Dance Injury-Knee Pressing

Dancing knee pain and low back pain are occupational diseases of dancers in China, most of whom are national and classical dancers. However, there are few accidental injuries caused by sudden violent impact, mainly chronic injuries caused by improper training and man-made injuries caused by lack of understanding of human body structure. This article mainly talks about man-made injuries.

? Due to the aesthetic preference of some dance species, some species will pursue very straight visual stimulation of the knee joint. You may think of ballet, yes, the history of dance training in China is really short, and the initial stage is mainly based on the Vagonova system of the former Soviet Union. Due to the low quality of the people at that time and some political reasons, the time of knowledge assistance in the former Soviet Union was short. We can't learn the excellent basic theory of dance science from it, which leads us to misunderstand the training based on ballet mode and ballet and other species training. As a result, there are many improper trainings caused by misunderstanding in Chinese dance training and classical dance training, which leads to a lot of knee pain.

? Due to the misunderstanding of the requirement of upright stretching, it is considered that the straighter the knee joint, the better. For some people whose knees don't look straight enough, take the training of "pressing knees".

? All the dancers who have tried should have a deep understanding. The training process is not only painful, but also they will feel their knees weak and unable to control them well after the training. Understanding the motion mechanism of joints is a necessary way for us to understand and solve problems.

Knee joint is a compound joint, including patella, tibia and femur.

? The wrong understanding of "big knee" is that the patella is too large, and external force should be applied to change its structure. We can imagine that if it is feasible, plastic surgeons will almost lose their jobs, because we can sit on our faces with our butts and turn the "big face" that girls think is not beautiful into a popular melon face. In fact, the shaping of this face can only be done through surgery.

? But through the way of "pressing knees", some knees have become able to cater to the aesthetic preference of "straightness". How did this happen? We need to know the related tissue function of the knee joint.

? If these bones are allowed to accumulate freely, they are very unstable, so the human body involves a very powerful stabilizing auxiliary device "ligament". Among them, these two ligaments, including the anterior and posterior cruciate ligaments, are used to prevent the excessive displacement of our femur and tibia and maintain the stability of the knee joint. Without their help, the knee joint is a fragile structure. By "pressing the knee", the length of the anterior cruciate ligament is artificially changed, which makes the femur shift excessively relative to the tibia in the future, and it seems that the knee joint becomes straight.

? Although the aesthetic preference was satisfied, the participants paid a huge price. It is very backward in today's mainstream training oriented to safety and health. Ligament is a kind of tissue that can't shrink quickly. Even if it is restored to its original position, it will take a long time. When it is stretched to a certain extent, it will exist in name only. In extreme cases, it will also lead to the rupture of knee ligament during exercise, combined with meniscus injury and tearing fracture.

? Even if extreme situations don't happen, this thing called knee hyperextension will affect your bounce, leg shape, flexibility and many other problems. Knee hyperextension will also increase the rotation angle of the knee joint, which will make the knee joint function abnormal. After a long time, it will cause typical dance injuries. The dancer's common injury "weather forecast knee" (this is very accurate) also has his credit.

? Have you avoided the dance injury caused by this backward training method and at the same time catered to some aesthetic standards of dance? The answer is yes, which is also one of the goals of dance science.

? First of all, we need to know the difference between professional dance training and mass dance education. Catering to aesthetics is the task of professional dancers (China classical dance, folk dance, ballet, etc.). ) must be completed. They must have big straight legs when standing on the stage, otherwise the audience will not sell them. Therefore, in the initial stage of professional actor training, we first screen out those who can't meet the aesthetic standards. The choice here is entirely natural. If you find that your knees are big, there should be no chance to enter the next round of selection. However, in popular dance education, all people who are interested in dance are between the ages of 3 and 60. They take part in dancing for many purposes, but there are few career choices to make a living by performing. So they don't need to choose materials, and they don't have enough conditions to choose materials for this group. Therefore, it is a blind practice to popularize dance education and choose "knee pressing". Being able to understand the contents of the appeal is the basis for continuing reading.

There seems to be more than one knee joint, which is generally divided into structural type and functional type.

1, structural problem

The so-called structure can be understood as innate and unchangeable. For example, the structure of the patella is somewhat different.

? Structural problems will be directly told in vocational training that it is not suitable to ask for withdrawal from vocational training; The popularization of dance education can be ignored, and there is no obstacle for a "knee-big" child to complete a rabbit's happy dance.

2. Functional problems:

? The so-called functionality can be understood as the lack of a certain ability, or the lack of ability caused by changeable reasons. But also can be improved by functional training. This is the focus of dance training, we can change the "big knee"! Our key is to understand the function of the knee joint. As we all know, the knee joint can "bend" and "stretch". In fact, after carefully understanding the human body knowledge, you will know that the knee joint also has the function of rotation.

? Because of the structure of the knee joint, it will rotate when it bends and stretches. It can also be understood that the knee joint moves along a rotation+flexion and extension trajectory, and one of them has obstacles, which will immediately affect the other. Therefore, instead of continuing to train straightening without straightening, we should train rotation.

Understanding the movement principle is the key factor of training. Joints rely on muscles to provide energy to produce movement, which can make the knee joint move.

When we analyze all the information, we can train the big knees that can't stretch straight. Because of a lot of knowledge accumulation and early analysis, the training time has become very simple.

Internal rotation, knee flexion, external rotation, foot flexion, knee extension, easy to get the big knee. Have you learned?

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Transferred from Dance Injury-Knee Pressing by Siwei Dance Research Institute.