The last thirty meters are the most intense duel.

The two will meet here.

Su Shen's speed advantage will be caught up.

There will be a fierce confrontation between two people.

There were loud shouts around.

The two began the last 30 meters of hedging.

Bang bang bang bang bang bang bang.

Bang bang bang bang bang bang bang.

The mechanism of force exerting the hip muscles during running!

During the 100-meter running cycle, the rear-pedal stage is a critical period for the hip muscles to exert force.

Su Shen should enter the rear pedal.

The gluteus maximus contracts rapidly and vigorously.

The hip joint is used as the axis to generate a stretching moment.

Just like a powerful spring pushes the thigh backwards, causing the human body's center of gravity to move forward and upwards quickly.

Bolt stabilizes the pelvis and hip joints through the gluteus medius and gluteus minimus.

Su Shen was pushing the ground with his legs in support.

The gluteal medius and gluteal minimus continue to fine-tune.

Prevent the pelvis from tilting to the non-supporting leg side to ensure that the force of the pedal is transmitted along the direction of the body's advancement.

It is transformed to the forward horizontal force to maximize the degree to push the body forward at a high speed.

Bolt increases the power of the ground and directly increases the horizontal force!

Bang bang bang bang bang bang bang.

Bang bang bang bang bang bang bang.

Seventy meters.

Bolt's muscle cross-sectional area and strength output increase.

After long-term special training this year, Bolt's hip muscle cross-sectional area has increased, muscle fibers have thickened, and the number of motor units that can be recruited when muscle contracts.

According to the principle of force decomposition, when the direction of pushing is constant, the greater the force of pushing the ground, the greater the horizontal component force.

For example, when the athlete's ground-pushing force increases from [number 1] to [number 2], the horizontal component may increase from [number 3] to [number 4], directly helping to accelerate the sprint in the last thirty meters.

Someone is lying.

This year he.

A tough group.

Su Shen is no exception.

Muscle contraction speed and explosive power.

The proportion of fast muscle fibers in the buttocks muscles is high, and this type of fiber has the characteristics of fast contraction and strong explosive power...

In the last thirty meters sprint stage.

Strengthen the nervous system and quickly recruit a large number of fast muscle fibers.

The hip muscles such as the gluteus maximus contract at extremely high speed.

A powerful explosive force is generated in a very short time.

Maintain your ultimate speed.

This explosive force acts on the ground, and the reaction force given by the ground quickly pushes the body forward, greatly enhancing the horizontal component force.

Allow Su Shen to achieve a speed breakthrough in the sprint stage.

Seventy-five meters.

Bang bang bang bang bang bang bang.

Bang bang bang bang bang bang bang.

Bolt began to stabilize the pelvic force and transmit power.

During the last thirty meters of high-speed running, the body is prone to deforming posture due to fatigue, but the gluteus medius and gluteus minimus can stabilize the pelvis.

Then when the pelvis is maintained at the correct forward angle.

The direction of force of the leg muscles is more reasonable.

The force of the ground can be directly and efficiently transmitted to the longitudinal axis of the body.

On the contrary, if the pelvis is too forward or backward, it will cause partial dispersion of the force of the ground to be turned into invalid vertical components or other directional components, resulting in waste of energy.

Bolt made here...

Much better than last year.

Significantly improved.

Mills' training helped his stable pelvis provide a stable platform for his hips and lower limbs to exert force.

Ensure that strength is maximized to forward horizontal components this season.

It's indeed.

Better.

It's indeed hard work.

Famous reputation.

Su Shen felt a huge pressure.

but……

He only has excitement.

No fear.

because.

What he wants.

That's it.

Su Shen Core Lock.

Reduce body shaking and energy loss.

When running, the body shaking left and right will consume a lot of energy and reduce the effectiveness of horizontal component force.

Even at their level, there will be shaking.

It's just a matter of size.

The smaller.

The more energy you can save.

Not just the core.

Su Shen is now textbook operation for hip muscles.

Use the gluteus medius and gluteus minimus to exert force through continuous adjustment.

To maintain the body's balance between the sagittal and coronal planes.

Used to reduce unnecessary lateral displacement.

When the high-speed movement steps land on the ground, the gluteus medius contracts in time to offset the tendency of body roll caused by leg movements.

Keep your body moving in a straight line.

Let more energy be used for acceleration in the horizontal direction.

Improve the horizontal component of the sprint stage.

This is Su Shen’s current solution to the butt.

Eighty meters.

Bolt continues to "speed up".

At least, outsiders seem to do so.

Everyone is slowing down, but he slows down even slower.

Not just...

Is it an illusion of "speeding up"?

Bolt fast muscle fibers lead the sprint and exert force.

His hip muscles have a higher proportion of fast muscle fibers (type II fibers).

According to the subdivision, it can be divided into type IIa and type IIb.

Among them, the IIb fast muscle fibers contract extremely fast and have strong explosive power. In a high-intensity sprint of 100 meters, in short-term exercise, the IIb fast muscle fibers are first recruited in large quantities.
To be continued...