"Subject 3" has been smashed by many people! It’s pretty tragic. Don’t go in.

When it comes to subject three, the first thing people think of is the test of driver’s license subject three, but this "subject three" is not the other "subject three"

"Subject III" is a magic dance popular on a short video platform. Waving hands, twisting waist, swinging hips, and half-twisted feet, coupled with "brainwashing" music, this dance has aroused the imitation of many young people.

"Subject III" is not only a solo dance, but also a group dance in some restaurants, where diners can watch free dance performances while eating hot pot. ……

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.

However, when everyone followed suit, some imitators began to have different degrees of physical injury — —

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.
A netizen shared his feet after jumping "Subject 3" on the Internet. Source: A social platform

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.
Source: Network

So, is it really dangerous to jump "subject three" How can we avoid being stumped by subject three?

Is it really risky to jump "subject three"

First of all, let’s talk about what "subject three" looks like in the eyes of professionals.

After watching this dance by professionals,The most uncomfortable thing is that the knees and ankles are varus to varying degrees while the dancers twist their waist.

The so-called varus is that the distal limb of a joint moves inward, and the most typical ankle varus action is spraining the ankle.

It is estimated that most people have experienced sprained ankle. Because of the structure of human ankle joint, the lateral fibula is relatively longer, which gives the talus a bone block, and the triangular ligament inside the ankle joint is very tough, most people have sprained ankle.

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.
Inversion Image source: pxhere

There are three main ligaments on the lateral side of ankle joint, which are called anterior talofibular ligament, calcaneal ligament and posterior talofibular ligament. Among them, the anterior talofibular ligament and calcaneal ligament are the most prone to tear during varus sprain.

When these ligaments are torn, there will be serious swelling and pain in the ankle joint, and it is impossible to continue to exercise, and then the stability of the ankle joint may decrease.

If it is not handled correctly, it is very easy to cause chronic ankle instability and cartilage damage in the later stage, which is why some people will sprain their ankles more frequently after the first time.

The knee joint of human body is the joint that we pay most attention to, because it is used frequently and the probability of injury is not low.

The knee joint is mainly composed of femur, tibia, fibula and patella, of which the largest joint is tibiofemoral joint, followed by patellar joint and upper tibiofibular joint.

It is the ligament that connects these bones and provides the most important stabilizing force. In the core position between tibia and femur, there are anterior cruciate ligament and posterior cruciate ligament, which respectively prevent the tibia from moving forward and backward excessively relative to femur. Inside and outside, there are also medial collateral ligament and lateral collateral ligament, which respectively prevent the tibia from eversion.

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.
Source: Study on Biomechanical Model of Knee Joint Bearing, Tang Xiaoying, sichuan journal of physiological sciences, 2017

In the process of human movement, these main ligaments provide stability for the knee joint. When the joint goes beyond the normal range of physiological activities or is violently impacted by external forces, the ligaments may tear.

After the knee ligament is torn, some people can take conservative treatment. For example, after the anterior cruciate ligament is torn, if you want to return to intense sports activities, you need to consider anterior cruciate ligament reconstruction surgery.

In the movement of "Subject III", the ankle joint needs an extremely varus posture, and the knee joint should also cooperate with the varus posture. During this movement, the lateral ligament of the ankle joint and the lateral collateral ligament of the knee joint will be stretched to varying degrees.

Fortunately, if your dance moves are standard, the varus limbs are not load-bearing, so the risk of injury to the lateral ligament is controllable.

Although "subject three" is fun, these people should be cautious

However, if you are in the following three categories, you must be careful when jumping "subject three"!

(1) people with uncoordinated limbs.

Looking at the rhythmic dance in the video, many people are eager to try, but in fact, many people have "learned" their brains and "haven’t learned" their limbs.

If the limbs are uncoordinated, the risk of injury will increase exponentially. For example, in the case of varus lower limbs, the center of gravity will all be pressed up, and the result is self-evident.

② People with heavy weight

The greater the weight, the greater the pressure on the joints, and the risk of natural "subject three" will increase accordingly.

(3) drinkers

Many people use alcohol to entertain themselves, but they were embarrassed at first, thinking that they could let go of their hands and feet through alcohol.

But don’t forget, at this time, the "communication" between the brain and the legs and feet is also poor, so once there is danger, the risk of injury will increase accordingly.

Finally, let’s teach you a common training action, which can help strengthen the stability of ankle joint and prevent ankle sprain.

① Select a suitable elastic belt or elastic ring.

② To train the right ankle. The left side is fixed on the left ankle and the right side is sleeved on the front of the right foot.

③ The starting position is slight varus of the right ankle, and then the force is exerted to the maximum extent to the outside slowly, and then it falls slowly.

④ Generally, 12~15 times is a group, and 5~10 groups can be trained according to individual conditions.

"Subject 3" has been smashed by many people! It's pretty tragic. Don't go in.
Source: Author

This is the most basic and effective method for us to train the peroneal longus and peroneal brevis of the lateral ankle joint. Through training, I believe that your ankle can be effectively protected both in the dance of "Subject III" and on the court!