The Su God of the Reopening of the Sports Arena

Chapter 2297 The longest river a human sprint might flow through.

Chen Juan didn't expect this either.

I just graduated and my grades are already so good.

From the end of startup to the acceleration zone.

Logically speaking, this area should be a disadvantage for someone of her height, but it turned out that she rushed out of it.

Good guy.

We've already reached second place.

Regardless of Jeter.

It's still Ahorei.

Or perhaps Gardner or Stewart.

None of them followed him.

As for Okabarre, she was already the tallest, so her initial start was not considered due to her being behind.

Therefore, Chen Juan felt that she was second in line in this regard...

My heart suddenly felt...

I remembered what Su Shen had said.

Her opponent in this match.

Only Frazier.

She would definitely listen to Su Shen, but she couldn't figure out why.

Until this very moment.

The acceleration zone is about to end.

He actually managed to secure second place.

That's it.

Combine this with what Su Shen said in his pre-match interview.

This immediately made Chen Juan feel...

My confidence suddenly surged.

Frazier wasn't idle either; it was clear she hadn't expected that the person following her wasn't Jettel or anyone else.

It was Chen Juan.

The fact that a competitor of that height was right behind her was something she couldn't comprehend based on her previous understanding of track and field.

However, Frazier is not Okabarre.

If you can't understand it, then you can't understand it.

It won't affect her performance.

During her acceleration phase, her quadriceps were the primary muscle, with an activation intensity of 85% of the MVC (Multiple Vibration Capacity), while the gluteus maximus assisted in activating 65% of the MVC, forming a "knee extension priority" power generation pattern.

During the mid-run phase, the gluteus maximus becomes dominant, while the quadriceps activation intensity drops to 75% of the MVC.

The gluteus maximus is increased to 80% MVC.

At the same time, the hamstring activation intensity increased from 50% MVC to 65% MVC.

This forms a synergistic pattern of "hip extension - knee stability".

If we had electromyography (EMG) signals now, we could definitely see it much more clearly.

Fraser's switching altered the "lever arm combination" of lower limb force generation.

The lever arm of hip extension is 0.55 meters longer than that of knee extension, which is 0.35 meters longer.

When the gluteus maximus is the primary force exerted, it can generate a greater push-off torque, from 180 N·m to 210 N·m.

Compensate for the power loss after the step frequency stabilizes.

At the same time, the hamstrings are enhanced and activated through a rapid transition from eccentric to concentric contraction.

The contraction speed reaches 7.5 sarcomeres/second.

Provides braking-extension cushioning for the knee joint.

This reduces the vertical impact load during the support phase by 20%.

It decreased from 3.8 times body weight to 3.0 times body weight.

It is adapted to the high-speed requirements of running on the road.

This is the strength of a world-class historical player.

Don't be fooled by Frazier's lack of effort in the early part of the season.

Enter the competition.

Those are all incredibly strong.

She's practically the female version of Usain Bolt.

Good performances will be showcased in major competitions.

but.

Frazier played strongly, but this did not affect Chen Juan.

the reason is simple.

Chen Juan was in second place right after leaving the acceleration zone, which was beyond her expectations.

I'm already very satisfied.

So what she wanted to do was to pursue and challenge Frazier as much as possible.

At the same time, they maintained their second-place position.

After the change in mindset.

The pressure can decrease at any time.

Chen Juan runs so well even in her non-advantageous area.

As she entered the running phase, her speed gradually increased.

Then let's not even talk about it.

Bang bang bang bang bang.

Chen Juan gradually raised her head, switching from the acceleration zone to the mid-race section.

At this stage, the human body needs to enter a higher speed range.

The human body needs to switch from "acceleration" to "speed maintenance" mode.

At this point, the Fibonacci ratio of the motion parameters can cause the neuromuscular-energy system to resonate, which is manifested in three ways—

Spatial dimension: The adjacent ratios of parameters such as step length and swing arm amplitude are close to φ, ensuring a smooth increase in power output.

Time dimension: The ratio of step frequency to muscle contraction cycle matches φ, achieving precise control of movement rhythm.

Energy dimension: Energy allocation in each stage follows the Fibonacci sequence to maximize energy conversion efficiency.

However, comparing these three dimensions of startup acceleration.

There have been many minor adjustments.

Enter the mid-race phase.

30-40 meters: average step length 1.25 meters.

F=5, corresponding to a ratio of 5/4=1.25.

The next ten meters is pre-set as follows:

40-50 meters: average step length 1.60 meters.

F=8, 8/5=1.6.

The stride length increases after 50 meters, initially reaching 50-60 meters: average stride length 1.95 meters.

F=13, 13/8≈1.625.

等于是在极速之前，相邻区间步长比值为1.60/1.25=1.28、1.95/1.60≈1.219。

The overall approximation is approximately the square root of φ, which is approximately 1.272.

This forms a "double golden ratio with increasing step size".

The biomechanical significance of this proportional design lies in:
When the step size increases by φ, the kinetic energy increment of each step is ΔE = 1/2mΔv.

It presents a uniform distribution, avoiding energy waste caused by sudden changes in step size.

During training, according to data from the Su Shen Laboratory, Chen Juan's kinetic energy conversion rate during the transition phase reached 85%.

The Fibonacci increment of the step size contributed 12% to the efficiency improvement!
Then there's the step frequency.

From a mathematical perspective, the ratio of the step frequency increase to the step size increase is 0.137, which is close to 1/φ.

0.382≈0.146.

This "fine-tuned cadence - stride length-driven" approach is well-suited to the characteristic of women having relatively weaker muscle strength.

The goal is to compensate for the limitations of increasing stride frequency by efficiently extending stride length, while maintaining rhythm stability.

40 m.

Smooth transition control of Fraser's center of gravity trajectory.

The standard deviation of the center of gravity trajectory during the switching phase decreases from ±3.5 cm during the acceleration phase to ±2.0 cm, achieving a "low-fluctuation transition." The core mechanism of this transition lies in—

Fine-tuning of torso angle:

During the acceleration phase, the torso leans forward at a 35° angle.

The switching phase gradually decreases to 28°.

The angle decreases by 3.5° for every 10 meters.

Make sure your center of gravity is projected smoothly from 25 centimeters in front of your feet to 20 centimeters behind.

Avoid imbalance caused by sudden changes in angle.

This woman is skilled.

There's really nothing to say about it.

No wonder it will be another ten years or so.

They can still break eleven seconds as usual, no problem at all.

Then control the time difference between steps.

The time difference between the left and right steps decreased from ±0.015 seconds during the acceleration phase to ±0.008 seconds.

The step size difference decreased from ±0.08 meters to ±0.04 meters.

Ensure that the center of gravity is offset from the coronal plane by ≤1.5 cm.

This is combined with arm torque compensation.

During the switching phase, the swing arm amplitude increases from 45° to 55°.

The oscillation angular velocity is maintained at 320°/second.

The resulting stabilizing torque reaches 15 N·m.

It counteracts the trunk rotation that may be caused by uneven force exertion in the lower limbs.

Su Shen saw it at a glance.

This is the theorem of motion of the center of mass.

This smooth transition allows the horizontal acceleration of the center of gravity to decrease smoothly from 1.2 m/s² during the acceleration phase to 0.3 m/s².

Therefore, it is necessary to avoid kinetic energy loss caused by sudden changes in acceleration.

Really strong.

Jamaica is such a backward country, yet it has managed to achieve this level of scientific research. This cannot be explained by talent alone.

It's not just Jamaica's own coaching experience.

This is quite outstanding.

Another factor is Fred's own technical comprehension and control over technology.

Naturally superior.

It's even possible that he could be superhuman or something similar.

You can see that her speed continues to increase from here.

The speed is getting faster and faster.

The ground beneath my feet was already at maximum speed.

A bomb was planted in advance.

We're just waiting for the speed limit to be reached.

Release all the energy.

Chen Juan knew, of course, that Frazier was incredibly capable.

If she wants to keep up as much as possible, she'll need to show some real skills.

Otherwise, even if they produce an exceptional performance like last year.

They will all be left far behind by Frazier.

There is no doubt about it.

The difference between bronze and silver medals is quite obvious.

The gap between silver and gold medals is even wider.

Now is the time for Chen Juan to see all of this for herself.

In order to reach new heights in my own speed.

Chen Juan could only continue to develop this system.

Since the initial stage has the hierarchical characteristics of the Fibonacci sequence.

That's the path to extreme speed.

of course.

There are also.

During the running phase, muscle activation follows a Fibonacci hierarchy of "core → proximal → distal".

The activation time interval conforms to the following sequence characteristics: First level (core muscle group): The transverse abdominis muscle is activated first at 30 meters (0-second baseline), responsible for maintaining trunk rigidity.

第二层级（近端肌群）：臀大肌在0.05秒后激活（F=2，间隔比2/3≈0.667≈1/φ），主导髋关节伸展。

第三层级（远端肌群）：股四头肌在0.08秒后激活（F=3，间隔比3/5=0.6），辅助膝关节蹬伸。

第四层级（末端肌群）：小腿三头肌在0.13秒后激活（F=5，间隔比5/8=0.625≈1/φ），完成踝关节跖屈。

Layer by layer.

Unravel it one by one.

It made her feel like her body's energy was acting as a rocket booster.

Gradually increase your speed.

It's like shifting gears.

Continuously removing restrictions.

Reaching a new speed limit.

Around 50 meters away.

They happened almost simultaneously.

Frazier erupted.

An incredibly powerful explosive force.

A six-second burst of power!

burst!!!
Frazier felt his body's energy release instantly.

It wasn't just the energy field that erupted that was terrifying.

They're also keeping busy with technology.

Support time compressed!

The single-step support time is only 0.12 seconds.

The knee flexion phase during the buffering phase lasts for 0.05 seconds.

The push-off phase lasts 0.07 seconds.

The extension time accounted for 58%.

Ensure maximum efficiency in exerting force.

Then the swing speed increases.

The angular velocity of the swing leg from landing to leaving the ground reaches 4.2 rad/s, approximately 240°/second.

This is achieved through the "hypersynchronous contraction" of the iliopsoas and rectus femoris muscles.

The swing time is only 0.16 seconds.

Frazier's high-speed running style and cyclical pattern stem from his lower leg length/thigh length ratio of 0.82!

It is far greater than the ideal value of 0.75.

This structure of her short thighs and long calves reduces the moment of inertia of her swinging leg by 12%.

I = 0.85 kg·m vs. conventional 0.97 kg·m.

According to the law of conservation of angular momentum, a higher swing angular velocity can be generated with the same muscle force.

At the same time, doing so also allows her Achilles tendon elastic modulus to reach 480MPa.

The elastic potential energy stored during the support phase can be released in 35% during the swing phase, assisting the lower leg to swing forward quickly.

Technically.

Even Su Shen thought so.

While Frazier is very talented, he is not among the most talented players in history.

Her ability to maintain her form is directly related to her technical skills.

In other words, her technical ability is indeed among the best of female athletes.

Even Su Shen thought so.

Quite excellent.

If you put yourself in a scientific system like Jamaica for training.

It's highly unlikely that this can be achieved.

Unless it's a completely new version of myself.

Otherwise, it wouldn't be possible.

This is enough to show that her peak performance could last for nearly 20 years.

This cannot be simply summarized as having extraordinary talent.

Otherwise, she would have reached her peak at the Beijing Olympics.

In 2025, it will still be able to break the 11-second barrier with its hard power.

Neither of them are open.

It's wide open.

You say it's not abnormal? Is that even possible?

The ability to understand and use technology.

Frazier is one of the best female athletes Suarez has ever seen.

You should know that she was almost 40 years old at this time.

Domestic athletes, even those nearing 40, can still break 11 by a significant margin.

Even in the broader context of Asia, at 25, you're already on the decline.

Meanwhile, they outlive you generation after generation.

This is the significance of scientific training, and the significance of applying technology.

Later on, your physical functions will definitely decline, but your skills will improve. At that point, it depends on whether your skills can compensate for the decline in your physical functions.

The more you make up for it, the less your grades will drop.

Chen Juan also activated the second phase of her six-second burst.

In order to maintain his extreme speed for a longer period of time.

Chen Juan made adjustments here.

By utilizing the Fibonacci layer, the contraction ratio of antagonist muscles to agonist muscles can be adjusted.

Perform the conversion.

Make sure the ratio of the contraction time of your agonist muscles follows the golden ratio.

Quadriceps femoris, agonist muscle, contraction time 0.16 seconds.

Hamstrings, antagonistic muscles, eccentric contraction time 0.10 seconds.

The ratio is 1.6.

Approaching φ.

Biceps brachii, the agonist of arm swing, contraction time 0.09 seconds.

Triceps brachii, antagonist muscle, relaxation time 0.055 seconds.

The ratio is 1.63.

Approaching φ.

According to the principles of muscle physiology, when the contraction ratio of agonist to antagonist is φ, the "braking-release" rhythm of the antagonist resonates with the force cycle of the agonist, which can reduce "antagonistic energy consumption" by 15%.

This increases their rapid energy consumption.

Increase your own maximum battery life.

Perhaps this won't allow me to directly increase my top speed.

However, it can delay its own extreme speed time.

That's good too.

This is a very promising change.

"Fraser and Chen Juan, they've both reached their full speed!"

"They've entered into a duel between two titans!"

It had indeed entered a duel between two heroes, because at this point, both of them had been separated by several meters.

As professional athletes, we cannot give up easily.

But after so many competitions, and still so far behind at this position, my technical strengths are no longer an advantage.

In fact, the outcome was already decided.

The strange thing is...

Chen Juan was initially wary of Okabaré.

This is the Nigerian female sprinter who, like herself, broke the 10.80-second barrier this year.

Actually.

They haven't appeared for a long time.

However, it's a good thing that he didn't appear, as it allows Chen Juan to focus on her duel with Frazier.

60 meters!
Frazier was in the lead at this point, but he didn't relax. He could understand why so many people were still not letting up.

To be honest, he's no ordinary person.

This indicates that her mental attributes are quite strong.

Fraser's high-speed swing arm technology features "high frequency, small amplitude, and asymmetric coordination".

It forms a precise coupling with the lower limbs.

The swinging range of the arms is 30° forward and backward.

Less than the usual 40°.

The oscillation frequency is 6.8 times per second.

More than double the step frequency.

This forms the "advanced arm swing" mode!
Each arm swing precedes the lower limb by 0.01 seconds!
In addition, there is asymmetric control.

That's what Frazier is doing now.

The left arm swings forward at a greater angle than the right arm by 5°.

The resulting leftward torque of 8 N·m cancels out the rightward torque of 7.8 N·m generated by the lower limbs pushing off the ground.

finally.

Keep the torso rotation angle within ±1°!

Su Shen watched, silently calculating in his mind—

From the perspective of mechanical coupling, the angular momentum generated by Fraser's swing arm forms an "anti-balance" with the angular momentum of the lower limb.

The angular momentum of the upper limb swing arm is -0.6 kg·m/s.

Counterclockwise.

The angular momentum of the lower limb pushing off the ground is +0.62 kg·m/s.

Clockwise.

The total angular momentum is close to zero.

±0.02kg·m/s.

Make sure your body moves in a straight line.

This is the only way to keep the torso rotation angle within ±1°!

Great.

awesome.

Su Shendu secretly admired Frazier.

This level of achievement is remarkable given Jamaica's research system.

If she were Emilia.

Then her skills will probably improve to another level.

To be honest, her skill level is...

It has already been limited by Jamaica's research system.

Jamaica itself held it back.

If there is now a 3D synchronous device for testing.

We'll definitely find it.

On Fraser's side, the activation time difference of the arm swinging muscles, namely the deltoid and pectoralis major, and the lower limb muscles, namely the gluteus medius and quadriceps femoris, is ≤2ms.

This "hypersynchronous" process improves the efficiency of force transmission.

Each step increases propulsion by 80N!

She is indeed strong; she truly deserves to be called a heroine and the first person in history to contribute to the continuation of women's careers.

The peak period is from the beginning to the ultimate peak and then to the tail end of the peak.

It's not even over yet in 2025.

Isn't that scary?
This has truly been a struggle passed down from generation to generation.

Reduce the internet speed from a few megabits per second.

I managed to get 100M or even thousands ofM.

You tell me, what a ruthless person this is.

As expected of a women's sprinter.

The longest river.

This strength.