“Taking a 100m sprint race as an example, lighter athletes may consume 5%-10% less energy in the competition than heavier athletes, which may become a key factor in determining the outcome in fierce competition.”

"Fourth, improve energy utilization efficiency. After losing weight, the body's energy utilization efficiency will also be improved. The body does not need to spend too much energy to move heavier parts of the body, but can concentrate more energy to push the body forward and maintain high-speed running. This allows athletes to make more effective use of their limited energy reserves and perform at their best during the competition."

"Fifth, from biomechanical analysis, moment of inertia is a physical quantity that describes the rotational inertia of an object about the axis. For sprinters, the mass distribution of the upper body will affect the overall moment of inertia. When the athlete reduces the weight of the upper body, the moment of inertia of the body will decrease. According to the formula for moment of inertia, the moment of inertia is represented, the moment of inertia is represented, the distance to the axis of rotation. The decrease in mass will directly lead to the reduction of the moment of inertia, that is, it can also reduce the moment of inertia."

"For example, the initial mass of my upper body is, the distance from the center of gravity to the longitudinal axis of the body is, and the moment of inertia is. By weight loss, the mass of the upper body is reduced. At this time, the new moment of inertia is significantly smaller than. The smaller moment of inertia makes it easier for athletes to change their body posture and direction during running, improve the flexibility and coordination of movements, thereby helping to increase speed."

"The sixth reduces the burden of ground reaction force. During the sprint, the athlete's feet will produce ground reaction force when they come into contact with the ground. According to Newton's third law, the magnitude of this force is equal to the athlete's force on the ground. The larger the weight, the greater the ground reaction force, which brings greater pressure on the athlete's muscles, bones and joints."

"According to relevant research in our laboratory, the ground reaction force will increase by about 10N for every kilogram of body weight. If a sprinter successfully loses 5 kg of upper body weight before the competition, the ground reaction force suffered by each step will be reduced by about 50N during the running process. This not only reduces the burden on muscles and joints, reduces the risk of injury, but also allows athletes to accelerate and maintain high speed more easily."

This chapter is not over, please click on the next page to continue reading! "Seventh, the power-weight ratio can also be improved from the perspective of energy metabolism. The power-weight ratio is an important indicator to measure the physical fitness level of an athlete. It represents the power output per unit weight. In sprinting, the higher the power-weight ratio, the more energy the athlete can output per unit time and the faster the speed."

"Power weight ratio = power ÷ weight. If a sprinter's maximum power output is P and the initial weight is m₁, the initial power weight ratio is P/m₁. By losing weight, the weight becomes m₂(m₂..."

Randy:...

Are you playing with me?

Say you have a rough study.

As a result, you gave me such a detailed analysis report.

"Wait, why haven't I heard what you said before?"

Randy even wonders if she is a master-level track and field coach.

"It's normal that I haven't heard it before, Huntington." Su Shen's words were filled with a faint confidence: "You'll just have to hear it now."

"And I have a premonition that this theory will soon become popular in the global sprinting industry in the next 10 years."

"I've only talked about some of it here, and there are many things like optimizing the swing arm, enhancing leg bursts, optimizing energy reserves, reducing inertia, etc." Su Shin said: "These are all advantages."

"I doubt that so many advantages are a complete set of theories. I need time to absorb and digest them. Print these things for me, Su." Randy felt that after coming to Ersha Island, she was not a coach, and sometimes she was more like coming to study and study.

That's right, it's further study and learning.

He felt that he could learn something new every winter training.

All can improve yourself.

The key is these things.

I haven't learned it outside yet.

This unique feeling.

It made his desire for knowledge, even when he was old, he was still particularly high.

"Of course the premise of all this."

"It all depends on the fact that you have a strong muscle mass foundation, otherwise you don't even have enough absorption, so you don't have to talk about this issue. So this solution was originally intended for professional athletes who have been mature and trained for many years."

The meaning of Su Shen's words is-

If your muscle mass does not meet the standard.

You shouldn't learn this.

Don't use this as an excuse.

Be honest and gain muscle and keep meat honestly.

Only when your professional ability reaches this level can you be qualified to say this.

“And it also depends on the fact that I lost non-special muscles rather than the useful parts.”

"This requires precise testing before starting."

"Otherwise, the muscles that I finally trained are gone, and that would be a huge loss."

"Then how to judge and define this? There is no precedent or experience." Randy just finished speaking and saw Su Shen's relaxed expression, and said, "Okay, it seems I'm asking for nothing."

"You must have been ready before you said that."

"Of course." Su Shen nodded. He had his own muscle analysis in his previous life, and the analysis instruments for muscle biomechanics were also built in advance.

Just for the present.

At a younger age.

It can be optimized.

It wasn't like the previous life that I waited until Tokyo, which was almost 32, before I started to get involved in this matter.

"Then how much are you going to lose? How much are you keep?" Randy asked.

"It depends on the situation, and the preliminary view is 85kg, depending on the situation."

"If 85kg, then the triple leg strength does not require 270kg..."

Randy just finished speaking, but Su Shen said, "It still costs 270kg."

"This is only 3.17 times."

“My goal is to increase to around 3.2.”

"It's better to break 3.2 times."

Randy listened and looked at the young man who had just won the 100-meter Olympic record and the first 100-meter gold medal in Asia.

It just feels like he is.

That young vitality.

Fierce.
Chapter completed!