This shot.
Su Shen not only crushed the barrier of the activation limit.
I guess the limit of the acceleration zone just now was also exploded by him.
Waiting for so many years.
I have been practicing hard for so many years.
Isn't it just waiting until now?
10 years of layout planning.
It's for this dynasty.
Amazing world.
Boerya acceleration zone…
like.
It seems that I didn't catch up.
It seems that the gap has not been narrowed.
this……
Is this possible?
Maybe there is.
But this gap is so close that the naked eye cannot see it.
That is to say.
It has become very small.
Very small.
The meat is difficult to determine.
Before Su Shen, facing Bolt, don’t look at the whole future, Su Shen is ahead.
But in fact, you look at the data separately.
You can see it clearly.
In fact, Su Shen can lead the future.
The most important thing to rely on is super startup.
I've been pulling here for a long time.
You can directly pull Bolt around 0.1.
later.
They are all in a state of being chased.
So it means that the whole future is ahead.
But in fact, split the data in detail.
You can discover the true leading position of Su Shen.
Only ten meters of starting.
This situation.
There have been signs last year.
This year.
A total change occurred.
And you have to know.
This Bolt is not the original Bolt.
This has been a wave of...
Bolt after hard work and self-discipline.
this.
Even Su Shen can withstand it.
This only means.
Bolt's progress in this area is indeed great under Mills' arrangement.
but.
On the other side of Su Shen.
Bigger.
Because now begins.
Su Shen is going to come up with more new things.
Do you think it’s high-end and awesome?
Feel sorry.
Front.
It's just an appetizer.
After eating these.
The meal just started.
"Start running on the way!"
"This is Bolt's strong zone!"
Yes.
Mitchell is right.
This is Bolt's East-West Strong Zone.
so.
Usain.
Take a good look.
this.
It’s the Wangwang gift package prepared for you.
Bang bang bang bang bang bang bang.
The acceleration zone is about to end.
Su Shen was about to look up and run on the way.
So is Bolt.
After the acceleration zone, he had surpassed Carter to come to second place.
Yes.
So on the scene.
It became Sushen vs Bolt again.
Red lightning vs black lightning state.
this.
Of course, it is also the scene that everyone wants to see when buying tickets in this game.
Promotional slogans and videos.
Isn't it just about these two people?
The rest.
Not that it's not strong.
Under the influence of this era, there have been changes to varying degrees.
Or evolution.
but……
In the end, I still can't keep up with the rhythm of these two lightnings.
Starting from Sushen's head-on defeat of Bolt in the final field of the Olympic Games last year.
He is already the real lightning.
Standing opposite Bolt as an equal.
The stage of the times.
Don't worry about how strong you were before.
He is a tiger-level player.
Still a giant.
There is actually no difference at this time.
They all have to make way for these two people.
These two people were as expected.
They were directly confronted head-on.
Su Shen has another killer move here.
As mentioned before, the previous technical connection technology nodes.
In fact, they are just a front.
Now we are about to start making real killer moves.
This is...
Three-dimensional ground reaction force regulation!
What is three-dimensional ground reaction force regulation?
When an athlete's feet come into contact with the ground, interaction will occur. According to Newton's third law, the ground will give the athlete a reaction force of equal size and opposite direction, that is, the ground reaction force.
This force can be decomposed into three dimensions: vertical direction (Fy), horizontal direction (Fx) and front-rear direction (Fz).
Vertical force (Fy) is mainly used to support the athlete's weight, overcome gravity and realize the body's airflow.
Horizontal force (Fx) is the main source of motivation to drive athletes to accelerate forward.
The force (Fz) in the front and back directions is relatively small, but it also plays an important role in maintaining body balance and stability.
The relationship between three-dimensional ground reaction force and sprint performance is-
Vertical direction:
A larger vertical ground reaction force can allow athletes to obtain a greater upward impulse at the moment of touching the ground, which helps to shorten the support time and increase the aerial height and time, thus creating better conditions for the next step of pedaling.
For example, the peak of the vertical ground reaction force of an excellent sprinter at the moment of taking off is high, and he can quickly push his body off the ground and achieve an efficient airflow stage.
Horizontal direction:
The horizontal ground reaction force directly affects the athlete's acceleration and speed. By increasing the horizontal pushing force, athletes can obtain greater forward propulsion force, thereby increasing the speed of starting and running on the way.
Research shows that in the acceleration stage, the magnitude of the horizontal ground reaction force of sprinters is positively correlated with the acceleration, and in the maximum speed stage, the maintenance of the horizontal force is crucial to maintaining the stability of the speed.
Front and rear direction:
Although the front and rear forces are relatively small in value, they play an indispensable role in maintaining the body's lateral balance and stability. During the sprinting process, athletes need to fine-tune the front and rear forces to maintain the body's linear motion on the track, avoiding wasting energy or affecting speed due to lateral deviation.
Then now do you understand a little?
Combined with the front of Su Shen in the plateau.
Reasons for constantly rushing to related technical nodes such as vertical forces and horizontal components.
That's right.
That's just a little trial.
A real connection point.
It's here.
During the starting stage, athletes use the rapid contraction of leg muscles through the squat starting position to push the ground back and downward, thereby obtaining a large horizontal ground reaction force and allowing the body to quickly obtain initial speed.
At this time, the reaction force on the vertical ground will also increase accordingly to support the body to quickly lift it from a low posture.
Research from Sushen Laboratory shows that the peak of the horizontal component of the ground reaction force in the starting acceleration stage is about 1.46 times that of the maximum speed stage, highlighting the key role of the horizontal force in the starting stage.
Entering the acceleration stage, the horizontal ground reaction force continues to drive the athletes to accelerate. As the speed increases, the vertical ground reaction force also needs to be maintained at a certain level to ensure the stability of the body and the aerial height, creating conditions for subsequent pedaling.
At this stage, the joints supporting the legs continue to stretch, and the hip muscles exert force to achieve the organic combination of pedal and pendulum. The joint muscles generate hip extension moments in the early stage of support, release energy to do positive work, and push the body forward.
Then the hip flexor group acts to absorb the energy generated by the hip flexor group, preparing to drive the support leg forward into the swing period.
So.
Next stage.
That is, after running on the way?
At this stage, maintaining horizontal ground reaction force is crucial to maintaining speed stability. At this time, athletes need to minimize the loss of horizontal force through efficient technical movements and muscle coordination.
At the same time, the reaction force on the vertical ground must ensure the body's airflow and smooth landing, and the dynamic characteristics of the hip and ankle joints are significantly related to the maximum running speed.
Larger hip extension and flexion torque and dorsal flexion torque of the ankle can produce greater propulsion force, and the increase in hip extension can improve the effect of ground reaction forces by increasing the step length.
Dorsiflexion of the ankle joint helps increase the reaction force of the soles and increase the forward driving force.
According to the relationship between three-dimensional ground reaction force and sprint performance, we can know-
Vertical direction and three-dimensional ground reaction force:
The first is support and vacancy.
Vertical ground reaction force directly affects the athlete's support time and aerial altitude.
Excellent sprinters can generate a large peak of vertical ground reaction force at the moment of touching the ground, which allows them to quickly push their bodies off the ground, shorten the support time, and increase the aerial height and time.
The key point is here!
Get up the small stool!
For every 0.01 second shortening of the support time, the step frequency can be increased by 1-2 steps/minute.
Bolt's support time during his peak period was only 0.08 seconds, which is one of the important factors in achieving the dual advantages of "step frequency + stride".
Of course, with Joyna's humanity at present.
There is still a gap.
But it's already quite terrifying.
Almost few men can catch up.
In the vertical direction, the ground reaction force interacts with gravity. If the athlete can convert the energy generated by the stomping into upward and forward kinetic energy through reasonable technical actions...
When landing, energy loss is reduced through buffering of the lower limb joints and stored elastic potential energy for the next pedal.
Then theoretically, it can...
Appropriate lower limb stiffness can reduce the impact force when touching the ground, reduce the risk of injury, and quickly rebound the foot, using elastic energy stored in muscles and ligaments.
Reduce energy loss.
Improve energy utilization efficiency.
Make running more efficient.
This is the first aspect of optimizing using three-dimensional ground reaction forces.
The second is the relationship between horizontal direction and three-dimensional ground reaction force:
Horizontal ground reaction force is the main driving force for athletes to start and accelerate.
During the starting stage, the strong horizontal pushing force allows athletes to obtain greater acceleration.
Then it's time to run on the way.
Continuous and stable horizontal force helps maintain high-speed running.
Research from Sushen Laboratory shows that the value of the ground reaction force in the horizontal direction and its ratio of the ground reaction force occupying the ground are linearly related to the movement speed, and the power of the horizontal ground reaction force and the movement speed are in a quadratic equation.
What does it mean?
To be simple, it is -
Reduce braking!
When landing, the brake force will be generated because the placement is often in front of the center of gravity.
Athletes need to use reasonable technical movements, such as keeping the knee joint fully bent, positioning close to the center of gravity, etc., to reduce the braking effect and use more energy to advance forward.
For people with faster speeds, especially top athletes, they emphasize the "ground-pulling" technology. They actively stretch their hips when they are not landed before they fall in front of their feet, and produce a "ground-pulling" action to bring the place closer to the center of gravity of the body, effectively reducing the stretching of the calf during traditional running, thereby greatly reducing the braking and braking force. At the same time, forward propulsion is generated in the "ground-pulling" link, combined with the rear pedal, and increase forward momentum.
Braking is reduced.
Can it be faster and smoother.
Is there no upper limit?
Since it is a three-dimensional ground reaction force, there is still one shortcoming.
Front and rear direction.
Although the ground reaction force in the front and back directions is relatively small, it plays a key role in maintaining the body's lateral balance and stability.
During the sprinting process, the athlete's body will be disturbed by various external forces, such as air resistance, curve centrifugal force, etc. By fine-tuning the front and rear directions, the athlete can maintain the straight line of the body on the track to avoid wasting energy or affecting speed due to lateral deviation.
After all three forces are reintegrated.
Su Shen ran on the way.
It also began to show different things.
Bolt thought, OK, Sue, you can.
It's great that you can run like this in front.
I can't run away from you if I start.
You can also withstand me in the acceleration zone.
That's OK.
Then take a look.
Are you running along the way???
Can you stand me on the way?
It is normal for Bolt to think so.
Running along the way has always been Su Shen’s weakness.
In other words, Su Shen turned from strong to weak, from attack to leader.
Of course it's not just Su Shen.
All the ultimate prospect athletes.
All have this problem.
Even if it seems that there is no problem, Morris Green can only do it in various segments.
If you let him have a good future.
Then there will be problems in other links.
The rest of the links are done.
It's impossible to be so fast in front of you.
It is a normal idea for Bolt to think so.
Su Shen is indeed a big step ahead of him here.
He didn't catch up with anything in the acceleration zone.
Even some of the naked eye can be ignored.
but.
Running along the way.
Running along the way, can you still withstand me?
Su.
You can run on the way.
When everyone started looking up.
Bolt suddenly noticed...
Something is wrong.
This guy.
Running along the way.
how.
So fierce too???
This chapter is not over, please click on the next page to continue reading! I saw Su Shen violently push forward.
Use the three-dimensional ground reaction force to optimize the angle of joint running on the way!
In sprinting, the coordinated movement of the hip, knee and ankle joints requires precise control.
Running on the way starts to enter the highest speed zone, even more so.
Su Shen used the three-dimensional ground reaction force to properly flex his knees and hips at the moment of landing, which increased buffering.
Reduce impact force.
At the same time, prepare for each subsequent pedal.
The flexion angle of the knee joint when it hits the ground is 130°-140.
This can effectively buffer the ground reaction force.
It also provides a good foundation for pedaling and stretching.
In the pedal stage.
Full hip and knee extension movements effectively convey muscle strength to the ground.
Generates greater ground reaction force.
Increase the hip extension angle.
This is……
improve.
Step length???
That is to say.
Su Shen’s previous series of operations.
After further opening of the pace limits.
In one breath.
It doesn't stop.
I also got started with step size.
This is to...
Catch it all in one go?
One game, you can make a big splash?
Yes.
You guessed it right.
That's what Su Shen really planned.
He just wants to take advantage of this game, not only to open the step frequency limit, but also to increase the step width.
Let yourself.
Completely enter a completely new realm.
Do you think you have made a breakthrough alone?
Feel sorry.
Compared to breakthrough.
I'm not inferior to anyone.
You Bolt is here.
The same goes for it!
Those foundations were laid in front.
Preparations made on the plateau.
Now it starts to show its power.
Step frequency and stride length.
This time, Su Shen is going to come together.
Just catch them all in one go!!!
Let yourself complete another evolution!!!
Super evolution!!!
Totally surpass.
The former self.
ps: First update.
The technical chapter is a bit slow, I try to speed up and continue!!!!!!!!!!!!!!!!!!!!!!!!!
Give yourself a little agitation!!!!!!!!!
Chapter completed!