The first Wu Zhiqiang.

The second road is Xuzhou.

The third stroke is Zhao Haohuan.

The fourth Su Shen.

The fifth way is Zhang Peimeng.

The sixth way of work and rest.

The seventh Zhou soldiers.

The eighth thanks for your job.

The ninth chapter of Liang Jiahong.

...

The countdown to start the stadium electronic starting system.

Nine high-speed cameras capture the starter area at 1000 frames per second.

Sushen's steel starter front plate flashes with a 65cm scale laser.

"The front plate is moved back by 2mm, and the left pedal angle is lowered by 0.5°." Zhao Haohuan's also adjusted the starting device according to the instructions of Randy and Ralph Mann. For players with a height of 192cm, the traditional 45° pedal angle will cause insufficient folding of the hip joint. The improved 50° setting allows his torso angle to maintain a 43° gold inclination in the "preparation" posture.

detail.

Decide success or failure.

The Su Shen system has always done this.

This is how it is when Su Shen entered the team.

Xie Zhengye's starting machine has a particularly obvious feature of the rear movement - the rear pedal is 1.02 meters away from the starting line, and the standard is 0.9 meters. This special transformation allows his center of gravity projection point to move forward by 3cm at the moment of gunfire.

The starting device for work and rest still maintains the traditional 78cm front plate distance, but a 5mm rubber pad is installed on the surface of the pedal, which is his favorite starting feeling.

Personal customization.

It's something that will inevitably happen in modern sports.

The Su Shen system takes one step ahead.

These people are all sprinters and deserve such differentiated treatment.

When nine people completed the "Each In Place" command simultaneously, the infrared three-dimensional capture system instantly generated a bone projection.

This is one of the latest achievements of Sushen Laboratory.

The athlete's bone projection can be captured during high-speed exercise.

"What is this?" Yu Weili has now taken the position of Mapletzu Yong and became the head coach. Naturally, there are more and more things, although he has always insisted on practicing it.

But because of the increasing number of care, his energy cannot be only focused on the sprint team, which leads to his understanding of many new things not as thorough as he has been here before.

"This is a good thing," Yuan Guoqiang explained: "The infrared three-dimensional capture system instantly generates a bone projection."

"What...what, what?"

Yu Weili felt.

It seems that there is no problem with these words alone.

The combination of a long word made him feel that it was particularly difficult and unfamiliar to deal with these words.

This is a very normal situation. The brain needs to re-analyze and disassemble and combine unfamiliar words.

"The infrared three-dimensional capture system instantly generates a skeleton projection." Yuan Guoqiang said with a smile: "Xiaotian Laboratory's new thing."

"Having infrared marking point tracking means sticking infrared reflective marking points on key parts of the athlete's body, such as joints, to the joints. Multiple infrared cameras in the infrared three-dimensional capture system will continue to track the position changes of these marking points."

"Adopting the principle of triangulation, using multiple cameras to obtain image information of marking points from different angles, and using triangulation method to calculate the coordinate position of each marking point in three-dimensional space."

"Then it is done to transmit and process data. The marked point data collected by the camera is transmitted to the computer through a data transmission line or a wireless network. The computer uses specific algorithms to filter and reduce the original data, etc.."

"This is how to build a bone model. Based on the principles of human anatomy and kinematics knowledge, each marking point corresponds to the human skeleton structure, and an athlete's bone model is constructed through mathematical models."

"Using real-time rendering and projection, and with the help of graphics processing technology, the built 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 angle, angular velocity, angular acceleration, etc. of each joint of the bone based on the coordinate changes of the marking points and the time series."

"By bone projection and kinematic parameters, combined with mechanical principles, the dynamic information such as muscle strength and joint torque of athletes during sprinting can be further analyzed."

"During the period, coordinate system will be established and calibrated. Before the system starts, a unified three-dimensional coordinate system needs to be established and cameras and other equipment are calibrated to ensure that the collected data is accurate and consistent under the same coordinate system."

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

"Continuously optimize data processing algorithms and bone model construction algorithms to improve the accuracy, stability and real-time of the system and better adapt to the needs of complex sports scenarios such as sprinting."

"Oh, by the way, this is called algorithm optimization and update."

He finished speaking in one breath.

Yuan Guoqiang deliberately glanced with his little eyes.

It seems to be saying-

Looks like I said it's right.

I'm not here to praise me.

But after waiting for a while, Yu Feili didn't even speak.

Yuan Guoqiang was a little anxious, but instead turned his head.

It just met Yu Feili's expression.

Is Yu Weili surprised?

surprise.

Yuan Guoqiang actually looked like he was applying for the dish.

So many were reported in one go.

But that's exactly what...

It makes people feel suspicious.

It is true that Yuan Guoqiang is learning new knowledge, but such professional things are spoken out of his mouth.

That's still unlikely.

Yu Weili suddenly said something-

"I'll carry it for a long time."

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

After saying that, Yuan Guoqiang became embarrassed.

This wave of careful thoughts was instantly pierced by Yu Fei's power.

All of them have to have red faces.

But at least the head coach of the sprint has seen big scenes and can stay in the venue.

He forced himself to say, "I'm not that. It's not the case. You're busy with work, so familiarize yourself with these things in advance. When you ask, I will be able to tell everything in detail, know everything and say everything."

"Don't recite it so hard next time, maybe I will believe it." Yu Weili finished speaking, very curious about these new equipment.

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

This chapter is not over, please click on the next page to continue reading! Yu Weili suppressed his thoughts and asked in a low voice:

“What are the functions?”

That was the principle just now.

What is the function.

This is the key.

You use something that you can't know how it works.

But you must not ignore the instructions for using it.

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

Sometimes it is more inclined to the latter.

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

"Then...how can that be?"

Yuan Guoqiang is still very clear about this aspect.

He also chose the stupidest method.

Let's try to keep up with the progress of these geniuses.

That's...

rote.

Although it's stupid.

But it is indeed useful.

At least, I will forcefully remember a lot of things.

It's okay if you don't understand.

At least I won't know anything about it.

Being thrown farther and farther away.

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

It looks like you deserve to perform.

It made Yuan Guoqiang excited.

He immediately said:

"There are many effects, so I will choose the key points first."

"The first is to analyze the technical movements in a detailed manner: it can accurately present the movement status of all parts of the body in each stage of sprinting, help coaches and athletes to understand the subtle flaws and achieve targeted optimization."

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

"The second is an objective assessment of sports performance: through bone projection data, key indicators such as stride frequency, stride width, joint motion range can be quantified to provide an objective basis for evaluating athletes' athletic performance."

"The third is precise guidance on physical fitness training: based on the muscle force and energy transfer status reflected by bone projection, a physical fitness training plan that is more in line with individual needs can be formulated."

"The fourth is the early warning of sports injury risk: monitor joint angles, stress conditions, etc. in real time, detect abnormalities in a timely manner, take preventive measures in advance, and reduce the risk of damage."

"The fifth is to improve training efficiency: enable athletes to understand their own movement problems more intuitively, and speed up the speed of movement correction and skill mastery by comparing standard movements or their own front and back data."

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

...

After saying it for about ten minutes, Yu Weili was stunned.

This is also.

Too many.

He never expected it.

Yuan Guoqiang actually said so much.

It looks like.

He also put in the effort during this period.

No good results have been achieved.

Stop slacking off.

A vague meal.

but……

Compliment is praise.

There are too many points.

He couldn't catch it at all.

After thinking about it, don’t make things difficult for your old brain and said, “Old Yuan, I’m over 60 years old, you’re still making things difficult for me so much, let’s talk about the key points.”

"This is all the key point, there are forty or fifty functions."

Well.

"Then, let's talk about what it does for this game."

There are actually forty or fifty items.

His head swelled as he heard it.

but.

In his impression.

Yuan Guoqiang should have been the same as himself before.

Encountering something like this.

It will have the same headache as myself.

Dizziness.

This is the taste.

Now……

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

"Mechanical Code Analysis."

"Ha? It's gone?"

"It's gone."

"Why is this so short?"

"Because Xiaotian said the answer himself, he didn't say anything extra. He didn't say this. Don't talk about me. Randy and the others don't know."

Yuan Guoqiang is not a lie.

It's true.

Arrived at this level.

The higher and more sophisticated the thing.

The higher the required cognition and knowledge system.

At this stage, it is something that our predecessors have not done.

That's even more experienced than Randy.

I can only listen to Su Shen’s words about how it will develop and do what will happen later.

Because he really has no relevant experience in his mind.

Forced arrangements will only make you laugh.

Randy is not such a person.

He is still very curious about this aspect.

Here you can learn something that you may not have learned in the past few decades.

He also felt that after graduating from school, he never had such a happy learning experience.

Now he found the feeling that way back then.

There are unknowns everywhere.

I don't understand everywhere.

That also means attracting interest everywhere.

I don’t understand even when I see Yuan Guoqiang.

Yu Weili could only look at it, relying on his own eyes to find some information on the screen to analyze and digest it.

The 9 people's infrared three-dimensional capture system instantly generates bone projections on the screen.

Take a closer look.

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

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

Zhao Haohuan—Using asymmetric elbow joint angle, 110° left/105° right.

The torso rotational inertia compensation of 0.7kg·m² can offset the rotational inertia disadvantage caused by height.

The activation degree of the trapezoid on the right is 12% higher than the left, forming a unique torque balance system.

Zhou Bing - The 125° elbow joint exposes the characteristics of the power player, and the activation degree of the lateral femoral muscle reaches a limit of 98%.

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

In the past, some data that needed to be obtained by having a meeting to discuss a large amount of analysis and calculation are now placed on the screen so brightly.

even.

I also have a more thoughtful comparison skill.

You can still see the athlete's comparison picture.

horrible.

Intuitive to terrible.

Why did Su Shen tell him that this is called deciphering one of the codes for sprinting mechanics?

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

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

The infrared three-dimensional capture system uses multiple infrared cameras to track reflective marking points pasted on key parts of the athlete's body from different perspectives, and uses the principle of triangulation to accurately calculate the three-dimensional coordinates of the marking points.

This chapter is not finished yet, please click on the next page to continue reading the exciting content later! Through these coordinate data, the system can reconstruct the athlete's bone position at every moment during the sprint with extremely high accuracy, generate continuous and detailed bone projections, and fully present the movement trajectory of key positions such as the body's center of gravity and joint nodes.

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

Then do multi-dimensional motion parameters to obtain.

For example, joint angle and angular velocity.

Based on the constructed skeletal model, the system can calculate the angular 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 for measuring leg movement efficiency.

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

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 in each part of the body. During the sprint acceleration stage, the acceleration of the center of gravity of the body and the changes in the linear velocity of the legs, arms and other parts directly reflect the athlete's explosive power and speed improvement ability.

Then, it is combined with the precise calculation of joint forces and torque of the system.

Joint forces and torque are important dynamic factors that affect sprint performance. The bone projection data generated by the infrared three-dimensional capture system, combined with human anatomy and mechanics principles, provide the possibility for the precise calculation of joint forces and torque.

Using the inverse dynamics method, the forces and torque generated by each joint during movement can be calculated through known kinematic parameters such as joint angle, angular velocity, angular acceleration and athlete's body mass distribution models.

It was impossible to calculate so clearly before.

There is this now.

It's possible.

Add accurate assessment of muscle strength and power.

Just like by analyzing the force arms and torque data of the calf triceps at the ankle joint and joint movement, the power output of the calf triceps during the pedal process can be calculated, thereby evaluating the effectiveness of the muscle group in sprinting, providing a basis for formulating a targeted muscle training plan.

Muscles are the source of motivation for producing movement, and accurate assessment of muscle strength and power is crucial to understanding sprint mechanics. Although the infrared three-dimensional capture system cannot directly measure muscle strength, the joint movement and stress situation reflected by bone projection, combined with the musculoskeletal model, can indirectly estimate the force magnitude and power output of different muscle groups during sprinting.

This will enable more accurate technical action diagnosis.

There is no perfection.

Only more perfect.

You feel perfect now because of your vision and cognition, that's it.

In sprinting, each stage such as starting, accelerating, running on the way and sprinting have specific technical and action requirements.

The bone projection generated by the infrared three-dimensional capture system can intuitively display the athlete's movement details at each stage, helping coaches and scientific researchers to conduct accurate technical movement diagnosis.

By comparing the standard action models of outstanding athletes and the skeletal projection data of athletes to be analyzed, we can quickly find technical problems such as incorrect starting posture, such as the body's center of gravity is too high or too low during running, the legs pushing angle is unreasonable, the arm swing and leg swinging are incoordinated when running on the way, such as insufficient amplitude or inconsistent frequency of the arm swinging, which provides a clear direction for subsequent technical improvements.

Until now.

You want to break through.

What is needed is solid basic theories and promote detailed data testing support.

Such situations like the situation where breakthroughs were completed with inspiration in the 1980s and 1990s are becoming increasingly unlikely to happen again.

If you want to go further on this basis, you not only need theoretical upgrades, but also need a future knowledge system as support, and avoid various wrong divisions, but also need more powerful black technology as an auxiliary.

This is why modern athletes do not have super talented people of the Five Tiger level again.

The reason why you can also achieve good results.

To be able to go further, it is necessary to develop in all aspects and provide all-round assistance, and perhaps it can break through 0.01.

With these.

Su Shen can say it.

I really have the conditions to continue to attack the next step.

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

Not the best effect.

Now.

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

You just need to take the stage to perform.

oh.

By the way.

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

That's because the oxygen content in the plateau is low. When athletes conduct sprinting training in this environment, their bodies will adapt to the hypoxic environment by increasing red blood cell production and improving cardiopulmonary function to ensure aerobic metabolism and energy supply.

Using infrared three-dimensional capture system to analyze the sprint mechanics at this time can provide a deeper understanding of the athlete's aerobic capacity improvement mechanism and provide reference for formulating a plain training plan.

Comparing the mechanics data of sprinting before and after plateau training can clearly see the impact of improving aerobic capacity on the mechanics performance of each stage of sprinting.

Such as maintaining explosive power in the starting acceleration stage and the stability of the rhythm of running on the way, etc., it provides a quantitative basis for evaluating the impact of plateau training on aerobic ability and sprinting performance.

This can better study the special effects of muscle strength and nerve regulation.

How about it.

Now it is difficult to know why Su Shen said that high-level athletes can improve by 0.01 seconds.

Because what you want later is a lot of resources to support, and you can't do it easily by yourself.

To continue to make breakthroughs, without systems and plug-ins, you need various realistic mechanisms to assist yourself.

Su Shen has been waiting for this device to be debugged for a long time.

Finally, when I was having a peak showdown with Bolt this year.

Debugging successfully.

This also gave him continued breakthroughs, providing motivation and possibility.

So.

Usain.

I said to catch up with your world record.

You'll know soon.

I'm not kidding.

My past 10 years.

From the knowledge system to the own efforts in science and technology and the overall environment creation...

But I didn't dare to stop for a moment.

Now.

It should be for you to see ten years of hard work.

When this piece is not sharp.

Let yourself see it.

I have been able to sharpen my sword in the past ten years.

Is it sufficient to hit the top number?

It was at this time.

The password to the game sounded.

“Each is in place.”

"preparation."

Bang------------
Chapter completed!