When it comes to where is the most vulnerable to injury, the knee is naturally the first part most people think of.

However, many runners know little about the knee before they are injured, so that they do not pay enough attention after injury.

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The anterior and posterior cruciate ligaments pass through the middle of the knee joint and cross each other, so “cross” means “cross”.

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The fibular collateral ligament (LCL) helps maintain the stability of the lateral knee, 3.

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Even some people want to understand the structural characteristics of the knee after repeated injuries.

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The main movement of knee joint is completed by the joint formed by tibia and femur, which is also called tibiofemoral joint.

The bones that make up the knee joint include the femur, tibia, and patella.

Quadriceps femoris stretching knee joint is mainly completed by quadriceps femoris, which is composed of medial femoral muscle, lateral femoral muscle, medial femoral muscle and rectus femoris muscle.

The posterior cruciate ligament (PCL) Prevent excessive posterior displacement of the tibia relative to the femur.

Muscle the muscles of the knee can not only produce joint activity, but also maintain the stability of the joint.

cartilage   The ends of the tibia and femur are covered with tough cartilage called the meniscus, which has a cushioning effect.

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The tibial collateral ligament (MCL) helps maintain the stability of the medial knee, 2.

In fact, understanding the structure of the knee is helpful to judge the location and type of injuries, so that you can better deal with injuries.

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The main muscles of the knee joint include quadriceps femoris and hamstring.

The iliotibial tract is located outside the knee, and the iliotibial tract is a relatively tough connective tissue.

In addition to the quadriceps and hamstrings, there are other important muscles around the knee, which are responsible for completing various knee movements and maintaining joint stability.

How to prevent knee injury? According to the above analysis, the muscles of the knee can maintain joint stability and help limit abnormal bone movement.

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The meniscus can also help maintain the stability of the knee.

Therefore, injuries can be prevented by exercising the strength of these muscles (such as quadriceps femoris, hamstring and gastrocnemius).

The main function of the gastrocnemius at the back of the knee is to straighten the foot (plantar flexion).

There are four main ligaments in the knee joint.

Hamstring knee flexion is mainly the result of hamstring contraction.

The location of the hamstring attachment point helps limit excessive forward movement of the tibia relative to the femur.

The muscle starts near the groin and its main function is to adduct the femur.

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Hamstring is the general name of biceps femoris, Semimembranous muscle and semitendinosus muscle.

The gracilis muscle is located inside the knee.

Without the meniscus, the tibia and femur rub against each other, causing rapid bone wear.

At the same time, the gastrocnemius also flexes the knee joint together with the hamstring muscle.

Let’s learn about the structure of the lower knee ~ in short, the knee joint is composed of 3 bones, 2 main muscles, 4 main ligaments and cartilage to maintain joint stability.

The anterior cruciate ligament (ACL) limits the excessive forward movement of the tibia relative to the femoral bone, 4.