This is what Zhang Peimeng saw when he saw the performance of work and rest.

Not surprised by the reason.

As his opponent for so many years.

Whether it is strength, his ability, or his efforts and enterprising spirit, it has been recognized by Zhang Peimeng.

So he did not find it strange to make breakthroughs in work and rest.

Instead, it has an expected meaning.

"Pai Meng, let everyone see what you do."

Hu Kai stood beside him.

It also looked relaxed and mixed with expectations.

Bang—

Gunshots rang out.

When the gun was fired, Zhang Pei started as fierce as an arrow leaving the string.

The first step is that the gluteus maximus is started like a precision engine, driving the back and outer muscles of the thigh to cooperate, like starting a mysterious energy chain hidden in the body.

This step.

The hip, knee and ankle joints are linked under the command of the gluteus maximus, and the generated force is transmitted along a unique arc trajectory, just like the energy orbit at the moment when the spacecraft is ignited. This is the first handshake between science and the three joints. The moment the feet come into contact with the ground, the buffering is like the force of a master's fight, and the gluteus maximus is cleverly regulated.

Step 2.

The contraction of the gluteus maximus is strengthened, like tightening the power spring of a supercar. The muscle contraction force forms a more explosive arc through complex cooperation of multiple joints. This is not an ordinary arc, but a prelude to the potential explosion of potential forces that break through the limits of physics. Each trace of muscle fiber seems to be born for this unique arc, and the legs push the ground backwards and start the journey of speed.

Step 3.

The gluteus maximus continues to dominate the rhythm of the body, and its coordination with Zhang Peimeng's lower limb joints has reached a new level. Driven by the gluteus maximus, the hip joint completes exquisite flexion and extension, abduction and adduction and rotation combinations. The flexion and extension of the knee joint are perfectly coordinated, converting the impact force into propulsion force.

Step 4.

At this time, Zhang Peimeng's body was like a high-speed combat machine, and the gluteus maximus showed amazing stable power during the single-leg support stage. It was like a solid fortress, preventing the pelvis from shaking at all, and building a stable foundation for the arc-shaped ground of the legs. This is the core code of body balance.

The golden four steps end.

Four points and one line support.

Step 5.

The collaboration between the gluteus maximus and the core muscles enters a white-hot stage. When the center of gravity of the body is subtly shifted, the gluteus maximus quickly adjusts the contraction force and direction, just like an intelligent navigation system corrects the route in real time. It cooperates with the waist and abdominal muscles to rebalance the body posture, making the arc-shaped ground-shaping movements as accurate as flowing water. Every contact between the feet and the ground is like injecting lightning into the earth.

The connection between Zhang Peimeng after four steps is more perfect than last year.

Step 6.

In this critical step, the body's energy transmission reaches a small climax under the dominance of the gluteus maximus. The muscle contracts and relaxes, like the energy reaction inside the muscle nucleus, converting the elastic potential energy stored in the body into powerful kinetic energy. Driven by the gluteus maximus, the legs are spreading the ground with an aggressive arc trajectory, like the best track for missile launch. This step pushes Zhang Pei to a higher speed level.

Step 7.

The final step is to complete the 10-meter sprint.

The gluteus maximus burst out with force like a supernova explosion. Under its leadership, the entire lower limb forms a perfect preparatory arc-shaped ground-shaping force, which is a kind of sports force aesthetic that is difficult to appear without scientific training. Every joint and every muscle are like precision parts carefully created for this moment, and the power generated by the joint work is transmitted to the ground through the stomping.

Completed ten meters.

After years of crazy training of gluteus maximus, I finally had a deeper effect.

Start to speed up.

Twenty meters.

In this 10-meter range, Zhang Peimeng maintained a high-speed running state. The gluteus maximus continued to contract vigorously, driving the leg muscles to work together. From the perspective of muscle force, the force generated by its contraction was transmitted orderly through the hip joint, knee joint and ankle joint, achieving a stable and efficient arc-shaped ground-pull movement. The hip joint was moderately flexed and extended under the action of the gluteus maximus, and combined with the cushioning and extension of the knee joint, so that the feet could slid the ground at a suitable angle and force.

Thirty meters.

At this time, Zhang Peimeng's running rhythm is still steady. The contraction of the gluteus maximus follows the principles of exercise physiology and accurately regulates the output of strength. During the arc-shaped leg slitting, the abduction and adduction of the hip joint is closely coordinated with the rotation movement and the flexion and extension of the knee joint and the ankle joint. This kind of coordinated movement of multiple joints can effectively utilize muscle strength and advance the center of gravity of the body forward steadily, ensuring that every step can obtain the maximum forward momentum in accordance with human mechanics.

The acceleration must be matched with the mechanical model.

This is also an aspect of science.

Unlike before, I just rely on subjective experience to work behind closed doors and practice hard.

It does not consider whether it conforms to its own biomechanical model at all.

If you have good luck, it will be consistent.

Bad luck.

Just practice is useless.

The acceleration run ends.

Zhang Peimeng began to look up gradually.

In order to make his buttocks and curved ground more integrated, Zhang Peimeng made these changes.

The first is the change in head posture.

The head is gradually raised, and this action is controlled by the neck muscles in an orderly manner. The neck extensor muscle contracts moderately, driving the head to lift, so that the line of sight extends forward and upward.

This adjustment not only helps athletes observe the track situation, but more importantly, it has an impact on the overall balance of the body. During this process, the physiological bend of the spine is also fine-tuned accordingly to adapt to the new body posture, ensuring the balance of force lines in the vertical direction of each part of the body, and providing a stable support structure for subsequent movements.

The function adjustment of the gluteus maximus is key at this stage.

From the starting acceleration phase, the gluteus maxillary contraction pattern begins to change adaptively.

During the starting stage, the gluteus maximus achieves rapid ground rush with a greater force output.

When you run while raising your head, the contraction force and frequency are accurately adjusted according to the change in the center of gravity of the body.

As the body is lifted, the force generated by the contraction of the gluteus maximus is transmitted to the hip joint through the tendon, triggering the stretching and abduction movement of the hip joint. This series of movements is carried out under the precise regulation of the nervous system. The nerve impulse accurately controls the order and intensity of the muscle fiber contraction of the gluteus maximus to ensure the smoothness and stability of hip joint movement.

This kind of muscle-joint synergistic movement is in line with the principles of human movement biomechanics and can better and more effectively utilize muscle strength to promote the body forward.

The adjustment of leg movements has also changed.

More refined.

The movement changes of the knee joint as soon as it hits the ground are particularly obvious.

As the body posture changes, the bend angle and buffering time of the knee joint are reduced, which is to transmit ground reaction forces to the center of gravity more quickly and achieve more efficient energy conversion.

During the entire process, the flexion and extension of the knee joint is closely coordinated with the movements of the gluteus maximus and hip joints, forming a coordinated motor chain.

At the same time, the ankle joint maintains a high degree of stability and flexibility during the curved leg slitting.

When the foot lands, the ankle joint buffers the impact force through a series of complex muscle contractions and joint activities, and accurately transmits the force to the ground during the push-up stage.

The functional realization of this ankle joint depends on the synergistic effect of its surrounding muscles, ligaments and joint structures. They jointly ensure that the ankle joint can adapt to the constantly strengthening hip engine at different stages of movement and provide strong kinetic energy.

At the same time, the core muscles include muscles in the abdomen, waist and other parts, which stabilize the pelvis and spine through isometric contraction and synergistic contraction.

The gluteus maximus and the core muscles form an organic whole through fascial and nerve reflexes. When the center of gravity of the body is shifted due to changes in the movement posture, they can respond quickly, adjust the magnitude and direction of the muscle contraction force, and ensure the stability of the pelvis in the horizontal and vertical directions.

Hukai's words are - providing a stable support platform for effective striking and arc-shaped strapping of legs, so that Zhang Peimeng can enter a stable state of running on the way smoother than before.

Speed ​​up and run.

Forty meters.

The gluteus maximus continues to exert force, and its contraction force is transmitted to the lower limbs through the muscle fascia.

The hip joint flexibly adjusts angles according to the movement posture to provide stable support for leg movement. At the same time, the knee and ankle joints accurately complete the flexion and extension movement under the action of muscle strength.

The arc-shaped ground-stripping trajectory of the legs strictly follows the biomechanical logic of human body movement, so that every step can maintain balance while-

Can provide ground feedback more quickly.

Fifty meters.

When Zhang Peiming's legs are arched, the hip, knee and ankle joint form an organic motor system. The extension and rotation of the hip joint are combined with the reasonable flexion and extension of the knee joint and the stable movement of the ankle joint, so that the body can effectively utilize the ground reaction force during high-speed running, maintaining speed while reducing energy loss.

Then...

It's an explosion at a very fast pace.

Zhang Peimeng's gluteus maximus continues to contract according to the scientific laws of exercise. The force generated by its contraction is transmitted to the muscles' back and lateral muscles through the fascia and tissue between the muscles. This force transmission is orderly and efficient.

It is based on the physiological structure and neural control mechanism of muscles.

It’s not like the experience that you can feel like you want.

Then, when the gluteus maximus contracts, a tension is generated by shortening the muscle fibers to pull the tendon connected to the hip joint. This tension will cause the hip joint to stretch, and at the same time cooperate with a certain degree of external rotation. During this process, the contraction force and rhythm of the gluteus maximus remain stable, adapting to the body's movement speed and posture, laying the foundation for the subsequent arc-shaped ground-cutting movements in the extreme speed zone of the legs.

In the past, the curved ground in Zhang Peimeng was always a bit scattered.

It is also a word that Yang Jian often uses when he explains his competition.

In fact, it does not mean that Zhang Peimeng himself does not want to control the ground-breaking mode at this stage.

It was his physical condition at that time that limited him to do this.

Zhang Peimeng was a product of the athlete system of that era.

Naturally, there are strong traces of athletes of that era and imprints of the times.

The biggest mark of the era.

It's just that his butt is a little...sluggish.

Compared with the domestic athletes behind, the dimensions are not big enough and not plump enough.

If you say sprinters, it would be fine if the rest of the muscle mass does not need to be that big. Just like Su Shen has done a simplification of the related muscles this year...

Excluding muscles that depend on a certain degree of less high dependence, the first thing is to reduce the burden on the body.

Increase your athletic ability in disguise.

but.

This kind of burden reduction.
To be continued...