The Su God of the Reopening of the Sports Arena

Chapter 2121 New arm swing mechanics technology! It’s finally ready after ten years

Bang——————————————————

The 92dB sound wave from the starting gun reaches the athlete's eardrum within 0.023 seconds.

Wu Zhiqiang started the first one.

When Yu Weili saw data and text flashing on the screen, he was completely drawn into it.

Semi-explosive lift-off: Using the "double-knee synchronous ejection" technology, the left and right knee joint angles are strictly symmetrical, both at 108°, and the synchronization rate of the electrical signals of the medial head of the quadriceps femoris when lifting off the ground is as high as 98%.

Support optimization: The base of the palm is pressurized to form a "triangular stability zone", with a peak pressure of 32N/cm, compared to 28N/cm for regular athletes).

Energy conduction: The ankle dorsiflexion angle is only 16°, compared to the normal 20°, shortening the force conduction path by 0.03 seconds.

Technical impact: At the moment of leaving the ground, the angular velocity of the hip joint reaches 850°/s, generating a vertical force of 1420N.

The center of gravity moves forward by 0cm during the 0.1-23 second stage.

When the second step length exceeded 2.08m, there was a slight ankle tremor of 0.004 seconds, and the rigidity of the Achilles tendon needs to be improved.

I……

I rely on.

Yu Weili, at his age, rarely says such things. He has seen all kinds of big scenes, but when he saw this set of data displayed on the screen.

Or was——

Deeply shocked.

In the past, this kind of thing might have been analyzed out through meetings.

But it's difficult to say it so clearly.

Even the current Ersha Island.

Before that, if you want to make these things clear thoroughly, you also need to hold meetings to analyze and study them, and think about them repeatedly.

What now?

Oh my god.

Just one system shows you everything clearly.

Even analytical opinions will be given.

Don't tell me whether it is 100% accurate or not.

Are there many aspects that have not been taken into consideration?

Can you guarantee that you can take all aspects into consideration and say it 100% accurately?

This thing can be used as an absolute reference.

Various analyses and supplements are being made within this.

This will greatly improve the efficiency of the entire team.

It also allows these people to see it clearly at once.

"this way?"

Yuan Guoqiang has obviously gone through this stage.

So at this time he looked more at Yu Weili next to him, with a boastful and slightly complacent tone.

And it's not just this one person.

The data of each person is displayed.

And they started showing up almost at the same time.

For example, the second one is Xuzhouzheng.

It is shown above -

Dynamic balance start: the original "vibration preparatory posture" completes 0.5 3mm center of gravity fine-tuning within 2 seconds before starting.

Asymmetric extension: left leg extension angle 42° vs right leg 45°, compensating for the 3° deviation in congenital pelvic rotation.

Neural pre-activation: The soleus muscle is activated to 180% of its resting state at the time of the command preparation.

Technical impact:

The maximum extension force of 0.05N was reached 1720 seconds after the gun went off (an increase of 7.8% over the previous one).

During the lift-off phase, the knee extension speed reaches 23 m/s, but the trunk rotational inertia consumes 5% more energy.

The difference in touchdown time between the first two steps is only 0.002 seconds (a balanced improvement compared to last year).

The third one is Zhao Haohuan.

Maximizing the leverage effect: With a height of 192cm and an ultra-long push-up distance of 80cm (75cm last year), the hip angle range reaches 62°.

Rotational inertia compensation: The left arm swings 8% larger than the right arm, generating 7.2Nm of anti-rotational torque.

Delayed activation strategy: The erector spinae muscles reach peak activation 0.03 seconds after leaving the ground (asynchronous activation).

Technical impact:

The starting blocks withstand a peak force of 1830N.

Step 3: When landing, the body should still lean forward at 39° (normal athletes should lean forward at 36°)

A vertical amplitude of 0.08 cm appears 0.7 seconds after leaving the ground (energy leakage needs to be optimized).

……

Good boy, long, long, long.

This is this.

Yu Weili was already dumbfounded.

He didn't know how to describe it.

Such a thing had never been thought of before.

In just a moment, the system calculated so many things and made corresponding plans.

This is simple.

This simply completely exceeded the upper limit of technological movement in Yu Weili's mind in the previous era.

This is how he looks.

It’s almost like...

Magic.

There is such a thing.

Even an ordinary coach.

It is estimated that we can also respond in a better and more targeted manner.

Even though there are still many aspects that the system has not thought of and need to be supplemented, the same thing applies: ordinary coaches probably don’t have this level yet.

No.

It’s definitely not at this level.

Yu Weili's first reaction was...

Don’t draw conclusions about these things in an instant.

I'm afraid I should give myself a month to study this kind of competition carefully.

It is not necessarily possible to draw so many conclusions.

And he.

It's done in a flash.

It was just a huge shock.

Looking at Yu Weili like this.

Yuan Guoqiang finally felt a little more balanced.

He still remembers when he first saw this system.

The whole brain is shocked.

It was like someone was hitting me over the shoulder.

The forehead hit the ground directly.

He even felt...

Will I be unemployed in the future?

Because even if it was himself.

Even if you spend a lot of time researching, you probably won't get so many answers from this one shot.

He couldn't even fool himself.

Saying a few harsh words in front of others is just for the sake of face.

But he knew it clearly in his heart.

No matter how much more time he is given, he may not be able to come up with so many answers.

Fortunately, after seeing his expression, Su Shen immediately thought of something to explain and told Yuan Guoqiang that no matter how good something is, it is just an auxiliary mechanism.

It also requires human adjustment and input.

The conclusions drawn by him cannot be relied upon completely, they can only be used as a reference to save the coaches and the team more time.

It is absolutely impossible to do without people.

Hear this.

Yuan Guoqiang felt better.

On second thought, it seems so.

With these things, the coach's productivity, imagination and accuracy will be greatly improved.

If you think so.

Isn't that a good thing?

You can be freed from heavy analysis tasks.

This is something I never dared to dream of before.

Yu Weili continued to watch.

Su Shen's side is his main concern.

It's not just because Su Shen is the fastest athlete in Asia right now.

Su Shen’s level is the highest.

For his analysis.

Only then can we see the value of this instrument.

Otherwise for ordinary people.

No matter how much analysis you do, it is just superficial.

This system will only be meaningful if it can promote people with high levels.

After all, this thing doesn't seem to be popular at the moment.

It costs a lot.

Then it can only be used on top athletes.

Su Shen is the best example.

Only by analyzing Su Shen's situation can we do so.

Only then can you see the quality of this thing.

Su Shen, bend your arms and start——

This technique enables him to keep the angle between the ground reaction force (GRF) vector direction and the body midline within 0.8° during the starting phase, while the average for international athletes is 2.5°.

Reduce lateral energy loss by 7%.

With the 42° forefoot curvature of the specially made carbon fiber spikes.

Achieve a 97% kinetic energy conversion rate at the moment of leaving the ground.

Muscle Activation Sequence:

0-50-100ms cascade activation of vastus lateralis → soleus → gluteus maximus.

The "muscle wave" formed.

Proprioceptive accuracy:

The ankle joint angle perception sensitivity reaches 0.3°, and the conventional sensitivity is 1.2°, ensuring 87% force line accuracy when touching the ground.

The start phase presents a precise muscle activation sequence:

1.0-30ms: Tibialis anterior (ankle lock)

2.30-50ms: Vastus lateralis (knee extension)

3.50-80ms: Gluteus maximus (hip thrust)

4.80-100ms: Latissimus dorsi (trunk stability)

Electromyography monitoring showed that the recruitment rate of type IIb fast-twitch muscle fibers in the starting phase was as high as 73%, compared with 65% for ordinary athletes. Combined with the unique "pre-activation-inhibition" training mode, the muscle stiffness reached 28N·m/deg at the moment of leaving the ground.

The average for Asian athletes is 21N·m/deg.

The dynamics of the bent-arm start: a triple elastic system.

The arm bend technique not only changes the morphology of the upper limbs, but also builds a multi-level elastic system.

1. Shoulder joint spring: 25° forward tilt angle combined with eccentric contraction of the trapezius muscle to store 38J of elastic energy.

2.肘关节杠杆：115°屈曲角度形成1:2.3的力臂比，放大摆臂动能42%。

3. Wrist joint damping: The wrist flexor muscle stiffness is increased to 18N/mm, reducing energy oscillation by 15%.

The 3D motion capture data at the moment of liftoff shows:

The shoulder angular velocity is 980°/s. The elbow extension velocity is 6.2m/s, and the conventional arm bending technique is 5.5m/s.

The forward acceleration of the head is 11.3m/s.

Technical features:

Ultra-compression energy storage: elbow joint 115° + shoulder joint 25° form a double spring system.

Precise force line control: The angle between the extension force vector and the body midline is controlled within 1.2°.

Technical impact:

The shoulder angular velocity at the moment of leaving the ground is 980°/s.

The stride frequency in the first 5 meters is 4.85 steps/second.

Step 3: When landing, the initial velocity of 3.9m/s has been established.

……

Yu Weili was stunned.

I was already dumbfounded when I saw the first part.

Now I am dumbfounded again.

This too.

It's so fucking scary.

This system.

This system is simply a magical tool.

Even if it is imperfect in many places, it is still a magical artifact.

Especially for someone who isn’t a top coach.

It can greatly improve his level!

Just thinking about it.

The rest of the people's are also displayed.

Bang bang bang.

Three golden steps.

Sagittal plane movement, swing forward to the horizontal line of the nose tip, beyond the previous to the chin, and swing backward to 15cm behind the hip joint, exceeding last year's routine of 10cm.

A three-dimensional swing space of 0.42m is formed.

Bang bang bang.

Four more steps.

Step out suddenly.

Seven steps are ten meters.

In the frontal plane compensation, the right arm abduction angle is 3° larger than that of the left arm, compensating for the 2.1 N·m trunk rotation torque in the starting phase!

Cross-sectional control, the peak angular velocity of wrist rotation reaches 620°/s, generating 8% additional propulsion!

In this competition, the rest of the team are actually very strong, and there are already four or five people who can do the bent-arm start.

I thought it would narrow the gap.

But in fact.

not at all.

The only one who narrowed the gap was someone other than Su Shen.

just like.

Su Shen himself is not among them.

Start accelerating.

Bang bang bang bang bang.

3D motion capture data display——

During the forward swing phase, the anterior deltoid activation reaches 95%.

During the backswing phase, the duration of the eccentric contraction of the latissimus dorsi is extended to 0.15 seconds.

The energy transfer efficiency of a single swing arm is up to 78%.

Then there's——

Arm swing dynamics!

Admission!

Asymmetric energy circulation system!

Su Shen's arm swinging technique here constructs a unique "figure 8 energy ring".

Its movement trajectory is fundamentally different from the straight-line swing of a regular player.

"Figure 8 energy ring"?

In fact, it is a three-dimensional swing arm trajectory control system.

Its core feature is the composite superposition of sagittal, coronal and transverse plane movements.

This composite trajectory forms a continuous "∞"-shaped closed loop during the movement, which can theoretically increase the energy transfer efficiency by 23% compared to conventional linear swinging.

But you don’t have the equipment to assist with this technology.

You'll never be able to do it.

Even if you know that you need to compound and superimpose, it is useless.

Because the human eye cannot be so precise, the body cannot know what is appropriate and what is the exact value without the assistance of a machine system.

This is advanced stuff, and everyone's physical conditions are more or less different.

Even your condition will be different every season.

Well, you will never be able to accurately cut into this three-sided complex pattern by yourself.

This requires machine assistance and system support so that there is a chance to combine theory and use it on humans.

This thing has not been researched before, so it would be a waste of time to do it directly.

and so.

Su Shencai didn't make any arrangements.

just now.

The conditions are ripe.

It's time to start making arrangements.

It can be done.

Compared with the original swing arm, this one has one more side, and compared with the traditional swing arm, it has two more sides.

Three-dimensional compound exercises versus single sagittal plane exercises.

In terms of energy conduction, this type of arm swing is the latest circulatory system of front swing to store energy and eccentric contraction of the trapezius muscle + back swing to release energy and concentric contraction of the latissimus dorsi muscle.

And originally? It is a one-way kinetic energy transfer, relying more on the inertia of the swing arm.

Even the arm swinging mode that Su Shen had used before only had two sides.

What now.

Add one more.

True Trinity.

Not to mention the muscle activation, the former's anterior deltoid activation degree of 95% + triceps coordinated contraction can form a "muscle wave", which greatly improves the synergistic efficiency.

The latter mainly relies on the activation of the middle bundle of the deltoid muscle below 85% and will not exceed 85%.

In terms of trunk stability, the former reduces the angular velocity of trunk rotation to 4.2°/s through coronal plane torque compensation, which is lower than the conventional 7.5°/s.

The latter requires additional core muscle compensation, increasing energy consumption by 12%.

There are more exaggerated and in-depth points...

That is.

Speed-related properties, arm swing angular velocity and step frequency are strictly synchronized.

Phase difference <0.01 seconds.

In contrast, the latter has a step-arm asynchrony of 0.03-0.05 seconds.

It looks small, but it can be raced in 40 to 50 steps in a 100-meter race.

Multiply them together.

There will be a qualitative change.

Besides, even if it is a quantitative change, it is still necessary.

It's already this level.

Don’t even mention 0.01s.

Even if it's 0.001.

We all try our best to complete it.

Can see the road.

For their level.

It is a kind of happiness.

20 m.

When Su Shen swung his right arm forward to the tip of his nose, the angle of his shoulder blade reached 42°.

38J of elastic energy is stored through the trapezius muscle.

When swinging back behind the hips, the latissimus dorsi releases energy to create a continuous thrust.

Thus.

can be directly converted into propulsive force through coronal plane abduction.

Reduce lateral energy loss by 3.2%.

In other words, by adopting this new swing arm mode, the energy transfer efficiency of a single swing arm can be increased.

The vertical amplitude fluctuation can be reduced.

Bang bang bang bang bang.

Footsteps break through the air.

Oh.

forget.

This arm swing mode can also reduce the cadence synchronization error value by swinging the arms!

Theoretically, it can be reduced by more than 68.

Doesn’t it feel scary?

Very scary?

pity.

Even scarier.

Not this yet.

Su Shen's "8-shaped energy ring" cannot be described as a three-sided display of power.

There is another effect.

It’s not showing now.

It can't be shown either.

Want to show.

Want to see it.

That depends on what happens next.

because--

This arm swing mode is more than just the above.

Also, the rate of lactate accumulation will decrease.

Theoretically, it can be reduced by 33%.

The lactate accumulation rate.

It is not what comes before that determines.

But...

Behind.

ps: New technology is brewing.

Everyone applauds.

What else will grow this year?

Don’t be impatient. It’s not over yet. Please read on. . . . . . . . . . . . . . . . . . . . . . .