The Su God of the Reopening of the Sports Arena

Chapter 2504: Under extreme pressure, if you can't withstand it, you die!
Bang bang bang bang bang.

Bolt's performance in the high-speed zone was truly terrifying.

Especially the rapid burst to the fourth gate.

It's already instantaneous speed.

Heading towards 12.78 meters.

This speed is irresistible.

In any case, only Usain Bolt is capable of doing it right now.

So Bolt must be incredibly fast here.

There is no way to resist here.

Su Shen came to terms with this reality.

So naturally he would look for ways to defend against it.

Throughout the entire scene.

What you are seeing is the rapid burst phase.

Even if Su Shen unleashed the third stage of his six-second burst.

Even so, Bolt still managed to erode his lead significantly.

It truly deserves to be called the representative of absolute human speed.

From the perspective of the original end of humanity, in the original timeline, in Berlin in 2009, Bolt ran 9.58 seconds, and his overall speed was only 44.72 km/h.

12.42 m/s!

And now, he is already on his way to breaking the 46 km/h barrier.

Bolt, of course, had no idea what Suarez was doing.

He only knew what he had to do.

After 50 meters, his speed limit began to open.

If we say that the upgrade of the three-joint torque technology empowers the start-up phase (0-10 meters) by optimizing torque timing and amplifying ground reaction force, then the answer is yes.

The three-joint torque technology upgrade enhances the acceleration phase (10-30 meters) by providing a synergistic boost in torque superposition effect and stride length and cadence.

The upgrade to the three-joint torque technology enhances power delivery in the first 20 meters (30-50 meters) of the race by establishing peak torque output and a faster plateau.

The effectiveness of the three-joint torque technology in the 50-70 meter high-speed range is thus achieved by extending the steady-state torque output and the speed plateau period to the extreme.

Because 50-70 meters is the absolute maximum speed zone in the entire sprint, its core technical goal is not to continue to increase speed, but to maintain the steady-state output efficiency of torque on the basis of the peak torque output in 30-50 meters, extend the speed plateau period to the extreme, and thus break through the human speed threshold of 46 km/h.

For Bolt, the core technology in this range is the "torque attenuation compensation mechanism" based on three-joint torque technology, combined with the large lever aerodynamic optimization of the ultra-long arm span, to achieve a dominant performance of "no attenuation of torque output and no drop in peak speed".

This is also the key to his ability to continuously break through the top speed after 50 meters, transforming the fourth stage of the 6-second rule from an accidental burst into a controllable technology.

So what is the "torque attenuation compensation mechanism"?
The "torque attenuation compensation mechanism" is...

The "torque attenuation compensation mechanism" is a biomechanical technology system specific to the extreme speed zone of sprinting. Its core definition is:
Through proactive technology design and adaptation to body function, a series of coordinated movements and physiological regulation strategies are employed to counteract the decrease in torque output in the hip, knee, and ankle joints caused by anaerobic metabolic fatigue and lactic acid accumulation in muscles, thereby maintaining steady torque output.

In layman's terms, when entering the 50-70 meter speed zone, athletes' muscles produce lactic acid due to continuous high-intensity contraction (anaerobic metabolism), which leads to a decrease in muscle contraction force and consequently a reduction in torque output from the three joints, known as "torque decay".

This is an inevitable phenomenon caused by the limits of human physiology, and it is also the core reason why ordinary athletes cannot maintain their top speed and experience short speed plateaus. The "compensation mechanism" essentially uses the synergy of technique, strength, and neural regulation to "make up" for this diminished torque, keeping the torque output stable at over 95% of its peak value, thereby preventing a drop in speed and achieving sustained top speed.

From a biomechanical perspective, there are two core causes of torque decay:
1. Decreased active muscle contraction force.

Lactic acid buildup inhibits muscle fiber excitation.

2. Reduced power chain transmission efficiency.

Muscle fatigue leads to deviations in joint range of motion, decreased core rigidity, and increased energy loss during torque transmission.

Therefore, the core of the "torque attenuation compensation mechanism" proposed by Amelica is two-way compensation:

First, it compensates for insufficient muscle contraction force.

Secondly, it compensates for losses in the powertrain transmission, ultimately achieving the goal of "no decrease in torque output and no drop in peak speed".

This is also the core support for Bolt's ability to break the 46 km/h barrier after 50 meters and transform the fourth stage of the 6-second rule into a controllable technology.

Yes, Bolt's exclusive technology is also custom-made.

Through scientific simulation, they successfully identified Bolt's torque decay compensation mechanism.

It is not simply an upgrade of the "passive anti-aging" methods used by ordinary athletes.

Instead, it should be based on the advantages of its 1.96-meter height and super long wingspan, combined with the "customized closed-loop compensation system" formed by the upgrade of three-joint torque technology and two years of hard work. Its core uniqueness is reflected in four aspects.

This is completely different from the standardized compensation model used by ordinary athletes.

This is the effect that Bolt is demonstrating now.

Compensation power source.

It is driven by a combination of "upper limb leverage inertia and elastic potential energy", rather than by a single muscle exertion.

Unlike the torque decay compensation of ordinary athletes, which relies on the "passive anti-fatigue" of the lower limb muscles.

By strengthening muscle endurance and forcibly maintaining contractile force, the essence is "compensation from a single power source," which has low compensation efficiency, can only offset 5-8% of torque attenuation, and is very likely to aggravate muscle fatigue, causing the compensation to be unsustainable.

Bolt's compensation mechanism is based on "dual-source synergistic compensation," with the core source of power coming from...

Exclusive advantage of extra-long wingspan!
I never thought it could be used like this.

Mills was surprised when he first saw it.

I never imagined it could be like this.

Of course, it was no use for him to think about it.

Because this isn't something you can solve just by thinking about it.

Rigorous scientific calculations are required.

Alica considers Bolt to be the primary source of motivation:
This refers to "moment of inertia compensation" for ultra-long boom spans.

In the 50-70 meter speed range, Bolt maintains a stable arm angle of 115°. By increasing the inertia of the upper limb swing and leveraging his exceptionally long arm span, he enhances the swing moment of inertia, generating a continuous traction torque. This torque is transmitted to the hips through core rigidity, directly offsetting the decrease in hip torque. This compensation is "passive inertial drive," requiring no additional energy expenditure from the lower limb muscles. Instead, it utilizes the inertia of the upper limb swing to "drive" the hips to maintain torque output.

This is something that ordinary athletes, with their short wingspan and insufficient momentum, cannot replicate.

It cannot be replicated.

That's the real secret weapon.

Otherwise, what kind of ultimate move would it be?

Second power source.

The Achilles tendon and muscles undergo "elastic potential energy cycle compensation".

The elastic potential energy compensation of ordinary athletes can only recover about 20% of the ground reaction force energy, and the compensation is concentrated in the ankle joint.

Through two years of rigorous training, Bolt strengthened the elastic deformation capabilities of his Achilles tendon, calf muscles, and quadriceps, enabling him to recover more than 35% of the ground reaction force energy. He also achieved full joint elastic potential energy compensation from the ankle to the knee to the hip, converting the recovered energy into torque to directly compensate for insufficient muscle contraction force.

This dual-drive compensation of "upper limb inertia + elastic potential energy" does not consume additional muscle energy and can achieve full joint torque compensation with a compensation efficiency of over 25%.

This is far higher than the 5-8% of that of ordinary athletes.

This is the core uniqueness of the compensation mechanism that the American laboratory wants to provide to Bolt.

Mills couldn't do it, and it's not that Jamaica's science and technology level is too low.

The issue of compensation timing could not be detected using multiple devices.

Therefore, it is even more impossible to obtain the key point of "predictive compensation" rather than "delayed compensation".

In Jamaica, Bolt's torque decay compensation was a "lagging compensation"—meaning he first sensed the torque decay, muscle fatigue, and speed drop, and then actively adjusted by exerting force. There was a 0.05-0.08 second time difference between the compensation action and the torque decay, which caused some torque loss to be irreversible, and the speed would still drop slightly.

The compensation mechanism that the US team has come up with for Bolt is "anticipatory compensation".

This is also the core manifestation of his transformation from "instinctive outburst" to "conscious control" after two years of arduous training in the United States.

Through long-term neuromuscular training, synchronous training with surface electromyography, and three-dimensional motion capture feedback, Bolt's central nervous system can accurately predict the timing of torque decay and trigger compensatory actions 0.02 seconds in advance for the torque change of each push-off after 50 meters.

The upper limbs make slight adjustments to the swing angle in advance to increase the inertial torque.

The Achilles tendon and muscles prepare for elastic deformation in advance, improving energy recovery efficiency.

This "predictive compensation" allows torque decay to be completely synchronized with the compensation action, without any energy loss, achieving "torque decay is compensation". Ultimately, the torque decay range is controlled within 5%, while the decay range of ordinary athletes is usually 15-25%.

For example, when Bolt senses that the hip torque is about to decrease from 160 N·m, the upper limb inertial torque will intervene in advance to compensate for the torque by 8 N·m.

The hip torque was kept stable at 152 N·m.

To significantly avoid a drop in speed.

Therefore, Amelika's level of sports science and technology, as well as her knowledge, is truly remarkable.

Underestimating this point will definitely lead to losses.

At least for this point, Jamaica's renowned coach Mills was impressed.

Everyone felt completely convinced.

A breakthrough point that I can't find myself.

Once they got there, they found it right away.

Only then can it provide excellent direction.

What if you're not satisfied with that?
As a coach at this level, one must have a basic understanding of self-cultivation and awareness.

He thought he was sending Bolt there.

Especially now that he has coached Bolt to his limits.

Send it over for another breakthrough.

It's a perfectly fine thing.

Even many Jamaican coaches and track and field fans criticized him, saying that he was openly admitting that Jamaica's coaching level was not as good as that of the United States.

He stopped caring.

Because he knew very well that a gem like Bolt, in his hands, had already been sculpted to its limit.

Since we've reached our limit, let's leave the rest to the remaining people.

Even if it means bearing the blame.

If we could see Bolt in an even stronger form.

I've been training this disciple for so long.

And I'm willing to do it.

As the speed continues to increase.

Bang bang bang bang bang.

The door to high speed is already in front of us.

In this place, because the body must be prepared to push the limits of human super speed, it is easy to get injured if you are not prepared.

Moreover, if the body is not properly prepared, the impact will be more of a matter of chance than a certainty.

After all, it opens the door at 46 kilometers per hour.

It's not just about having talent.

Indeed, to fully master it, you will need more scientific and technological support.

The solution provided by the United States reached approximately 60 meters.

Compensation transmission.

"Fully rigid power chain transmission" reduces energy loss.

The efficiency of torque compensation depends primarily on the transmission efficiency of the power chain. For ordinary athletes, the compensation torque will experience a 15-20% energy loss during transmission due to insufficient core rigidity and deviations in joint range of motion.

This results in a significant reduction in the compensation torque actually applied during the push-off process.

Bolt's compensation mechanism, relying on its core technology upgrade, has built a "fully rigid power chain transmission system" to achieve "low-loss transmission" of compensation torque.

This is also a key factor supporting its uniqueness.

Bolt's feet are like the wind.

Core rigid lock!
In the 50-70 meter range, Bolt maintained the contraction intensity of his core muscles at over 90%, making his torso a "rigid transmission rod" to avoid compensating for torque.

Upper limb inertial torque and elastic potential energy conversion torque.

Lateral divergence occurs during conduction.

Precise joint angle control!

Through training, Bolt precisely locked the angles of his hip, knee, and ankle joints in the 50-70 meter range at the "optimal angle for torque transmission".

Hip extension angle 170°, knee extension angle 165°, ankle plantar flexion angle 45°.

To avoid torque loss caused by joint angle deviation.

Upper and lower limb coordinated locking!
The timing difference between upper limb swing and lower limb extension is compressed to less than 0.005 seconds, allowing the upper limb inertial compensation torque and the lower limb elastic potential energy compensation torque to be fully superimposed during transmission, forming a "resultant force compensation" and further improving compensation efficiency.

This fully rigid transmission compensation mode allows Bolt's compensation torque transmission efficiency to reach over 95%, while ordinary athletes can only achieve 75-80%!

This means that for every 10 N·m of compensation torque generated by Bolt, 9.5 N·m can be applied to the push-off phase.

Ordinary athletes can only utilize 7.5-8 N·m.

Finally, once you reach the maximum speed...

start……

It uses "low-energy compensation" to accommodate extra-long heights, rather than "high-energy hard-to-handle".

Because the torque decay compensation of ordinary athletes is essentially "high-energy hard-hitting" - maintaining torque by forcibly contracting muscles, which leads to an accelerated rate of lactic acid accumulation, and the compensation cannot be sustained and can usually only be maintained for 3-5 meters.

Bolt's compensation mechanism is a "low-energy compensation" adapted to his 1.96-meter height and super long wingspan, which can be sustained for 10-15 meters. In a distance of 50-70 meters, this is also an important manifestation of his uniqueness.

Tall athletes already experience greater muscle load than ordinary athletes. If they adopt a "high-energy-consumption, hard-hitting" compensatory mode, they are prone to rapid fatigue and cannot maintain their maximum speed.

Bolt's compensation mechanism is essentially "leveraging" – utilizing the inertia of his exceptionally long arm span.

No need to exert any effort.

By utilizing the recycling of elastic potential energy.

Low energy consumption.

Instead of relying on the "hard resistance" of active muscle contraction, it significantly reduces muscle energy consumption and slows down lactic acid buildup.

For example, an average athlete needs to expend 1.8 times more muscle energy to maintain a top speed of 1 meter than Usain Bolt.

Under the compensation mechanism established for him by the United States.

Bolt's lactic acid buildup rate in the 50-70 meter range is only 60% of that of ordinary athletes!

This allows him to maintain a steady torque output throughout the 20-meter maximum speed range, ultimately breaking the critical speed of 46 km/h, while ordinary athletes often experience a drop in speed due to fatigue around 60 meters.

Bolt's torque decay compensation mechanism is far superior to that of all other athletes not simply because of his talent, but because of the triple superposition of "physical talent + technical upgrades + scientific training".

These three elements form a closed loop, and none can be missing—this is the core reason why other athletes cannot replicate this approach.

The essence is "talent is matched with technology, technology amplifies talent, and training solidifies advantages".

In the words of the researchers at the Amelica lab, it was—

Bolt's physique is naturally tailored for "torque attenuation compensation".

This is an innate advantage that other athletes cannot match.

This is also the core prerequisite for him to implement the new compensation mechanism effectively.

The inertial advantage of an ultra-long arm span.

The natural elasticity of muscles and Achilles tendons.

The rigidity of the core and torso.

Simply put, the compensation mechanisms for other athletes are "forcibly constructed after birth".

Bolt's compensation mechanism is "innate talent matching, and subsequent optimization and upgrading," meaning that his innate threshold determines that his starting point is far superior to everyone else's.

In other words, Bolt's compensation mechanism is not simply a manifestation of talent, but rather a transformation of his talent advantage into a technical advantage through customized upgrades of the three-joint torque technology.

This is also the core reason why he can do better than other exceptionally talented athletes, such as Gay.

After all, Guy was also one of their research subjects before.

I can say this with absolute certainty.

Guy could never do that.

That's why they were overjoyed at Bolt's arrival.

What could be better than realizing one's theory based on reality?

What excites researchers even more?
At least for his profession, this represents a dual realization of his personal and social value.

No one can resist such a temptation.

Therefore, Bolt's collaboration with the American laboratory this time can be described as a perfect match.

There was no conflict between the two sides.

After all, Bolt also wanted to use them to improve himself in order to compete against Suarez.

Both sides have a strong desire to learn from each other.

That's how they complement each other perfectly.

Once you understand what torque decay compensation is, you can roughly understand what Bolt is doing right now.

Only then can we understand why, after implementing this torque attenuation compensation mechanism, the three-joint torque technology was chosen to maintain its performance in the 50-70 meter extreme speed range.

It represents the ultimate extension of steady-state torque output and speed plateau.

Bang bang bang. 50 meters.

Steady-state output of torque at the three joints.

Attenuation compensation and powertrain rigidity maintenance.

Once in the 50-70 meter speed zone, the torque of the hip, knee, and ankle joints of ordinary athletes will show a linear decreasing trend due to the accumulation of lactic acid produced by anaerobic metabolism in the muscles.

Typically, hip torque decreases by 15%-20%, knee torque by 10%-15%, and ankle torque by 20%-25%, directly leading to a brief speed plateau or even an early drop in speed. Bolt's three-joint torque technology, through targeted attenuation compensation design, controls torque attenuation to within 5%, achieving steady-state torque output and providing core power support for sustained high speeds.

Bolt unleashed his explosive speed.

It is climbing rapidly and continuously.

From the core logic of torque output, the body posture in the 50-70 meter range has completely transitioned to an upright and uniform speed posture.

With the center of gravity stabilized at the midline of the pelvis, the output of torque from the three joints no longer relies on the "incremental increase" of active force exertion, but rather on the "rigid maintenance" and "energy recovery compensation" of the power chain.

Bolt's technical upgrades at this stage focused on enhancing the recycling of elastic potential energy in the Achilles tendon and muscles.

During this phase, when the foot pushes off the ground, the elastic deformation of the calf muscles and Achilles tendon stores about 30% of the ground reaction force energy.

During the swing phase before the foot lands, this stored elastic potential energy is rapidly released to compensate for the decrease in muscle contraction force. This elastic potential energy compensation mechanism, together with the torque output of the three joints, forms a dual-power source mode of "active muscle exertion + passive release of elastic potential energy".

This directly offsets the torque reduction caused by lactic acid buildup.

55 m.

Specifically, regarding the steady-state control of joint torque.

博尔特通过技术优化，将50-70米区间的三关节扭矩输出精度控制在峰值的95%以上：髋部伸展扭矩稳定在152N·m，峰值160N·m，衰减5%。

The knee extension torque stabilized at 133 N·m, with a peak of 140 N·m and a decrease of 5%.

The plantar flexion torque of the ankle joint stabilized at 171 N·m, with a peak value of 180 N·m and a decrease of 5%.

This steady-state torque output level far exceeds the attenuation threshold of ordinary athletes, and its core support lies in the rigid maintenance of the core torso and lower limb kinetic chain.

At the same time, Bolt always kept the contraction intensity of his core muscles above 90%, so that the force transmission efficiency of the torso, this "rigid transmission rod", was no less than 95% in the 30-50 meter range.

Ensure that the traction torque of the upper limb lever and the torque compensated by the elastic potential energy of the lower limb can be transmitted to the push-off phase without loss.

60 m.

The traction effect of the ultra-long boom transforms from "power superposition" to "torque stability anchor" at this stage.

Bolt's arm swing angle was slightly adjusted to 115°. This angle retains the traction force of the upper limb swing while increasing the swing radius to improve the inertial stability of the upper limb swing.

The traction torque generated by the swinging of the upper limbs is no longer directly superimposed on the hip torque, but is transmitted through the core to form a "stabilizing torque that resists torque decay".

When the hip torque tends to decrease, the inertial torque of the upper limb swing will be transmitted to the hip through the trunk, offsetting part of the torque decrease caused by muscle fatigue, thereby maintaining the steady state of torque output of the three joints.

This synergistic mechanism of "upper limb lever anchoring - lower limb torque compensation" is the core technical logic behind Bolt's ability to maintain torque without attenuation in the 50-70 meter extreme speed range.

At this point, it was already close to its top speed.

But there is still a little bit to go.

Precise regulation of neuromuscular control!
Consciousness-driven synergistic optimization of torque and resistance!

The last part is about the saying, "He who travels a hundred li is only halfway there at ninety!"

This final section of high-speed technical performance best exemplifies Bolt's technical upgrade from "talent burst" to "conscious control."

After two years of intensive training in the United States, his central nervous system was able to accurately sense the attenuation trend of torque output and changes in air resistance.

By adjusting the posture and movements in real time.

Achieve dynamic synergistic optimization of torque and resistance.

The core of this precise regulation is closed-loop control based on electromyographic signals and biomechanical feedback.

Bolt's central nervous system can sense the torque output intensity of the hip, knee, and ankle joints through muscle spindles. When it senses a decreasing trend in torque, it will automatically trigger a fine adjustment of the upper limb swing angle—increasing the arm flexion angle to 120°, increasing the inertial torque of the upper limb swing, and enhancing the compensation effect on hip torque.

At the same time, by adjusting the contraction intensity of the core muscle groups, the rigidity transmission efficiency of the trunk is maintained. When increased air resistance is sensed, the central nervous system instructs the upper limbs to fit more closely to the trunk, reducing the frontal area and lowering the drag coefficient.

This "consciousness-driven dynamic regulation" is different from the "instinctive outburst" at the Moscow World Championships.

At that time, his torque output and air resistance optimization lacked coordination, and he relied entirely on his body's instincts to maintain top speed.

In the 50-70 meter speed zone of the Bird's Nest, every swing of Bolt's arm and every core contraction was based on a precise perception of his own torque and external resistance.

It is a perfect fusion of technology, power, and consciousness.

Almost there. As his speed increased, Bolt himself felt that he had reached the gate.

All that's left is to put my two years of training into practice.

Reach out.

Push it away.

Push open this door.

Bang bang bang bang bang.

Torque loss control during lower limb landing cushioning!
Precise adaptation of "rigid ground contact - elastic force relief"!

Every time a foot lands, it becomes a dynamic interplay between the ground reaction force and the torque of the lower limbs.

When ordinary athletes land at high speed, they adopt a "soft cushioning" landing mode in order to maintain body balance. This involves a large bending of the knee joint and excessive plantar flexion of the ankle joint. This results in a large amount of torque loss when the ground reaction force is transmitted upward, which further aggravates the attenuation of torque in the three joints.

And what about Bolt?
Now, with his technological upgrade, he has built a customized landing model of "rigid ground contact - elastic force unloading".

Reducing torque loss during the landing process provides a safeguard for steady-state torque output.

In other words, the torque loss during high-speed landing stems primarily from joint angle deviations and insufficient powertrain rigidity at the moment of impact. Bolt's landing technique in the 50-70 meter range precisely targets three key joint angles!
Keep his ankle plantar flexion angle between 35° and 40°!

The knee flexion angle should be controlled between 140° and 145°.
Keep the hip extension angle between 165° and 170°!

This angle range ensures rigid contact between the foot and the ground, maximizing the absorption efficiency of ground reaction force, while also achieving "elastic force dissipation" of landing impact through the elastic deformation of the Achilles tendon and calf muscles!
This avoids direct impact on the joints, which could lead to torque loss, and at the same time converts the impact force into elastic potential energy, which is then added to the torque output of the next push-off.

More importantly, this landing pattern, combined with the swing of the upper limbs' exceptionally long reach, creates a torque balance linkage between landing and arm swing. At the instant the feet rigidly touch the ground, Bolt's upper limbs complete the forward swing to its highest point. The inertial torque generated by the exceptionally long reach is transmitted through the core to the hips, forming a downward stabilizing torque that counteracts the upward impact upon landing and prevents unnecessary fluctuations in the body's center of gravity.

This linkage mechanism allows Bolt to keep his torque loss during high-speed landing to within 3%, while the torque loss of ordinary athletes is usually 8%-12%. This advantage directly translates into additional support for steady-state torque output.

Okay, that feels good...

Arrived!

The gate to a top speed of 46 kilometers per hour!
He was pushed away!

And this isn't Lausanne; there's no wind speed here, and no altitude!

"Great! As expected of Bolt! Truly my best experimental specimen!"

This statement serves two purposes: first, to highlight the inspiring nature of Bolt's current performance, and second, to emphasize that these proud American athletes still believe they are a level above Bolt.

It just so happens that Bolt possesses such talent.

This arrogance is hidden in language.

It's hidden in attitude.

Hidden in the movements.

Just as their discrimination is ubiquitous, no one in real society dares to bring it up directly.

American.

This approach has been pushed to a new limit.

Bang!
Bolt entered the state of human speed limit, at which point no one could stop him.

Don't try to compete with him.

Now all you need to think about is how to slow down the rate at which he attacks and causes you to lose health.

After all, the instantaneous speed can reach 12.78.

It can travel at a speed of 46 km/h.

What else can you say?
Even with the speed fully increased, Bolt continued to maintain control.

It's no longer the kind of running that relies entirely on consciousness and instinct.

"Dynamic self-adjustment" of attitude stability!
This is……

Millimeter-level control of the center of gravity trajectory!

You should know that once the speed in the human body's maximum speed zone exceeds 46 km/h, any slight shift in the body's center of gravity will be amplified into a significant loss of speed.

For ordinary athletes, let alone at such high speeds, even at normal high speeds, the fluctuation range of the center of gravity trajectory is usually 5-8 millimeters, which causes some of the propulsive force to be used to correct the center of gravity shift and cannot be converted into forward speed.

Bolt's three-joint torque technology, combined with the balance advantage of his extra-long arm span, enables millimeter-level dynamic self-adjustment of the center of gravity trajectory, further improving the conversion efficiency of torque output.

The stability of the center of gravity trajectory depends primarily on the torque balance between the upper and lower limbs. Bolt's exceptionally long arm span, with its bent arm swing over a meter range, creates a "dynamic balance lever."

When the body's center of gravity shifts slightly upward due to the force exerted by pushing off the ground, the upper limbs will automatically increase the swing amplitude, and the increase in inertial torque will pull the center of gravity back down.

When the center of gravity shifts to the left or right, the swing speed of both arms will be finely adjusted in real time.

The arm on the same side accelerates, while the arm on the opposite side decelerates.

The position of the center of gravity is corrected by the torque difference.

This dynamic self-regulation is achieved entirely by the central nervous system through signal feedback from proprioceptors, without the need for active effort, and the adjustment accuracy is controlled within 2-3 millimeters.

At the same time, the steady-state output of torque from the three joints provides a power basis for the stability of the center of gravity—the torque output accuracy of the hip, knee, and ankle joints is controlled at more than 95% of the peak value, and the direction of the force exerted on the ground is always consistent with the direction of the body's forward movement, avoiding the shift of the center of gravity caused by deviation in the direction of force exertion.

This synergy of "precise torque output + dynamic center of gravity adjustment" allows Bolt's center of gravity trajectory to be almost a straight line in the 50-70 meter top speed range.

The conversion efficiency of propulsion reaches over 98%.

It has even surpassed the driving force and conversion efficiency of his Moscow counterpart here!

Bang bang bang bang bang.

Bang bang bang bang bang.

"Too fast, Usain Bolt is too fast!"

"His top speed is already comparable to the Flash!"

With Green's vast knowledge and keen insight, he instantly realized that Bolt's current top speed was no longer human.

No one can match him at top speed anymore.

Whether it's the current Su Shen or the previous second fastest Guy.

They're all the same.

After he had reached that instantaneous speed.

They're already defeated opponents, they're not even on the same level anymore.

Seeing such terrifying speed, how could Green, who has dedicated his entire life to sprinting, not be moved?
He did not think highly of Bolt before, mainly because he disliked Bolt's technique.

Usain Bolt's skills are getting better and better these days.

He even mastered some technologies that he himself didn't quite understand.

Even now, he is still eating Su Shen's food.

Faced with such a powerful display of speed.

We must also express our deepest respect.

Don't say it's him.

The same goes for the rest of them.

After all, it's human nature to pursue strength and speed.

It's something etched into our genes and bones.

It's wildness.

It's also a beastly thing.

This section encapsulates the essence of Bolt's training over the past two years.

This proves that breakthroughs in sprinting speed do not solely depend on increasing peak torque, but rather on the efficiency of steady-state torque output and the control of air resistance.

The large lever advantage of the ultra-long arm span is not only the power source during the start-up and acceleration phases, but also the core support for maintaining torque stability and reducing resistance in the high-speed zone.

This technical system constitutes Bolt's unparalleled "speed dominance" and makes him the only athlete in the history of human sprinting who can consistently break through the critical speed of 46 km/h in major competitions.

Deserved.

Absolutely well-deserved.

His body is now moving with more than just lightning.

There were even flashes of lightning.

It was as if a knife was rubbing the air on the entire runway until it was hot.

It even felt like it was burning.

Attack from behind.

Su Shen's spine.

"This……"

How could this be?
Yuan Guoqiang and the others were dumbfounded.

I never imagined that such a fourth-layer mode could be mastered autonomously.

This is the fourth stage of a six-second burst! Even Su Shen has never proposed a solution in this area.

Moreover, the Bird's Nest doesn't experience any wind, nor is it at much altitude.

It's a standard enclosed venue, plus a plain at a very low altitude.

This ability is demonstrated here.

This has exceeded the limits of their understanding.

This exceeded their pre-race assessment of Bolt.

Even Randy.

They all frowned slightly.

Even though he knew that Su Shen had a backup plan.

But faced with such a situation.

It resembles a scene of a locomotive ramming behind.

I couldn't help but feel a little worried for Su Shen.

Under such immense pressure.

Will you still be able to successfully execute what you want to do?
After all, this is the system.

For promising athletes.

This is also unprecedented.

It is estimated to be within the last half-century.

There will never be another like it.

Under such immense pressure.

Can you hold on?

Even the slightest deviation.

At such super high speeds.

Everything will be magnified infinitely.

you.

Sue.

Can?

Bolt possesses a speed that is almost despair-inducing.

Relentless and frantic encroachment.

But there was that fiery red figure in front of him.

It's like having no feeling at all.

They have no senses.

Shield the five aggregates.

Under the immense pressure from Bolt.

At human super speeds.

He is like Bolt.

Unlike Moscow.

There wasn't much panic.

There wasn't that much tension.

All that's left is focus.

concentrated.

All my energy.

They've all gathered at...

In the later stages.