get it right now.

This is the most introverted era in the history of the flower sprinter.

More inclined than any previous year.

Before, you might have just broken 10.

I can't enter the top four and can't get a place in the competition.

Now it has become you, even if you break ten.

You still can't get in.

Because of the new quota threshold.

It became within 9 seconds and within 90 seconds.

You have to have a 9.80 .

Only then can you fight.

9.80?

joke.

How many people have run away in history?

There are only a hundred people who have broken the ten capitals.

There are fewer people than the universe.

this?

Even less pitiful.

therefore.

Even if you like it.

He wouldn't be able to win the chance to participate in the competition in the 100m.

He can only make himself break through as much as possible.

Prepare for improvement in 200 meters.

Take a look by the way.

By then these people will grow old.

Do you have a chance?

Get a 100-meter quota.

But even so.

Xie Zhengye still thinks...

You can't turn on for 10 seconds.

It's hard for you to have a chance, too.

Ersha Island is eyeing people who are struggling to break ten.

Not just myself.

There is Liang Jiahong who is bigger than himself.
To be continued...