The establishment of any kind of martial arts has its foundation and theoretical basis, and so does Aikido. Theoretical basis is the core of all actions and techniques. No matter how the movement technique changes, it is the concrete embodiment and application of the basic theory, so today I will take you to learn and study the essentials of technical movements from another angle.
? Accepting the body is one of the most basic and important techniques in Aikido. Beginners of aikido must learn this skill. Personally, Xiao Yi believes that accepting the body is also a very unique part of Aikido, and it is also one of the biggest differences between Aikido and other martial arts. I'm sure you've all seen Xiao Yi's posture, and other disciples even said that Xiao Yi was the best "uke". Today, Xiao Yi will start with her best serve-receiving technique, summarize its theoretical basis and principle through the analysis of serve-receiving action, and then tell everyone how to make her serve-receiving action more in place and more accurate.
First of all, let's understand the following two common problems in life.
1. Why do adults fall more than children?
A: I believe everyone has feelings about this problem in life. A toddler will fall down after a few steps, and then he will stand up and continue walking as if nothing had happened. As an adult, the consequences of falling are often slight, with skin abrasions but bone abrasions. There is only one culprit causing these injuries, and that is human gravity. Children's weight is light, their center of gravity is low and close to the ground, and the falling distance of their center of gravity is short in standing state and falling state, so the gravity is small and the injuries caused can be absorbed by the human body, so it is often difficult for children to cause injuries when they fall. Adults are not only heavy, but also have a high center of gravity from the ground. Once they fall, they will produce great gravity. If they are not well controlled, it will easily cause great harm to human body.
Well, after listening to the above explanation, we should understand two key points. In order to avoid pain and injury, the number of places where the center of gravity drops should be as few as possible, and the speed of the center of gravity drop should be as slow as possible.
Second, why is the wheel round?
A: A circle is a shape with little resistance, and it is easier to obtain less motion resistance than a series of physical shapes such as triangle, square and diamond. At the same time, the circle is also the most stable shape. In the horizontal state, the center of gravity of a circle in high-speed motion is stable at the same height.
Circle is a shape with little resistance, and it is easier to obtain less motion resistance than a series of physical shapes such as triangle, square and diamond. At the same time, the circle is also the most stable shape. In the horizontal state, the center of gravity of a circle in high-speed motion is stable at the same height.
Think about it. When James taught everyone to roll forward, didn't he tell everyone to look at their stomachs, put their hands on the ground in an arc and roll forward? These two action points are to make your body round. If it is done well, it is a human ball. In the process of rolling, your center of gravity will be very stable, and your center of gravity will only drop a little distance, so naturally you won't feel the pain caused by gravity drop. Of course, the pain in static tumbling is often not entirely caused by the decline of the center of gravity, but more likely due to the wrong angle of tumbling, which will cause impact pain to the prominent parts of the scapula, or compressive pain to the fragile parts such as the neck and waist. Angle problems can be corrected by routine training.
Ok, I understand the above two questions, and now I will analyze the basic receiving action of forward roll through specific examples.
The picture above shows the standard body shape that rolls forward from the static preparation state. As can be seen from the picture, there are radians from the hands touching the ground to the arms, shoulders and back, and the shape of the whole person is close to a circle. This action will be involved in the basic training of newcomers. Through several attempts, you can gradually achieve the correct body posture, thus completing the basic forward roll action.
What I want to analyze with you today is not this basic action. I'm sure some old classmates must have seen Xiao Yi's jumping forward roll when he was running forward. That's right. Today, I want to share this action with you. I will explain to you the essentials of tumbling before jumping by illustrating the method and combining the two theories I mentioned above.
? Now I will dedicate the action analysis diagram of several important time points in the process of completing this action to you. Please carefully observe the difference between running forward roll and static forward roll in the previous section.
Note: According to the actual research, the center of gravity is located near the lower abdomen.
? The red dot in the picture marks the center of gravity of four important time slices in the process of completing this action.
From the beginning to the end, when the whole arm landed, we saw that the center of gravity of people decreased, but it was not obvious. This means that in the whole process of falling, the falling distance of gravity is very small, so only a limited force can be generated. This force is not enough to cause huge impact damage to the human body, that is to say, if you complete this action correctly, you will definitely not feel pain, and it is impossible to get injured because a certain part of your body directly hits the ground.
Next, we gradually analyze the stress of each step from the air to the ground.
The state of this picture is just jumping and the body is horizontal. We pay attention to the foot that touches the ground. This foot plays a vital role at this time, because it must produce an upward elastic force. The purpose of this force is to stabilize the center of gravity at the existing height in the future after the foot leaves the ground, thus preventing the natural physical process of the body falling immediately after the foot leaves the ground. In this stable period, you can have enough time to turn around and let the receiver land as soon as possible, so as to enter the state of the next picture.
The center of gravity in this picture drops slightly, and the upward elastic force generated by the footsteps in the above picture can no longer stabilize the center of gravity and prevent it from falling. At this time, body posture plays a key role. The forearm and the back of the head must initially produce a round shape, and the hind foot produces a centrifugal force like the upper left under the catalysis of the round posture due to the initial elasticity and forward inertia. This centrifugal force can continue to slow down the decline of the center of gravity, but it is not stable, so what we have to do at this time is to let. So as to enter the state of the next picture.
In this picture, the whole back of hand and forearm have completely landed. At this time, you can rely on the support force generated by the whole arm after landing to further slow down the decline of the center of gravity. At this time, please pay attention to the full external rotation of your arms and rely on the torsion of your arms to support your body. Never stop, don't touch the ground with your palms. This will sprain your wrist and bend your elbow, causing your center of gravity to drop sharply and your whole body to fall back to the ground. If you practice fully in the static forward roll, your instinctive reaction will prevent you from making such a wrong move, so everyone should pay attention to the practice of basic skills.
Supported by the back of hand and wrist, the body smoothly enters the next stage. As can be seen from the picture, our center of gravity has shifted smoothly to the shoulders and back. At this time, the falling distance of gravity has obviously decreased compared with the initial stage, so we need a larger contact area with the ground to reduce the impact force brought by gravity. In this picture, we can clearly see the palm direction and elbow posture. Thus, we have completed most of the important actions in this series. Next, pay attention to locking your head and staring at your stomach to avoid hitting your neck or head. Let the power transfer through the arm to the shoulder and back.
When you reach the landing position shown on the left, you have completed a perfect posture, rolling forward and landing, at least no part of your body will be injured, you have landed on your back to the maximum area, and all gravity falls will not pose a threat to you. Now pay attention to keeping your forehand as round as possible, just like holding a ball in both hands, because this will play a vital role in getting up and standing directly at last. For getting up and completing the action, you need to practice more, which has little to do with the key points introduced in this article. This article will not continue to discuss the follow-up actions. Please practice more.
? Ok, first of all, we analyzed the implementation process of an advanced receiving action and shared the essentials of the action with you. However, Xiao Yi hopes that everyone can get some enlightenment from the above analysis. Some opinions on the core theoretical basis of reception are about the mystery of the center of gravity. We say that there are too many kinds of movements in Aikido, but the ultimate goal of being recruited is to stabilize our bodies in a safe state. In fact, it is to let our opponents exert their strength on our bodies, and to dissolve each other's strength through the coordinated movement of their own parts, so that their center of gravity can finally reach a stable state, thus achieving the purpose of accommodating themselves. In the face of Qian Qian's absolutely passive attitude, I just want to teach you a method of analysis and understanding. I hope that through this positive way of thinking, you can experience the mystery of passive posture in your own practice, so don't think that the fun of Aikido is just to control and defeat each other. In fact, it is not easy to do a good job of uke and beautiful passive posture.
Ok, I'll give you another material and give you an idea. I hope you can use the above ideas to analyze your next move. hand over
Note: the red dot on the body represents the center of gravity, and the red dot outside the body represents the position of the body (usually the hand) landing buffer point.
? From the above picture, we can see that all the subjects' body postures have the nature of * * *, and their upper body (that is, the part above the center of gravity) is basically vertical to the ground, while the lower body will present various postures due to different technologies, but eventually people will be in an inverted stage.
? From the first three pictures, we can clearly see that uke's outer hand is ready to beat the ground for buffering before the body. The advantage of this is that you can offset some of the gravity by slapping your hand, and the hand after slapping the ground may also play the role of turning gravity to the side and shoulders of your body.
? Therefore, it is very important that your center of gravity should be on the same vertical line with the point where your body touches the ground (the point where your hand slaps the ground), so that the buffering force after your hands and shoulders touch the ground can act on the center of gravity most effectively, slow down its descending speed and distance, and never reduce the impact force brought to your body after most of your body touches the ground.
Many advanced students often fall to their waist when learning somersault. In fact, because the upper body is parallel to the ground after leaving the ground, the direction of gravity falling is not a straight line. Hands can only prevent the upper body from falling and provide buffer for the upper body, but they can't stop the center of gravity, that is, the lower abdomen and waist. Therefore, the direct point of gravity drop is the position of your center of gravity, lower abdomen and waist. At this time, you will have a feeling of falling to the waist, and the heavier the person, the more obvious this feeling of oppression.
I believe that the technology of somersault makes many novices daunting. When we hear somersault, a series of words such as pain, terror, horror and injury come into view. In fact, when we master the principle of somersault, we find that somersault is not terrible. I'm afraid it's because you don't understand and haven't thought about it carefully. Finally, I hope everyone can overcome their fears.
I once saw a video on the Internet in which an adult did a somersault, and a few-year-old child next to him suddenly learned to do a somersault, but nothing happened. We are afraid because we think too much and worry too much.
Any beautiful action routine includes nage's accurate use of power and uke's perfect solution and correct response to external forces. So every seemingly perfect action is actually hard-won.
There are many kinds of attack methods of Aikido, which are full of fun. In fact, the technique of closing is also a problem of Aikido. It is not easy to complete a beautiful grafting technique, and all parts of the body play an important role in the execution of the grafting action. Various techniques of Aikido are also ever-changing, and all techniques are the forces of assimilation, change and turnover in all directions. Mechanical principles are always instilled in aikido's various movements. Everyone's own physical condition is different, and so is his opponent's physical condition, so when the two conflict, the power reflected is ever-changing In the process of practicing Aikido, we should not only follow the teacher's demonstration, but also flexibly use the technology of Aikido according to our own physical condition and the physical condition of our opponents, and finally achieve the effect of defeating the enemy with technology.
Kaizu Zhi Zhi Shengping not only created various techniques and movements of Aikido, but also created a set of martial arts theories, called "Aikido Martial Arts". More importantly, he integrated his understanding of the world into the theory of Aikido. All actions and techniques are based on this theory, which is a concrete application and extension of this theory. Therefore, we learn these techniques not only to acquire martial arts skills, but more importantly, to experience and appreciate the martial arts spirit and world outlook that Kaizu wants to convey to us through the cultivation of techniques.