richest star

Chapter 200 Exercise Muscles
The more Qin Xueyang listened, the more confused she became. Listening to Lu Kai's talk about fast shrinking white muscles, her back door suddenly became very tense. In her opinion, there should be fast shrinking white muscles, right?
Seeing that Qin Xueyang was stupefied, Lu Kai told her with a smile: "You may not understand these things, but Master Pao heard that he started exercising a long time ago, so he should have some understanding of the muscle classification of the human body."

Zhang Qiyang said truthfully: "I definitely understand something, but I don't understand as much as professional athletes like you."

Lu Kai chatted: "In fact, these are easy to understand. The muscles of the human body movement system are basically striated muscles, and most of them are attached to bones, so they are called skeletal muscles. According to the type of skeletal muscles, they can be divided into slow contraction and red muscles. muscle, fast-twitch red muscle, and fast-twitch white muscle.”

Qin Xueyang touched the ice gourd and said, "It's so complicated."

Lu Kai said: "It's not complicated. It's easy to understand. Remember, red muscle belongs to the endurance type, and white muscle belongs to the explosive type. White muscle fibers belong to the motor motor unit, which is responsible for voluntary movement, also known as Fast motor units, such as fast explosive exercises, are mainly exercised by white muscle fibers. The cross-section of white muscle fibers is relatively thick, so the muscles are easy to develop and thick. Look at the Jiao Alan who just passed by, her thighs are long and strong , looks like a boy, right? It’s because the white muscle fibers in her thigh muscles are very developed. This level of development is rare among female athletes. After training in the future, she is likely to create record-breaking performances. This is the legendary gifted athlete."

Lu Kai then said about Zhang Qiyang: "You are also the same, I think if you do a muscle group test, you will definitely find out that the proportion of white muscle is high. People with super explosive power have high white muscle. White muscle fibers contain more myofibrils. There will be less myoglobin and cytochrome. During exercise, the contraction speed is fast and powerful, and the explosive power is extremely strong, but the endurance is poor. I don’t know if you have this characteristic. You are good at sprinting, but you should not be too good at long-distance running Fine?"

Zhang Qiyang is not easy to answer Lu Kai, because he thinks his body is more durable than explosive. According to the previous experience of the original owner, his long-distance running results are much better than sprinting. He has been participating with her mother since he was a teenager. It's the marathon, and I run the whole course every time, and my endurance is amazing.

It is only because Zhang Qiyang's brain has become extremely developed now, and his ability to control his muscles has reached a height that ordinary people cannot match, so he has shown amazing explosive power.But if you look at the muscle type of his physical body, the red muscle should be bigger than the white muscle.

Lu Kai continued to explain to the two: "Red muscle fibers belong to tension motor neurons, which are responsible for maintaining tension postures, and are also called slow motor units. Red muscle fibers contain more myoglobin and cytochrome, and less myofibrils. During exercise, the contraction of red muscle fibers is slow, and the explosive power is not strong, but it can last for a long time."

Lu Kai concluded: "Red muscle and white muscle are distinguished by the speed of muscle contraction or the density of microvessels, which is a relatively early classification method. According to the activity and function of skeletal muscle, the type of skeletal muscle fiber can also be divided into slow-twitch muscle fibers. Muscles and fast-twitch muscles. Although slow-twitch muscles belong to red muscles, fast-twitch muscles can be divided into red muscles and white muscles. I won’t tell you about those that are too thin. Anyway, I think your white muscles must be Well developed, absolutely gifted sprinter."

Qin Xueyang asked: "Is the classification of these muscle fibers innate? Athletes like you are born with more white muscle fibers?"

Lu Kai said: "There must be an innate influence, but acquired training is also essential. If you don't practice hard, no matter how good an athlete is, he will eventually become an ordinary person in terms of physical function."

Zhang Qiyang pointed at Qin Xueyang with a smile, and asked Lu Kai: "Do you think she has more white muscles or red muscles?"

Lu Kai knew that the relationship between Qin Xueyang and Zhang Qiyang was unusual, so he naturally didn't want to offend Qin Xueyang, and said with a smile: "It's hard to say. Generally, people who sit in an office have three types of slow-twitch red muscles, fast-twitch red muscles, and fast-twitch white muscles. The proportion of skeletal muscle may account for about 50%, 25% and 25%, and the proportion of slow-twitch red muscle must be the highest."

Qin Xueyang was puzzled and said, "Why?"

Lu Kaidao: "Slow-twitch red muscle has the highest aerobic capacity and fatigue resistance, but its glycolysis (anaerobic) capacity is poor, its contraction speed is slow, and its motor unit strength is low. It is a low-intensity, long-term exercise muscle type. Most of the work done by white-collar workers is this kind of low-intensity, but long-term exercise work.

Fast-twitch white muscle has the highest glycolysis (anaerobic) capacity and motor unit muscle strength, but is poor in aerobic capacity, contraction speed, and fatigue resistance, and belongs to the high-intensity, short-term exercise muscle type.Fast-twitch red muscles offer the best of both muscle types.

Generally speaking, when human skeletal muscles exert force, if the force is relatively mild, only the motor units of slow-twitch red muscles participate in the contraction and generate force; The motor units of the white contractile muscles are involved in the contraction force respectively.Therefore, when human muscles are in a state of light exertion, due to the muscle characteristics of slow-twitch red muscles, the activity time of skeletal muscles is increased; Muscles have to shorten exercise time due to fatigue.

To sum up, if a person has a very high proportion of fast-twitch white muscle in his skeletal muscles, then the person's short-term explosive exercise ability will be excellent; if the skeletal muscles have more than 90% slow-twitch muscle If you have red muscles, then this person is likely to be a frequent champion of the marathon. "

Qin Xueyang probably understood everything, and boasted: "It seems that I have red muscles all over my body. Although I don't have explosive power, my endurance is very good. If I get rid of all the fat in my body, I will win a few marathon champions." Maybe."

Zhang Qiyang hit her: "Don't be a fart, you can lose all the fat in your body, you don't need to win the marathon, you can directly become the champion of weight loss."

Lu Kai said casually: "Xiao Qin, if you really want to lose weight, I can introduce you to a reliable fitness trainer. I have a junior who works as a fitness trainer on Dawang Road. His specialty is helping people exercise and lose weight. A sports expert in the field. If you are interested, I can help you contact him."

Qin Xueyang hesitated and said: "This... just forget it. I haven't eaten enough yet. When I have eaten all the delicacies in the world, I will seriously consider losing weight."

Zhang Qiyang continued to attack her: "You don't even think about losing weight. I'll leave it to you. You won't be able to lose weight in your life. Just live your life with a big heart and a fat body."

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(End of this chapter)