How does knee crouch rise to ring to return a responsibility

summary

Don't make a fuss when you find that the knee sounds when you squat up. Sometimes we will find that when you squat up or jump, some people will be surprised or indifferent. Our knees will bounce. Some people may not make a sound after one sound, and some people may make a sound when you squat down. This kind of noise is called bounce. Knee squats up to ring how to return a responsibility to tell everybody.

How does knee crouch rise to ring to return a responsibility

First: the reason for the physiological bounce is that there is joint fluid in the joint cavity, which plays a lubricating role. The joint cavity is negative pressure, which can maintain the stability of the joint structure. When the joint is pulled or bent (pulling fingers and breaking fingers can make a snapping sound), if the pulling force exceeds the negative pressure of the joint cavity, an obvious cavity will appear. The surrounding gas rapidly diffuses into the cavity and vibrates with the liquid, thus making a crisp sound. That is to say, the physiological bounce is caused by the gas vibration in the joint cavity.

Second: how to judge whether it is physiological bounce? Generally, physiological bounce meets the following conditions: 1. The sound is crisp, single, and does not repeat; 2. It only occurs when the joint is suddenly pulled or bent; 3. There must be a certain period of rest between the two bounces; 4. It is accompanied by slight pain or discomfort, and often has a sense of relaxation after the bounce. When you feel that your knee bounce does not belong to the above situation, then you may have pathological changes of the knee joint, which may be meniscus injury, discoid meniscus, osteoarthritis, synovial plica syndrome, knee ligament injury and so on.

Third: how to judge whether it is caused by the patellar joint bouncing? Method: let a person help you move the patella to the outside, then squat down, feel whether there is still bouncing below the knee joint. If any, move the patella inward and squat again. When the patella is fixed on either side, the bounce of the knee joint disappears, which indicates that the bounce of the knee joint is caused by the displacement of the patella. Cause: too tight medial muscle will move the patella inward, and too tight lateral muscle will move the patella outward. Treatment: for this kind of knee bounce, of course, the treatment method is to strengthen the vastus medialis or vastus lateralis, release the vastus lateralis or vastus medialis. Of course, there may be iliotibial tract and other muscle tension to make the patella shift. The specific reasons vary from person to person.

matters needing attention

There are many other reasons for knee springing, such as discoid meniscus, synovial plica syndrome, osteoarthritis, free body, old injury of cruciate ligament, insufficient joint fluid, etc.