The Su God of the Reopening of the Sports Arena

Chapter 2427, page 9.52! Alright, stop dawdling, Yusien, it's time to finish warming up.

Bang!
A six-second burst of power!

Su Shen felt as if he had been electrocuted!

The energy within my body felt like it was about to explode.

The muscles suddenly became full of kinetic energy.

Bang bang bang.

The forward swing reset technique reconstructs muscle force generation patterns!
From "passive compensation" to "active driving"!
50 meters!
Precisely activate the core hip flexor muscles and unleash their contraction potential!

It's important to know that the iliopsoas muscle is the core power source for hip flexors, and its contraction efficiency directly determines the magnitude of the forward swing force of the hip joint. In traditional running, because the forward swing phase of the swing leg relies excessively on the knee joint, the activation sequence of the iliopsoas muscle lags behind the extension of the supporting leg by 50-80ms, and its activation intensity is only 65%-70% of the maximum voluntary contraction.

It will take until 2022 for this theory to be discovered.

Not to mention now.

This delayed activation prevents the iliopsoas muscle from working within the optimal range of muscle length-tension relationship.

When the supporting leg leaves the ground, the iliopsoas muscle is in a state of overstretching. The optimal length for it to generate maximum contractile force is 1.2-1.3 times its resting length. Overstretching will lead to a decrease in the efficiency of muscle cross-bridge connection and a 20%-25% reduction in muscle force output.

Su Shen unleashed a rapid burst of speed, then employed a forward swing reset technique through "action timing optimization" and "neural control guidance."

It completely changed the activation state of the iliopsoas muscle.

In terms of the timing of the movement, this technique advances the activation point of the iliopsoas muscle to the end of the supporting leg extension.

That is, 30-40ms before the supporting leg leaves the ground.

此时髂腰肌长度恰好处于1.2-1.3倍静息长度的最优区间，横桥结合数量比传统跑法增加30%以上，收缩速度提升15%-18%。

From a neural control perspective, in technical training, athletes are guided to actively contract the iliopsoas muscle through "visual feedback + electromyographic biofeedback," which increases the integrated electromyographic value of this muscle from 0.35 mV·s in traditional running to 0.48 mV·s.

Activation strength increased by 37.

According to experimental data from Su Shen, after adopting this technology, the hip flexion angular velocity of athletes increased from 350°/s in the traditional running method to 420°/s.

The forward swing force is significantly enhanced.

It directly drives the hip joint power output to break through traditional limits.

55 m.

Su Shen's arc-shaped ground-gripping motion combined with the front swing.

Arc-shaped front swing.

It inhibits excessive contraction of antagonistic muscle groups and reduces energy consumption.

In traditional running, another major loss in hip joint power output stems from "unnecessary contraction of antagonistic muscle groups." The flexion and extension movements of the hip joint are completed by the hip flexor and hip extensor muscle groups working together, and in normal exercise, the two should be in an "alternating activation" pattern.

However, due to imprecise movement control in traditional running, the hip extensor muscles remain activated to a certain extent during the hip flexion phase, creating an "antagonistic conflict".

For example, during the forward swing phase of the swing leg, the iEMG value of the gluteus maximus in traditional running is 0.22 mV·s, accounting for 62.8% of the iEMG value of the hip flexor muscles.

This excessive antagonism consumes a lot of energy to counteract hip flexion forces, resulting in a decrease in net power output from the hip joint.

Suarez is now using an arc-shaped forward swing.

This allows the forward swing reset technique to effectively inhibit excessive contraction of antagonistic muscle groups through "motion pattern reconstruction" and "muscle synergy training".

In terms of movement patterns, this technique emphasizes "hip joint-led swinging," which controls the pelvis to maintain a neutral position and avoids excessive posterior pelvic tilt that could trigger compensatory contraction of the gluteus maximus.

When the pelvis is neutral, the initial tension of the gluteus maximus decreases, the activation threshold increases during the hip flexion phase, and it only actively contracts during the backswing phase of the swinging leg.

After adopting this technology, Su Shen's iEMG value of the gluteus maximus during the forward swing phase of his leg decreased to 0.08 mV·s, which is only 36.4% of that of his previous running method, and the antagonistic conflict was significantly alleviated.

From the perspective of energy loss, the energy consumption of excessive contraction of antagonistic muscle groups accounts for 18%-22% of the total energy consumption of the hip joint.

This technology reduces this percentage to 8%-10%.

The saved energy can be directly converted into propulsive power for the hip joint.

This theoretically increases peak power output by 10%-12%!

60 m.

Su Shen's speed is getting faster and faster.

The power output of the hip joint is not the result of a single muscle action, but rather the product of the coordinated work of the core muscles, hip muscles, and lower limb muscles. In previous running techniques, the activation sequence of the core muscles and hip muscles was not synchronized, with the core muscles activating later than the hip muscles. This resulted in insufficient pelvic stability, failing to provide a stable fulcrum for the hip joint and thus affecting power transfer.

For example, during the push-off phase of the supporting leg, the activation of the transverse abdominis muscle in the previous Su Shen running method was 60-70ms later than that of the iliopsoas muscle, and the pelvis tilted to the left and right under the action of the push-off force.

The tilt angle is approximately 3°-5°.

The direction of force exerted by the hip joint deviates from the forward direction by 5°-8°.

Part of the power is decomposed into lateral forces.

It cannot be fully used to propel the body forward.

This isn't a curve.

What do you need so much lateral force for?

Too much lateral force will definitely affect your forward momentum.

Suarez uses the forward swing reset technique and "core-hip synergy training" to build a more efficient "kinetic chain" to enhance his high-speed running.

This technique requires athletes to actively contract their core muscles 10-20ms before the supporting leg pushes off, so that the iEMG value of the transverse abdominis reaches its peak earlier, 50ms earlier than the traditional running method. At this time, pelvic stability is improved by more than 40%, and the tilt angle is controlled within 1°.

And vice versa.

A stable pelvis provides a "rigid fulcrum" for the hip joint, enabling the contraction force of the iliopsoas muscle to be efficiently transmitted in the forward direction, avoiding lateral force loss.

At the same time, the technology also optimizes the synergistic relationship between the rectus femoris and hamstring muscles.

During the final phase of the swing leg, the rectus femoris flexes the hip and extends the knee, and the activation time difference between the rectus femoris and the hamstrings flexing the knee and extending the hip is shortened from 40ms in the traditional running method to 20ms, improving muscle synergy efficiency by 50%.

This further enhances the continuity of power output from the hip joint, preventing any "disruption" in power output.

A problem that is so troubling to everyone.

A lateral force that is difficult to dissolve.

Now, they've been turned around and are being used by Su Shen.

Use technical means.

Transform it into your own journey forward.

Become your own driving force.

So-called science and technology.

That's the charm.

65 meters!
Normally, at this time, athletes at their peak speed will start to have problems with their speed after a 10-meter split.

This is true for people like Suarez, and it's also true for Coleman.

There isn't much difference.

This is because, during running, energy needs to undergo the transformation from "muscle chemical energy → mechanical energy → body kinetic energy".

Furthermore, the energy needs to be transferred through the path of "supporting leg → pelvis → swinging leg → body center of gravity".

When the hip joint's power output reaches its limit, the number of "loss points" in the energy transfer path increases significantly, resulting in a large amount of energy not being converted into effective propulsion.

Su Shen directly adopted the forward swing reset technique to optimize the "path length", "transmission timing" and "direction of force" of energy transfer.

This will increase energy transfer efficiency from 55%-60% in traditional running to 70%-75%.

Provides the energy foundation for breakthroughs in power output.

Simply put, it means using the front swing reset technology system to optimize the energy transfer path.

From "loss-prone transmission" to "high-efficiency transmission"!
It's just magical.

70 meters!
In his previous running style, Su Shen had a problem with "excessive forward extension of the lower leg" during the forward swing phase of his swing leg, that is, the knee joint straightened too early, which led to an increase in the range of motion of the swing leg.

The distance from the center of the hip joint to the toes is approximately 1.1-1.2m.

According to the rotational law M=Iω, torque M=force F×lever L, and moment of inertia I=mass m×radius r, when the torque remains constant, the moment of inertia is proportional to the square of the radius. An increase in radius will inevitably lead to a decrease in angular velocity ω.

Experimental data shows that the angular velocity of the swing leg in traditional running is approximately 320°/s.

The increased moment of inertia extends the swing time of the swing leg to 280-300ms, causing the stride frequency to be unable to support the descent.

Once the step frequency decreases.

The energy generated by the extension of the supporting leg cannot be quickly transferred to the swinging leg.

This ultimately leads to excessive energy consumption during the support phase.

Here, Su Shen directly opened a branch.

The knee joint is slightly flexed by using the forward swing reduction technique.

because.

The forward swing reset technique significantly shortens the energy transfer radius of the swing leg by "controlling the slight flexion of the knee joint".

该技术要求摆动腿前摆阶段膝关节保持120°-130°的微屈角度，此时从髋关节中心到脚尖的距离缩短至0.8-0.9m，转动惯量比传统跑法降低40%-45%。

With the iliopsoas muscle contraction force remaining unchanged, increasing the angular velocity of the swing leg to 450°/s and shortening the forward swing time to 200-220ms will not only prevent the stride frequency from decreasing, but may even increase it.

At least it can continue to be maintained.

In that case.

An increase in angular velocity directly leads to an increase in the linear velocity of the swinging leg.

Previously, the linear velocity of the swing leg's toes in the running technique was about 6.5 m/s. After adopting this technique, it has been increased to 8.2 m/s. The increase in linear velocity allows the swing leg to complete the forward swing and landing more quickly, providing more time for the supporting leg to push off.

This, in turn, increases the pressure of the supporting leg on the ground.

The running distance has increased from 2.8 times body weight to 3.2 times body weight.

This allows for greater ground reaction force, propelling the hip joint's power output beyond traditional limits.

This means shortening the energy transfer radius of the swing leg.

Increase angular velocity and linear velocity.

such……

This was observed by Gatling and his men.

Su Shen is like he's been given a cheat code.

75 meters!
At this point, physical fatigue begins to intensify.

In the past, we rushed too hard in this place.

Another wave of extreme bursts has arrived.

Subtle problems may arise in various aspects of bodily function.

These subtle issues ultimately manifest in sprinting movements as slight disconnects between different actions.

Ultimately, this affects the overall transfer of energy.

This disrupts the transfer of energy.

The speed will naturally be slower.

it's here.

Su Shen did not choose to sit idly by and wait for his death.

Instead, they adopted an optimized timing sequence for "pedaling and swinging coordination".

This eliminates the interruption in energy transfer.

After all, in the gait cycle of running, the extension of the supporting leg and the forward swing of the swinging leg are continuous energy transfer processes. If the timing of the two is not synchronized, an "energy transfer gap" will occur.

This means that after the supporting leg push-off, the swing leg has not yet generated effective momentum, causing a decrease in the forward speed of the body's center of gravity and fluctuations in the power output of the hip joint. In previous running techniques, Zhao Haohuan's timing difference between the end of the supporting leg push-off and the beginning of the swing leg's forward swing was approximately 30-40ms.

At this time, the body is in a state of "unsupported power".

The forward speed decreases by 5%-8% due to the center of gravity.

Hip power output drops from peak to below 80%.

The path to ultimate success has been too costly in the past, and it seems there's no way to avoid it here.

But actually it is.

At least there are ways to alleviate it.

For example, what Su Shen is doing now.

By utilizing the forward swing recovery technique and through "push-swing synchronization training", the timing difference between the extension of the supporting leg and the forward swing of the swinging leg can be shortened to 10-15ms.

This will essentially eliminate the interruption in energy transfer.

The core of this technology lies in "using swing to drive the pedal".

At the end of the supporting leg's push-off, the momentum of the swing leg's forward swing has already been generated. At this point, the push-off force of the supporting leg and the forward swing force of the swing leg form a "combined force," jointly propelling the body's center of gravity forward. From an energy transfer perspective, in previous running techniques, 30%-35% of the energy from the supporting leg's push-off would be consumed due to body inertia during the "gap period." This technique reduces this loss rate to 10%-12%, with more energy being used to enhance the body's kinetic energy.

Su Shen conducted an experiment and found that after adopting this technology, the fluctuation range of his body's center of gravity forward speed decreased from 0.4m/s in the traditional running method to 0.2m/s!

The stability of hip joint power output is improved by 60%!

The power decay rate after 30 seconds of continuous exercise decreased from 18% to 10%!

It effectively breaks through the limit of "rapid power decay" in traditional running methods!

You said it like this.

Why isn't it fast?

There are fewer interruptions in energy transfer.

Then the energy transfer efficiency will naturally be higher.

Naturally.

You'll be able to run more steadily, faster, and more powerfully here.

80 meters!
Adjust the direction of force transmission to reduce energy loss during decomposition!
We're about to enter the final sprint zone.

In previous running techniques, due to an unreasonable hip joint movement trajectory, the force generated by the extension of the supporting leg would deviate from the direction of the body's forward movement, forming a "lateral component force," which caused the energy to be decomposed into "forward propulsion force" and "lateral force."

Lateral forces cannot be used to propel the body forward; instead, they become a significant source of energy loss.

For example, in the previous running method, the hip adduction angle here was about 8°-10°.

The lateral component of the supporting leg's push-off force accounts for 15%-20% of the total force.

Forward propulsion accounts for only 80%-85%.

And what he is doing now is—

The forward swing reduction technique adjusts the direction of force transmission to be consistent with the direction of body movement by "pelvic neutral position control" and "hip joint motion trajectory optimization".

Keep the deviation angle within 2°.

Significantly reduces lateral force loss.

However, this technique requires athletes to keep their pelvis neutral during running, avoiding excessive tilting or rotation of the pelvis, so that the flexion and extension movements of the hip joint always proceed along the "sagittal plane" (i.e., the anterior-posterior direction), rather than the "coronal plane" (lateral direction) movement in the previous running method.

Biomechanical calculations show that when the deviation between the hip joint movement direction and the forward direction decreases from 8° to 2°, the proportion of lateral force decreases from 18% to 5%.

向前推进力占比从82%提升至95%。这意味着支撑腿蹬伸产生的能量几乎全部转化为向前推进力，髋关节的净功率输出，向前推进功率，从传统跑法的1500-1600W提升至2000-2100W。

It's equivalent to...

It directly breaks through the bottleneck of "insufficient propulsion power" in traditional running methods.

that's it.

Bang bang bang bang bang.

Bang bang bang bang bang.

Su Shen...

It truly achieves the reconstruction of muscle force generation patterns through the forward swing reset technique!
From "passive compensation" to "active driving"!
The energy transfer path of the front swing reset technology has been optimized!

From "loss-prone transmission" to "high-efficiency transmission"!
that……

You tell me what you think.

Why isn't it fast?

How can I not be fast?

How exactly can we slow it down?

It can't be any slower!

Especially this one, which is a blessing-type wind.

Everything was set up for Su Shen with all the necessary conditions.

"Su Shen has completely overwhelmed the rest!"

"I don't know if it's just my imagination, but I feel..."

"The entire rapid takeoff wasn't caught up; instead, the gap is widening?"

Yang Jian thought he was imagining things.

After all, such a thing was extremely rare for Su Shen in the past.

Su Shen is an athlete with an exceptional future.

After seeing it so many times, I feel that this part is a bit too far apart, which is unacceptable.

Again.

I still haven't watched enough.

The brain, naturally, hasn't gotten used to it or accepted it yet.

but it does not matter.

I'll see more in the future.

I've seen it a lot.

I've received more.

You'll get used to it.

Bang bang bang bang bang.

Bang bang bang bang bang.

Su Shen moved with tremendous speed.

He doesn't even need to know how much it has been pulled back.

Anyway.

There wasn't a single person close to me.

He even wanted to look back.

There was such a fleeting moment.

He also somewhat understood why Bolt liked to look around during races.

Because it felt like there was no one around.

It's really great and fun!

call--------

"Su Shen".

"The line is pressed... no, there's no line pressed!"

"Easily crossed the finish line..."

"9.52!!!!!!!!!!!!"

"9.52!!!!!!!!!!!!!!!!!!"

"WL!!!!!!!!!"

"They're back!!!!"

Everyone knows now that Suarez and Bolt are going head-to-head.

Yang Jian.

Of course, I'm genuinely happy to see Su Shen achieve even better results.

in fact……

The second Gatling gun.

He ran another 9.69 seconds.

But this time.

Who cares about his grades?

Everyone had Bolt's WL taken away by Suarez...

I feel invigorated.

After all, this year's stage is huge.

If you're not from the Suzhou Institute of Technology, don't come here.

A lightning-fast showdown.

There is also an ordinary giant.

Why are you interfering?

What are you trying to steal the show from?

Su Shen is in Stockholm.

Amidst cheers from the crowd.

He didn't even need to look for the camera anymore.

The camera had already obediently moved closer.

They seemed afraid of missing out on this ongoing drama.

In the history of track and field.

In the history of sprinting.

It's so continuous, so intense, and so head-to-head.

Still the first time.

Now?

Nobody wants him to stop.

I don't want to see anyone.

No matter if you are Jamaican.

We're still family members who grow flowers.

Even if you are a track and field enthusiast from another country watching the spectacle.

This event will be unprecedented and historically rare because of its excitement.

I don't want to stop.

Although I know there will always be an end, for now...

It's better if it's longer.

Longer.

The longer the better.

"Yosem".

Have you finished warming up?

"Now that you've warmed up, let's get to the main course."

"Stop procrastinating."

"See you in a lightning game at 9:40+."

Suddenly.

The entire audience.

All viewers in front of their television sets.

They were all taken aback by Su Shen's shout.

It poked right into my forehead.

A strange sense of excitement.

Follow his words.

It rushed up to the top of his head.

P.S.: Happy National Day everyone! Here's the third update yet!!!

This book is entering its final stage. Let's all give it one last push and have the ultimate showdown!!!