As soon as Chen Qiang entered the training space, he saw a new message appearing above his head.

The 100-meter sprint race will be within 12 seconds and unlock new tasks.

New mission, complete a 100-meter sprint on the track. Mission time, 12 seconds, mission reward, 10 points.

"There is another new task to unlock. The last time I unlocked the marathon was because the cumulative distance of running in the real world reached 42 kilometers, and the unlocking condition was for 12 seconds to run in the 100-meter race. As of this, if I ran in the 12 seconds in the Fudan High School competition, I should have unlocked this new task at that time."

"According to this unlocking condition, running 12 seconds in the competition can unlock a new task. Then if I run 11 seconds in the competition, or even within 10 seconds, I should unlock a new task! The key point is to achieve corresponding results in the competition. Daily practice seems to not count."

"The newly unlocked task is to complete a 100-meter sprint on the track, and it does not say whether the race is required. Then you can complete this task in daily practice, but it is necessary to run on the track, and running elsewhere should not work. Also, the completion time is 12 seconds, which means I need to complete a 100-meter sprint within 12 seconds, so that I can be considered completing the task."

"In terms of the difficulty of the task, this new task is more difficult than the previous two long-distance running tasks. The first task is to run 10,000 meters, without time limit, even a three-year-old child can complete it, just spend a little more time. The second task runs a 42-kilometer marathon, the task time is 24 hours, and you can rest during this period. It is not a problem for normal people to run 42 kilometers in 24 hours."

"But this 100-meter run in 12 seconds is something that athletes can do. Often those who have not undergone sports training cannot run in 100-meters in 12 seconds. Although this reward is only 10 points, it is quite worthwhile to earn 10 points in 12 seconds."

"In terms of calculation, I only need to complete such tasks fifty times a day to get 500 points, which is equivalent to completing the marathon task. For professional sprinters, I don't know how many times I have to run 100 meters every day, and just 50 100 meters sprint training, it's just drizzle."

"This new task earns points faster, but I don't know what the cooldown time of this new task is. If there is only one or two minutes of cooling time, I can get at least more than 100 points per hour. When I have the chance, I have to find a stadium to try it."

Chen Qiang already has some understanding of this training space. In just one piece of information to unlock new tasks, he analyzed so many things.

...

Regardless of the new task that had just been unlocked, Chen Qiang entered the track and field field in the training space, then hired a senior track and field coach to start a day of training.

Today's training theme is the front-swinging technique of the thigh in sprinting.

Before, Chen Qiang mainly used the rear pedal technology during the runway. This technology has a very good effect on the cinder track and is also the core of traditional sprinting technology.

The human body generates the forward momentum through the reaction force of the rear kick. The greater the force of the rear kick, the greater the reaction force and acceleration generated, thus the faster the speed.

In this era, the technology of running and pedaling on the way is still a technology that has not been developed by athletes. With this technology, Chen Qiang is enough to become a very excellent sprinter.

But Chen Qiang felt that the technique of leaning closely to the rear pedal was not enough, because at the National Games, he was not facing a 12-second player like Cui Linhai, but a world-class sprinter like Liu Changchun.

Chen Qiang had long learned from the newspaper that Liu Changchun could now run to 10.8 seconds, and this is not his peak result. In the future, he will break the national record with a time of 10.7 seconds.

In other words, Liu Changchun is now at the peak of his career.

Chen Qiang's real strength is that he has just run within 11 seconds, and there is still a certain gap compared to Liu Changchun.

There are only two weeks left before the start of the National Games. If you strengthen your body in such a short time, the effect will be very little, so you can only find a technical solution.

So Chen Qiang decided to increase technical training, and all he could think of was the thigh forward swing technique of sprinting.

Chen Qiang, in his previous life, once went to the Provincial Youth Sports School for technical guidance. One of the items was to teach sprinters to use the front swing technique. According to the test, after the athletes use the front swing technique, they can improve the average score of 0.8 seconds.

0.8 seconds is the effect of a teenage athlete. For adults, the effect may not be so obvious. If you give it a compromise, it is always possible to increase by 0.4 seconds in 100 meters.

After 2000, more and more front-swinging technology for the thighs was used, especially the rise of Bolt, which made athletes realize that front-swinging technology is so important. More and more people began to study the front-swinging technology of sprinting, and more and more athletes also began to use this technology in a refined manner.

For example, Su Bingtian's improvement in performance has a lot to do with the development of forward-swinging technology. It is impossible to deny that yellow people are not as powerful as black people in terms of physical explosive power, but in terms of physical coordination, yellow people have advantages. Su Bingtian made up for the physical gap with black people through his superb sprinting skills.

According to research, the support time of one leg of an excellent athlete only accounts for 22.1% of the re-step time, while the forward swing time of the legs accounts for 77.9%. In this regard, during the sprint, the legs are mostly swinging in the forward swing. Strengthening the display technology means that the efficiency is improved during this 77.9% time period, and the speed will naturally increase.

After all, sprinting is a racing sport, and it compares speed rather than strength. Strength is only an indirect factor affecting sprinting performance. Overemphasizing the power of the rear pedal will have an adverse impact on increasing speed.

Strengthening the swing of the hip joint as the axis is the key to improving the running speed. After all, the various organs of the hip are the engines for human body to run. The so-called swing of the hip joint as the axis refers to the forward swing of the thigh.

The thigh forward swing technique is much more difficult than running and stomping on the way.

It is easier to master the technical skills of rear pedals. There are not many details. As long as the legs are sufficient, even if the technology of rear pedals is slightly inferior, it will perform very quickly.

After all, the back pedal is a technology that focuses on strength. One force reduces ten times, just like hitting a wall with a sled hammer. No matter what posture or angle, it is just a matter of doing it. If you have enough strength, you can smash the wall. Therefore, in the post-pedal era of sprinting, black sprinters will be so strong.

The thigh forward swing technique is a sprinting technique that emphasizes details. As an athlete, you may easily learn the forward swing technique, but the technical details need to be corrected little by little, which also involves the adjustment of the pace and stride. Only through continuous adjustment and improvement of details can you gradually improve your own performance.

It's like a carving master is completing a jade carving work. It's definitely not possible to swing a sledgehammer. Even if the prototype of the work comes out, it still needs to be carefully crafted little by little, and even a little flaw must be corrected.

Therefore, the front-swinging technique is a meticulous job, which not only tests the athlete's understanding, but also tests the coach's coaching ability.

Chen Qiang has a rich theoretical knowledge of the previous technology. He has read too many papers on pre-stage technology, so it is no problem to ask him to teach the coach. However, during practical training, Chen Qiang is not as good as a senior track and field coach.

After all, theory and practice are two different things.

...

After finishing the sprint training, Chen Qiang went to the physical training center in the space again.

Although the front thigh is a very detailed technology, it also requires a certain amount of physical fitness to realize this technology.

For example, if the hip muscles are not strong enough, the muscle centrifugal and centripetal contraction ability will be affected. At this time, during the athlete's running, the heel position of the supporting foot will touch the ground, the time for the foot to support the ground will be extended, and the speed of the ankle extension will be reduced when the athlete is running.

For example, the fast contraction of the thigh-femur muscle group is weak. During the running, the speed of swinging the forward swing of the legs is closely related to the rapid contraction of the hip flexor muscle group and the back of the thigh muscle group. The entire leg swinging action is actually to drive the forward swing of the thigh with the force of the hip flexor muscle group. During the forward swing of the thigh, the calf should also actively move closer to the thigh, and the entire knee joint should maintain a small folding angle. All these technical actions require the strength of the back of the thigh.

The strength of the thigh-hilar muscle group is a major disadvantage of yellow athletes. Even in later generations, Chinese athletes are relatively poor in terms of strength of the thigh-hilar muscle group, which makes the legs loosely folded and the forward swing speed slow when swinging the legs during running. The strength of the thigh-hilar muscle group of black athletes is sufficient, and their thigh swing radius is larger and the forward swing speed is faster.

These are the key points of Chen Qiang's physical training.

If it is in reality, it may take half a year of scientific training to achieve certain training results in these aspects. However, Chen Qiang has room for training and has a training bonus of ten times the time. For him, two weeks in reality are enough to achieve obvious training results.

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Chapter completed!