In the process of body "compensation".

A lot of energy wasted.

But the bent arm starts too fast, and you can't help but let him go so fast, it looks like an unsolvable situation.

Even Randy thought at that moment that - it is probably necessary for someone with a very long physical talent and a very perverted person to solve this problem.

But that solution belongs only to individuals.

It is a physiological talent that is forced to solve.

Unable to promote.

But now...

Su Shen’s starting method combining frontal mechanics.

Because the force is already concentrated in the curve tangent and centripetal directions at the start.

so……

The body can enter the curve acceleration state more smoothly.

This way.

The conversion process of energy from chemical to mechanical energy is more directly used to generate forward and inner side of the curve.

Being natural and comfortable will reduce unnecessary energy loss.

Moreover, this method can better maintain the stable posture of the body on the curve during the acceleration after starting.

It can even further improve the efficiency of energy utilization.

This allows the user to enter the acceleration posture faster.

This is damn.

It's so...good!!!

How is that possible?

Hu Kai also felt that his mind seemed to be in his brain, but it had not yet grown...

Because he started a bent arm, he was also arranging Zhang Peimeng for training. He knew the difference between straight and curves. For example, when you started a bend, the changes in the athlete's joint angle were mainly around the kicking of the legs and the basic swing of the arms.

This point of the bent arm starts too fast.

You can't adjust properly at all.

When starting a curve, you need to bend. During the pushing of the leg joint angle, it is mainly to achieve forward advancement.

Changes in knee and hip angles are more likely to be within the sagittal plane.

That……

How could it be like this?

Zhou Bing and Xie Zhengye are now leading the team leader Yang Yaozhu. He is participating in the whole process of the bent arms of these two people. Especially both of them are mainly 200 meters.

The natural bent arm starts, and more consideration is to start the main item.

He understood even more that it is better to start with a bent arm, but when the arms swing, the angle changes between the shoulder and elbow joints are relatively conventional, mainly to maintain body balance.

But……

This joint angle change may not fully utilize the special mechanical environment of the curve when starting a curve.

This results in the motion trajectory not being optimized enough at the beginning of the curve.

This is an unsolvable problem.

He also asked Randy.

Randy didn't know about the answer.

This is not perfunctory.

I don't know this.

It's useless for you to read books.

Because there is no such example in the world.

There were not many people who started with a bent arm.

How could you find any information about starting a bend arm?

But Su Shen here...

But they all think that it is almost impossible to solve the problem.

Push with ease.

Combined with frontal mechanics start.

There are unique changes in joint angles.

When the front arm swings, the shoulder joint angle will give more obvious forward and downward movements.

The range of variations in the angle of the elbow joint will also be adjusted according to curve requirements.

In this way, when the hip and knee joints on the front leg push the ground, an angle that is more conducive to exerting force to the inner side of the curve will be formed.

These changes in joint angles allow the movement trajectory of each part of the body to be more in line with the curves.

Look.

Just a few moments.

Yang Yaozhu has no clue.

That's done.

It's that simple and cruel.

It's easy to solve.

In this way, this starting method allows users to move along a better curved path at the moment of starting.

From the beginning, the velocity loss caused by deviation from the optimal curve trajectory is reduced.

This enables faster starts and corner acceleration.

This is the second step when the curved arm starts to enter the bend and needs to overcome the centrifugal force of the curve.

Zhou Bing and his other people start with a bent arm. When starting on curves, the nervous system controls muscles mainly based on the traditional starting action mode.

The issuance of neural signals is relatively simple, mainly to direct the legs and arms to move in a predetermined order and manner.

When facing the complex mechanical environment of curve start, this neuromuscular control mode may not be able to accurately adjust the muscle contraction intensity and time, resulting in the output and direction of force that cannot be well adapted to curves.

Simply put, it is...

There are no specific problems, specific analysis.

The 200-meter start and the 100-meter start seem to be both sprint starts. But in fact, there is a corner blocking the front, which leads to a deep level of detail, which is very different.

You bend your arms and start in the normal 100-meter mode.

Of course the effect will be worse than that of Su Shen’s modification and improvement.

Su Shen combined the front side mechanics to start with the bent arm.

For the nervous system, higher control accuracy is required.

Because it requires precise coordination of the movement of the front arm and leg muscles.

Nerve signals not only accurately control the time of muscle contraction and synchronize the movements of the arms and legs, but also accurately control the intensity of muscle contraction to generate a suitable direction of force.

Only this highly accurate neuromuscular control can allow users to better utilize their muscle strength to adapt to curve starts.

This is the third step.

There is also a more advanced and more critical point.

This is something Randy didn't expect.

That's...

for frictional utilization.

Ordinary bent arms start because they are too fast and cannot be controlled properly, so the friction between the athlete and the track is not fully utilized.

Since the starting action does not consider the centripetal force requirements of the curve in a targeted manner, the friction between the sole and the track is not efficient in generating component forces to the inside of the curve.

Fortunately, Zhou Bing was not that strong in the start. Look at Xie Zhengye. After starting, he saw a slight sliding because the friction direction did not exactly match the actual movement direction.

This undoubtedly reduced his efficiency in starting a bent arm.

In fact, the coordinated movement of the front arm and legs should be allowed to generate a joint force pointing toward the inside of the curve obliquely.

In this way, the friction between the sole and the runway can be better utilized.

This combined force can enable the user to apply pressure on the track at the moment of starting, which is more conducive to generating frictional force to the inside of the curve.
To be continued...