The Su God of the Reopening of the Sports Arena

Chapter 2120 The new black technology has been debugged! This year, I dare not rest for a moment

Chapter 2120 The new black technology has been debugged! I have not dared to rest for a moment in the past ten years

The first one is Wu Zhiqiang.

The second one is Xuzhouzheng.

The third one is Zhao Haohuan.

The fourth path is Su Shen.

The fifth one is Zhang Peimeng.

The sixth way is work and rest.

The seventh Zhou army.

The eighth is to thank Zhengye.

The ninth one is Liang Jiahong.

……

The stadium's electronic starting system starts the countdown.

Nine high-speed cameras captured the starting blocks area at 1000 frames per second.

The front plate of Su Shen's steel starting blocks flashes with a 65cm scale laser.

“前板后移2mm，左踏板角度下调0.5°。“赵昊焕的也按照兰迪和拉尔夫.曼的交代调整了起跑器。对于身高192cm的选手而言，传统45°踏板角度会导致髋关节折叠不足，改进后的50°设置使其躯干角在“预备“姿势时能维持43°黄金倾角。

detail.

Determines success or failure.

The Sushen system has always done this.

It has been like this since Su Shen joined the team.

Xie Zhengye's starting blocks were particularly noticeable in their backward movement - the back pedal was 1.02 meters away from the starting line, while the standard was 0.9 meters. This special modification allowed his center of gravity to move forward 3 cm more at the moment of the gunshot.

Lao Yi's starting block still maintains the traditional 78cm front board distance, but a 5mm rubber pad is added to the pedal surface, which is the starting feeling he likes.

Personal customization.

This is what is bound to happen in modern sports.

Su Shenxi goes first.

These people are all sprint experts and deserve such differentiated treatment.

When the nine people synchronously complete the "get in position" instruction, the infrared three-dimensional capture system instantly generates a bone projection.

This is one of the latest achievements of Su Shen’s laboratory.

The athlete's skeletal projection can be captured during high-speed motion.

"What is this?" Yu Weili has now taken over Feng Shuyong's original position and become the head coach. Naturally, there are more and more things to do, although he has always insisted on doing things himself.

However, as there were more and more aspects to take care of, he could not focus only on the sprint team, resulting in him not understanding many new things as thoroughly as before when he had been following here.

"This is a good thing." Yuan Guoqiang explained: "The infrared 3D capture system instantly generates a bone projection."

"What... what?"

Yu Weili feels.

These words seem to be fine when heard alone.

Putting them together to form a long word, he felt that processing these words was particularly difficult and unfamiliar.

This is normal. The brain needs to re-analyze and reassemble unfamiliar words.

"The infrared 3D capture system instantly generates a bone projection." Yuan Guoqiang said with a smile, "This is a new gadget from Xiaotian's lab."

"With infrared marker tracking, infrared reflective markers are attached to key parts of the athlete's body, such as joints. Multiple infrared cameras in the infrared 3D capture system will continuously track the position changes of these markers."

"The principle of triangulation is adopted, and multiple cameras are used to obtain image information of the marking points from different angles, and the coordinate position of each marking point in three-dimensional space is calculated through triangulation."

"Then we do data transmission and processing. The marker data collected by the camera is transmitted to the computer through a data transmission line or wireless network. The computer uses a specific algorithm to perform pre-processing such as filtering and noise reduction on the raw data."

"The skeleton model is constructed in this way. Based on the principles of human anatomy and kinematics, each marker point corresponds to the human skeleton structure, and the skeleton model of the athlete is constructed through a mathematical model."

"Using real-time rendering and projection, with the help of graphics processing technology, the constructed bone model is rendered into a visual three-dimensional image in real time and projected onto the display device."

“The system calculates kinematic parameters such as the angle, angular velocity, and angular acceleration of each skeletal joint based on the coordinate changes and time series of the marker points.”

"By combining bone projection and kinematic parameters with the principles of mechanics, we can further analyze the athlete's kinetic information such as muscle strength and joint torque during sprinting."

"During this period, the coordinate system will be established and calibrated. Before the system is started, a unified three-dimensional coordinate system needs to be established, and the camera and other equipment need to be calibrated to ensure that the collected data is accurate and consistent in the same coordinate system."

"It has a time synchronization mechanism. In order to ensure the synchronization of data collected by multiple cameras, the system uses high-precision time synchronization technology so that the images collected by different cameras at the same time can accurately correspond."

“We continue to optimize data processing algorithms and bone model building algorithms to improve the accuracy, stability and real-time performance of the system, and better meet the needs of complex sports scenarios such as sprinting.”

“Oh, by the way, this is called algorithm optimization and updating.”

Finished in one breath.

Yuan Guoqiang glanced at him deliberately with his little eyes.

It seems to be saying——

See what I said was good.

Why don't you come and praise me?

But after waiting for a long time, Yu Weili didn't say anything.

Yuan Guoqiang was a little anxious and turned his head away.

It just happened to match Yu Weili's expression.

Was Yu Weili surprised?

surprise.

Yuan Guoqiang was actually reading out the menu.

So much reported in one breath.

But that’s exactly what it is…

That makes people suspicious.

It is true that Yuan Guoqiang is learning new knowledge, but it is hard to hear such professional things coming out of his mouth.

That's still unlikely.

Yu Weili suddenly said:

"It took a long time."

"It's okay, it's okay, just..."

After saying this, Yuan Guoqiang felt embarrassed.

This little trick was instantly exposed by Yu Weili.

Their faces will turn red.

But after all, he is the head coach of the sprint team and has seen big situations and can keep his composure.

He said forcefully, "That's not me. Seeing that you are busy with work, you should familiarize yourself with these things in advance. Then when you ask me, I will be able to tell you everything I know."

"Don't recite it so stiffly next time, maybe I will believe it." Yu Weili said, and he was very curious about these new devices.

See nine sets of three-dimensional images displayed on the screen.

Yu Wei suppressed his thoughts and asked in a low voice:

“What are the effects?”

That was the principle just now.

What is the effect?

This is the key.

You use something without knowing how it works.

But you absolutely cannot be ignorant of its instructions for use.

For inventors, the principle may be the most important, but for users...

Sometimes it's more like the latter.

"Hmm?" Seeing that Yuan Guoqiang didn't say anything for a long time, Yu Weili asked, "Old Yuan, you didn't forget the key points, did you?"

"That...that's impossible."

Yuan Guoqiang is very clear about this.

He also chose the dumbest way.

To try to keep up with the progress of these geniuses.

That is……

rote.

Although it's stupid.

But it does work.

At least, I will force myself to remember a lot of things.

It’s okay whether you understand or not.

At least you won't be clueless when asked.

Being left further and further behind.

"Then hurry up." Yu Weili pointed at the machine.

It looks like it's your turn to perform.

This also made Yuan Guoqiang excited.

He immediately said quickly:

"There are many effects, so I will talk about the key ones first."

"The first is the refined analysis of technical movements: it can accurately present the movement status of various parts of the body at each stage of sprinting, helping coaches and athletes to understand subtle flaws and achieve targeted optimization."

"Well, this is good." Yu Weili nodded.

“The second is the objective evaluation of sports performance: through bone projection data, key indicators such as cadence, stride length, and range of motion of joints can be quantified, providing an objective basis for evaluating athletes’ sports performance.”

"The third is precise guidance for physical training: based on the muscle force and energy transfer conditions reflected by the bone projection, a physical training plan that better suits individual needs can be developed."

"The fourth is sports injury risk warning: real-time monitoring of joint angles, force conditions, etc., to detect abnormalities in time, take preventive measures in advance, and reduce the risk of injury."

“The fifth is to improve training efficiency: enabling athletes to more intuitively understand their own movement problems and speed up movement correction and skill mastery by comparing standard movements or their own before and after data.”

"The sixth is to promote innovation in sprint technology: providing researchers with rich real data will help explore new sprint technology theories and training methods, and promote the development of sprint events."

……

After he said about ten points, Yu Weili was dumbfounded.

This too.

Too much.

He himself never expected it.

Yuan Guoqiang actually said so much.

It seems.

He also put in a lot of effort during this period of time.

Not because of getting good grades.

Just stop slacking off.

A vegetarian meal.

but……

A compliment is a compliment.

He has too many points.

He couldn't catch it at all.

After thinking about it, he decided not to embarrass his aging brain and said, "Old Yuan, I'm over 60 years old, why are you still embarrassing me? Let's get to the point."

"These are all the key points. There are forty or fifty functions."

Uh.

"Well, then tell me what role it plays in this game."

There are actually forty or fifty of them.

His head started to swell just listening to it.

but.

in his impression.

Yuan Guoqiang must have encountered the same thing as himself before.

You will have the same headache as me.

Dizziness.

This is just right.

just now……

"Oh, the main purpose of this game is——"

"Mechanical Code Analysis."

"Huh? Gone?"

"Gone."

“Why is this so short?”

"Because Xiao Tian gave the answer himself. He didn't say anything extra. If he doesn't say anything about this, don't blame me. Randy and the others don't know either."

Yuan Guoqiang is not lying.

it is true.

To this level.

The more advanced the things are.

The higher the cognition and knowledge system required.

At this stage, these are things that have never been done before.

Even someone as experienced as Randy.

As for how things will develop in the future and what to do, we can only listen to Su Shen.

Because he really has no relevant experience in his mind.

Forced arrangements will only make people laugh.

Randy is not that kind of person.

He still has a strong desire to learn about this aspect.

You can learn things here that you may not have learned in the past few decades.

He also felt that he had never been so happy to acquire knowledge since he graduated from school.

Now he has found the feeling he had back then.

There is unknown everywhere.

There is confusion everywhere.

That also means there's interest everywhere.

I didn’t understand Yuan Guoqiang either.

Yu Weili could only watch and rely on his own eyes to find some information on the screen to analyze and digest.

The skeletal projections of nine people generated instantly by the infrared three-dimensional capture system are displayed on the screen.

Take a closer look.

Su Shen-the forearm forms an acute angle of 58° with the ground.

This extreme compression posture causes the shoulder joint torque to reach 285N·m, which is equivalent to placing a 30kg weight plate on the shoulder.

Zhao Haohuan——Adopts asymmetrical elbow joint angles, left 110°/right 105°.

The trunk rotational inertia compensation of 0.7 kg m can offset the rotational inertia disadvantage caused by height.

The right trapezius muscle activation level is 12% higher than the left side, forming a unique torque balance system.

Zhou Bing - The 125° compromise angle of the elbow joint reveals the characteristics of a power athlete, and the activation level of the vastus lateralis muscle reaches 98% of the limit.

However, the range of motion of the tibialis anterior muscle is 15% lower than that of Su Shen, which is the price of insufficient ankle joint rigidity.

In the past, some data required meetings and a lot of analysis and calculation to obtain, but now they are clearly displayed on the screen.

even.

It also has an additional comparison function.

You can also click to see comparison pictures of athletes.

terrible.

Scary intuitive.

Why did Su Shen tell him that this was one of the codes to decipher the mechanics of sprinting?

It is because of this system that the motion trajectory can be accurately reconstructed.

In sprinting, the athlete's motion trajectory is a complex three-dimensional spatial curve, involving the coordinated movement of various parts of the body.

The infrared 3D capture system uses multiple infrared cameras to track reflective markers attached to key parts of the athlete's body from different perspectives, and uses the principle of triangulation to accurately calculate the 3D coordinates of the markers.

Through these coordinate data, the system can reconstruct the athlete's skeletal position at every moment during the sprint with extremely high accuracy, generate continuous and detailed skeletal projections, and fully present the movement trajectory of key positions such as the body's center of gravity and joints.

This millimeter-accurate motion trajectory record provides basic data for subsequent in-depth analysis of the kinematic characteristics of sprinting.

Then obtain multi-dimensional motion parameters.

For example, joint angles and angular velocities.

Based on the constructed skeletal model, the system can calculate the angle changes of each joint in three-dimensional space in real time.

For example, during sprinting, the flexion and extension angles of the hip, knee, and ankle joints and their changes over time are key indicators of leg movement efficiency.

Through the infrared three-dimensional capture system, these parameters can be accurately obtained and the movement patterns of joints at different stages can be analyzed, such as the rapid extension angle and angular velocity of the knee joint during the starting phase, providing a quantitative basis for evaluating starting techniques.

For example, linear velocity and acceleration.

In addition to joint motion parameters, the system can also calculate the linear velocity and acceleration of the center of mass of each part of the body. During the acceleration phase of sprinting, the acceleration of the center of mass of the body and the linear velocity changes of the legs, arms and other parts directly reflect the athlete's explosive power and speed improvement ability.

This is combined with the precise calculation of the joint forces and torques of the system.

Joint force and torque are important dynamic factors that affect sprint performance. The bone projection data generated by the infrared 3D capture system, combined with human anatomy and mechanical principles, makes it possible to accurately calculate joint force and torque.

Using the inverse dynamics method, the forces and torques exerted on each joint during movement can be calculated using known kinematic parameters such as joint angles, angular velocities, angular accelerations, and the athlete's body mass distribution model.

It was impossible to calculate so clearly before.

Now there is this.

It became possible.

Accurate assessment of applied muscle strength and power.

Just like by analyzing the moment arm of the triceps surae at the ankle joint and the torque data during joint movement, the power output of the triceps surae during the extension process can be calculated, thereby evaluating the efficiency of this muscle group in sprinting and providing a basis for formulating targeted muscle training plans.

Muscles are the power source for movement, and accurately assessing muscle strength and power is crucial to understanding sprint mechanics. Although the infrared 3D capture system cannot directly measure muscle strength, it can indirectly estimate the force and power output of different muscle groups during sprinting by combining the joint movement and force conditions reflected by the bone projection with the musculoskeletal model.

This will enable more accurate technical action diagnosis.

There is no perfect.

Only more perfect.

You think it is perfect now because your vision and cognition end here.

In sprinting, each stage, including starting, accelerating, mid-running and sprinting, has its specific technical movement requirements.

The bone projection generated by the infrared 3D capture system can intuitively display the details of the athlete's movements at each stage, helping coaches and scientific researchers to make accurate technical movement diagnosis.

By comparing the standard movement models of excellent athletes with the skeletal projection data of the athletes to be analyzed, we can quickly discover technical problems such as incorrect starting posture, too high or too low center of gravity when running, unreasonable leg push-off angle, uncoordinated arm and leg swinging when running, insufficient arm swing amplitude or inconsistent frequency, etc., providing a clear direction for subsequent technical improvements.

Now.

You want to break through.

What is needed is a solid basic theory and detailed data testing support.

The situation in the 1980s and 1990s where a breakthrough could be achieved with just one inspiration is becoming increasingly unlikely.

If you want to go further on this basis, you not only need theoretical upgrades, but also the support of future knowledge systems. In addition, to avoid various erroneous divisions, you also need more powerful black technology as an aid.

This is also why there are no more super-talented athletes like the Big Five in modern times.

The same reason why you can achieve good results.

To be able to go further requires all-round development and all-round assistance, and perhaps only then can we break through that 0.01.

With these.

Only Su Shen can say that.

I really have what it takes to move on to the next step.

If the productivity and technological levels cannot keep up, then even a lot of theories will be difficult to put into practice.

It does not achieve the best results.

just now.

Only then can you say that the stage has been set for yourself.

All you need is one performer to go on stage and perform.

Oh.

correct.

As for why the plateau area was chosen as the test area.

That is because the oxygen content in plateau areas is low. When athletes perform sprint training in this environment, their bodies will adapt to the hypoxic environment by increasing red blood cell production, improving cardiopulmonary function, etc., to ensure aerobic metabolic energy supply.

Using the infrared three-dimensional capture system to analyze the sprinting mechanics at this time can provide a deeper understanding of the mechanism for improving athletes' aerobic capacity and provide a reference for formulating plain training plans.

By comparing the sprinting mechanical data before and after plateau training, we can clearly see the impact of improved aerobic capacity on the mechanical performance of each stage of sprinting.

Such as the maintenance of explosive power in the acceleration phase of the start, the stability of the rhythm during the run, etc., which provide a quantitative basis for evaluating the impact of plateau training on aerobic capacity and sprint performance.

This will allow for better research into the specific effects of muscle strength and neural regulation.

How about it.

Now I understand why Su Shen said that it is difficult for high-level athletes to improve by 0.01 seconds.

Because later on you will need the support of a lot of resources, which is not something you can easily accomplish by yourself.

To continue to break through, without systems and plug-ins, you will need various real mechanisms to assist yourself.

Su Shen has been waiting for a long time to debug this equipment.

Finally, this year, I had the peak showdown with Bolt.

Debugging successful.

This also gave him the motivation and possibility to continue to break through.

Then.

Usain.

I said catch up with your world record.