It's been almost half a year since I injured my left knee playing basketball, but I still haven't recovered! At that time, when I jumped up while playing basketball, I was hit above the knee and below the knee by two people respectively.

Skills of playing basketball to prevent injury: 1. Treading often happens when rebounding. You stepped on the foot of the person behind you. You can see it right in front of your eyes, so you rarely step on it. Then if you fall down after rebounding, you should tilt your ass up, lean on the person behind you, and try to land your legs forward, and your legs will land in the shape of ┐. Lean forward to keep balance, and it is also suitable for holding the ball to avoid being stolen. It is unlikely that you will step on your foot when you make a layup. If you step on it, remember the enemy. It must be intentional. 2. If you suddenly change direction or twist when you make an emergency stop, it must be because you stepped in the wrong direction when you changed direction. Everyone grew up learning Jordan's movements directly or indirectly (so did Comay and others). Jordan and most players have a characteristic, that is, they often buckle their feet and knees. This method is suitable for applying force when changing direction. For example, if you want to rush to the left, let the center of gravity move forward first, so that the buckled right leg can exert its strength smoothly, but the problem arises. If the right leg has exerted strength and suddenly wants to run to the other side, then the left leg is not lifted or buckled on the ground in time, and the left foot is not twisted? You may laugh at what's going on, such a stupid person. In fact, it is also very likely that you were shaken by your opponent while defending. If you want to run in the right direction at once, you will often make such mistakes, twist your feet or be knocked down. In addition, when you suddenly stop, you don't tiptoe forward, but continue to stop in the figure of eight. If you don't control your body well, you will twist your feet. The way to prevent it is to practice more basic steps, especially defensive sliding steps. When defending, you should give up the inner eight and put on the outer eight. If you want to move to the right, drag your left foot with your right foot, and vice versa. This is the correct slide, which can prevent the opponent from getting hurt and making a fool of himself more quickly. The change of breakthrough direction is also an emergency stop and then acceleration, so it should also be noted that even if it is a fake action, the toes should follow the front of the "fake action". This is not only more realistic, but also can avoid possible sprains. 3, landing skills: you can not jump high when shooting, and decide how high to jump according to the defensive situation. No matter what happens, try to avoid landing when flying sideways. When landing, it's either in front or behind. Never let your feet cushion sideways when landing. Once the landing is unstable, simply roll or fall. A bruise is always lighter than a sprain. Don't force yourself to hold your body steady, it may cause a sprain. Don't think it is cool to rush into the crowd and score goals. In case of injury, you will cry and say: If God gives you another chance, you will choose to shoot in situ. Common sports injuries and their treatment 1. Treatment of abrasion (skin surface damage after rubbing): A. Mild abrasion: If the wound is clean, it can be healed by applying red or purple liquid. B. Severe abrasion: (first of all, hemostasis is needed) cold compress method (explanation), limb lifting method, bandage pressure binding method, and finger direct pointing pressure hemostasis method. Cold compress: it can make blood vessels contract, reduce local congestion, lower tissue temperature and inhibit nerve sensation, so it has the functions of hemostasis, analgesia and detumescence, and is often used for acute closed soft tissue injury. 2. Treatment of nosebleeds (nosebleeds due to external impact): The injured person should sit down, lean back, temporarily breathe through his mouth, plug his nostrils with gauze, and apply cold towels on his forehead and nose bridge, which can generally stop bleeding. 3. Severe sprain (caused by tearing of ligaments, tendons and muscle surfaces attached around the joint when the range of motion of the joint exceeds the normal limit) Treatment: stop bleeding and relieve pain first. You can lift the injured limb, wash the injured part with cold water or apply a cold towel to make the blood vessels contract, reduce the bleeding degree and relieve the pain. Don't rub your selfishness to prevent bleeding from increasing. Then apply cotton to the wound and bandage it under pressure. After 48 hours of injury, use hot compress to promote the absorption of congestion. 4. Contusion (subcutaneous tissue, muscles, ligaments or other tissues are injured under the direct action of blunt objects or external forces, and the skin of the injured part is often intact or only slightly damaged. ) deal with the same serious sprain. 5. Concussion (the head is hit by an external force or collides with a hard object, causing excessive vibration of brain nerve cells and fibers. ) can be divided into mild, moderate and severe concussion. Treatment: For patients with mild concussion, after a quiet bed rest for a day or two, they can participate in appropriate activities one week later. For moderate and severe concussion, keep the wounded absolutely quiet, lie flat, apply cold compress to the head, keep warm, and send them to the hospital for treatment in time. 6. Dislocation (due to direct or indirect violence, the articular surface deviates from the normal anatomical position. ) treatment: the action should be light, and stretching and twisting are not allowed. You can apply cold compress first, put a bandage on it, keep the joint fixed, and then ask the doctor to correct it. 7. Treatment of fracture (the integrity of bone is destroyed): first, we should prevent shock, keep warm, stop bleeding and relieve pain, then bind up and fix it and send it to hospital for treatment. Treatment: the action should be light and cannot be stretched and twisted. You can apply cold compress first, put a bandage on it, keep the joint fixed, and then ask the doctor to correct it. The main cause of knee injury is strain. At present, most of us play basketball on the concrete floor, and we don't care much about our shoes. It is easy to hurt our knees all year round. After going to college, you golfers can do some strength properly, because strength protects joints, that is, the muscles around joints are stronger, which can protect joints from injury more effectively, and you can relax your mind appropriately after exercise. In short, everyone should take care of themselves. The cartilage under the meniscus of the knee is easy to be damaged in the stage of physical development, and then it will hurt or even accumulate water, but the problem is not particularly serious, as long as it is properly rested. However, if you stop growing taller, you will get an idea. At this time, the cartilage has been basically calcified, and any injury is difficult to recover. Everyone should insist on playing basketball, but pay attention to protecting their health. After all, health is the capital of the revolution, and you can't play basketball if you are in poor health. Shoulder joint is the most relaxed joint in the whole body, which consists of humeral head at the top of upper arm and glenoid above scapula. The humeral head is round, slightly larger than table tennis, the glenoid is relatively flat, and the dimple is very shallow, which is about the size of the distal thumb. Chu Jiu's relationship is not deep, and it relies on the surrounding muscle ligaments to keep in touch with each other. When you are tired or don't exert yourself properly, you are easily injured, which is called crush injury. When traveling, the strap of the backpack is broken, or the wheel of the suitcase is out of order, which often leads to pushing, pulling or lifting. If you are eager to get on the plane or board the plane, it will lead to uncoordinated force, shoulder injury and sometimes ligament tear. After the injury, the shoulder hurts and it is inconvenient to move. You can touch a fixed tenderness point. Local hot compress can relieve pain and have a certain effect when going out. It takes several days to recover after an injury, and sometimes it is necessary to close the pain point or suture the laceration. Knee joint injury pain Knee meniscus injury People's knee joint is the largest joint among all joints and bears the main weight. It consists of the lower femur and the upper tibia. In front of it is the patella, in the middle is the "cushion", that is, the meniscus, surrounded by solid joint capsules, muscles and ligaments to ensure the stability of the joint. Weight is the vertical stress on the knee joint, and complex human movements such as the rotation of playing ball and squatting in the toilet are lateral stresses. If the stress is too large, the two menisci of the knee joint are easy to be damaged, especially when the rotational force is too large, meniscus tear's injury is more likely to occur. Meniscus injury with joint capsule injury. Because of the rich blood circulation, it is easy to bleed, resulting in hematocele, pain and swelling in the knee joint cavity. Knee sprain pain is common during the trip. As long as it is not swollen, you don't have to worry about meniscus injury. Meniscus is cartilage tissue with almost no blood supply. Once the injury is difficult to heal, it is the cause of joint pain after the injury. Surgical removal of meniscus and arthroscopic removal of small tears and strip tears are acceptable and effective methods. Not all meniscus injuries require immediate surgery. Be careful when walking, keep your knees stable and your joints moving. However, sometimes the cerebellar lobe will move because of uneven walking or uncoordinated posture, get stuck somewhere in the joint space, and feel severe pain, so that it can't walk immediately. Medically, it is called "joint atresia", which can be "unlocked" after activity or treatment, and the symptoms of smack disappear immediately. We should be aware of the special phenomenon of joint locking. Experienced patients often unlock themselves after many experiences, that is, relax the muscles of lower limbs and gently shake and flex the knee joint (flexion and rotation) to achieve relief.