Chen Cao watched the two out-of-body incarnations of the old turtle finish an episode of double reed play.

Of course, most of my mind is still on cultivation.

Chen Cao noticed that his muscles felt sore.

Chen Cao had some doubts in his heart, why did he have soreness so quickly?

You must know that you can use both the skills of Ten Thousand Laws to One and Dark Assimilation at the same time, and you will not necessarily get tired after fighting for three hours with all your might.

But now I've only been boxing for half an hour, and I'm actually feeling tired.

It seems that in this way of the black dragon, the muscles are stimulated, which will increase the fatigue of the muscles.

In other words, this is actually a way to fight beyond the limit.

In a short period of time, of course, the combat effectiveness can be comprehensively improved.

There has been a qualitative leap in strength and speed, but it has also increased the burden on the muscles.

After the old turtle finished acting, he was finally serious.

"You just seemed a little special, not like normal. ”

"I found a way to stimulate my muscles and improve my power for a short period of time, but only for half an hour at most. ”

"This is not in your training plan, although this technique can burst out in a short period of time, it is also harmful to the body, and all sects and factions in your human race have similar methods, but after most people use it, they are left with an injury in their old age, all because of the overload of the body. ”

"When you use this kind of snort... When the medicine method is used, it means that it has reached the time when it must be used, and the decision at this time is actually no longer in your hands. Chen Cao said.

Chen Cao analyzed it from a medical perspective in his heart.

Longwei stimulates muscle contraction, resulting in a powerful explosive force in a short period of time.

The high explosive power brought about by muscle contraction also increases the release of lactic acid.

However, the release of lactic acid is largely due to the inability to adapt to this high-intensity muscle exercise.

If you can adapt to this high-intensity muscle movement, then you may be able to use this explosive power.

Of course, there is also the possibility of fibrous tissue damage.

This possibility is relatively small, and Chen Cao is still relatively confident in his physical fitness.

Muscle fiber tissue is one of the strongest tissues in the human body, covering the entire body.

This is used to protect the human body itself, even fat people have muscle fibers, but they are covered under the fat and cortex.

Chen Cao's heart moved, the golden key can continue to evolve himself.

However, in the past, it was all about the evolution of the external environment, so as to adapt to the environment.

So can you activate the evolution of the golden key through this kind of exercise and adapt yourself to the outbreak?

Seeing the change in Chen Cao's eyes, the old turtle asked, "Have you thought of a way?"

"Try again. Chen Cao said.

As he spoke, Chen Cao used the stimulation method again.

"You don't seem to be listening to me. The old turtle said meaningfully.

"I have my own ideas. Chen Cao responded, and in an instant, Chen Cao threw out hundreds of punches.

Using the muscle stimulation method, Chen Cao can feel the rhythm of each muscle more clearly, as well as the changes.

Muscles are not actually lumpy, but if you look through a microscope, you can see that muscles are made up of thin fiber lines.

Chen Cao's perception is not only external, but also has a better effect internally.

This is called inward-looking, and this method is not only found in Taoism, but does not even belong to any single sect or religion.

As long as you reach a certain level of cultivation, you can do it.

Chen Cao can even perceive every fibrous tissue, and even control and stimulate each fibrous tissue.

If Chen Cao needs it, Chen Cao can use the muscle pressure to make the muscle expand.

Thus becoming a Mr. Bodybuilder.

But that's stupid, big muscles don't make for more powerful combat power.

Even Chen Cao still has a kind of appreciation for that kind of bodybuilder, and he has no sense of beauty.

Chen Cao also doesn't know what the significance of those who have relied on steroids and hormones for a long time to maintain muscle.

The end result of those bodybuilders is half the life expectancy of a normal person.

It is possible to suffer from various diseases at the age of thirty or forty, and the prevalence is several times higher than that of normal people.

It looks very strong, but in fact, the immune system and body functions have long since collapsed.

Gaia, for example, has been doing muscle contraction exercises these days.

Because the muscles are too big, it has affected her combat effectiveness.

Of course, Gaiana is due to the fact that he is tall and has been exercising for a long time and at high intensity.

So as long as she controls her diet and does muscle-losing exercises at the same time, she can still lose weight easily.

Chen Cao also realized this, and the key to improving his combat effectiveness now lies in his muscles.

This is a problem that Chen Cao has always ignored in the past.

Chen Cao has been improving his physical fitness and magic in the past.

As long as it is successful, the way to improve is of course very obvious.

But they didn't dig deep into their potential.

Chen Cao constantly adjusts the muscle structure to arrange and distribute it in an optimal way.

Coupled with a hint of dragon power, release it......

Suddenly, the old turtle raised his eyebrows and looked at Chen Cao fiercely.

Chen Cao felt the change in his body.

In an instant, hundreds of fist shadows appeared in front of the old turtle's incarnation.

Boom Boom Boom –

It's changed, everything has changed.

At a distance of more than two meters, Chen Cao actually blasted out hundreds of huge fist shadows.

The shadow of the fist fell on the incarnation outside the old turtle's body, and it did not bring him any trauma.

However, Chen Cao could feel the qualitative change in his attack power.

And the whole process is under Chen Cao's control.

Chen Cao is a little bit of adjustment, a little bit of optimization, combined with muscle stimulation, so as to achieve this effect.

In the past, no matter how much force Chen Cao used, he couldn't do it to this extent.

There's no magic in it.

Just relying on strength and speed, and bringing a trace of dragon power, to bring this kind of attack power in the air.

That's right, that's how it feels!

Chen Cao didn't stop, and the fist shadow was constantly being released.

"The most effective attack distance is about five meters, beyond five meters, the power of your fist shadow will decrease, less than five meters, the power of the fist shadow will not reach the extreme. The incarnation outside the old turtle said as he stepped back, retreating to about five meters.

"How about a real fight?" asked the old turtle.

Chen Cao was stunned for a moment, actual combat?

This is something Chen Cao never thought of.

Even if it's just an out-of-body incarnation.

It doesn't make any sense at all, right?

If you want to fight, it is also a real battle with an opponent of the same level or slightly higher, what is the point of fighting with the old turtle?

"Wait......"

"Be careful, I'm coming!"

Chen Cao saw the old turtle swinging his fist, and it was the same fist shadow as himself.

Chen Cao didn't dare to be careless, and swung hundreds of fists in an instant.

Boom –

Chen Cao lost consciousness.