5. For amateur badminton lovers, don't change some movements if they can't be changed, but for those technical movements that are easy to cause injuries, they must be changed! Only by standardizing reasonable technical movements and reducing injuries can we really enjoy healthy and happy badminton! In badminton, for technical and tactical purposes, the use of high-distance ball and killing ball occupies a large proportion in the whole actual combat, and its strength and strength are incomparable with other techniques. Therefore, in the application, we should not only suppress the opponent hard, but also pay attention to self-protection after exerting force to avoid or reduce the damage of fragile joints. Because the action of golf and killing the ball is basically similar or the same except the hitting point, we use the basic swing mode of golf to analyze which link is easy to get hurt. The swing of the golf ball can be divided into four parts: 1, lift and racket: hold the body on one side of the arm, start from the lower limb, turn to the back side, and rotate the racket from the middle and lower part of the body at the same time. The racket face should be as parallel as possible to the net. Hold the racket empty! Purpose-Raise the racket and get ready to hit the ball! 2. Push the body to lead the racket: the grip side exerts force from the foot, pushes forward to drive the body to rotate forward at the same time, the shoulder drives the big arm to swing forward quickly, the elbow is as close to the head side as possible, and the forearm and racket are relaxed backwards and naturally droop. Raise the racket in the air! Purpose-concentrate on physical strength 3. Pull the racket: the forearm swings outward quickly above the shoulder, stops directly above the shoulder, and the forearm rotates inward to hold the racket completely. Purpose-hit the ball. Take the racket to the other side of your body naturally. Objective: to dissolve the residual strength after hitting the ball and protect the joint from injury! From the first three movements of the above four decomposition links, it can be seen that the wrist is in the process of relaxing and assisting the exertion, and there will definitely be no problems when relaxing, and it is also very powerful when exerting force, so it is not easy to get injured. The rest is the fourth injection. Since it was filmed, it seems that there will be no problem. No! Years of experience, most people's problems are here! Because the filming action is not completed and suddenly stops in mid-air, there will be forced filming. In this way, because the residual strength after hitting the ball is not completely dissolved, the residual strength can only be borne by the limited bending angle of the wrist. We might as well make a comparison. In the arm part of the human body, the wrist joint may be the weakest. Because the action is not standardized, it is natural that the racket is close to the wrist for a long time. But no matter what you do every day, you can't do without the activity of your wrist, so the tendon sheath of your wrist is difficult to heal, which leads to a long illness once you are injured. It can be seen how important it is to emphasize the action norms of badminton! As for the relevant treatment, I am not a doctor, and I can't come up with a good prescription to treat you. I just help you analyze, find problems, change bad habits, and let more people avoid or reduce the same problems as you. 6. Killing the ball is to slant the ball hit by the opponent at the highest hitting point as much as possible. This kind of ball has great strength, straight arc, fast landing and great threat to opponents. This is the main offensive technique. Killing the ball is divided into forehand killing straight ball and diagonal ball. Head shot and oblique shot, forehand flying assault shot, backhand shot. Forehand straight ball (sideways take-off): The preparation posture and action essentials are basically the same as forehand golf. After the steps are in place, bend your knees, lower your center of gravity and prepare to take off. When taking off sideways, the shoulder is lifted to the right and upward to drive the upper arm, forearm and racket to lift up, thus stretching the body upward. After take-off, the body leans back, and the shoulders are arched backwards. Then the right upper arm swings up to the right, the forearm swings back naturally, and the wrist stretches back. The forearm drives the racket to swing from top to bottom, and the grip should be loose. Then, the right upper arm swings to the upper right with the elbow as the guide, and the forearm swings forward at full speed, driving the racket to swing forward at high speed. When the hitting point is in front of the shoulder, the forearm is pronated, the wrist is slightly retracted, and the wrist flashes to kill the ball. At this time, the fingers should suddenly grasp the handle and concentrate the explosive force of the wrist on the hitting point. The angle between the racket and the horizontal plane in the hitting direction is less than 90 degrees, and the racket hits the back of the front bracket to make the ball go straight down. After killing the ball, the forearm moves forward inertia. Take the racket back to your chest during the return. Forehand kill diagonal ball (sideways take-off): the preparation posture and action essentials are the same as forehand kill straight ball. The difference is that after taking off, the body turns to the left and exerts force to help the arm hit the ball obliquely. Overhead straight ball and oblique ball: the action essentials and preparation posture are the same as overhead high ball. The difference is that when you swing and hit the ball, you should concentrate on pressing down in a straight direction (refer to the above picture) or diagonal direction (refer to the left picture), and the angle between the racket face and the horizontal plane in the hitting direction is less than 90 degrees. Kill a straight ball in the air: step back with your right foot sideways and prepare to take off. After take-off, the body jumps to the right rear, the upper body leans back to the right or bends back, the right arm is lifted to the right, and the shoulders are pulled back as far as possible. When hitting the ball, the forearm swings upward at full speed, and the wrist extends from the back through the forearm to flexion. At the same time, hold the racket tightly to press the wrist to produce explosive force and hit the ball forward and down at high speed. After a sudden smash, the right foot landed on the right side, and the center of gravity was in front of the right foot. The right foot touches the ground in front of the left side, the left pedal moves back to the center, and the arm naturally moves forward with inertia. 7. Play badminton well-advice for friends who are learning badminton. After several training courses, I found some common problems for beginners, and these problems are the key problems that affect their skills. Here, I will discuss with you my views on how to solve these problems. 1, the first is the grip. Mastering the correct grip method is the first step to play badminton well. Because only the correct grip can give full play to the role of fingers and wrists when hitting the ball. 2. Preparation posture before hitting the ball. There are two kinds of preparation posture, one is the posture of receiving the service (singles and doubles), and the other is the posture of preparing to hit the ball after serving. When receiving service, stand with your feet back and forth, that is, your left foot is in front and your right foot is behind. The distance between the feet is slightly wider than the shoulder, and the heel is raised. After receiving the serve, the preparatory action should be to stand with two feet parallel, with the distance between the feet equal to the shoulder width, the right foot slightly in front, the left sole more than half, and the heels of the two feet slightly raised, so start at any time. 3. The standard action of golf swing. In my opinion, we'd better practice our swing first. The correct swing can make you give full play to your potential, save your strength and reduce your injuries. But some friends are born with great strength, and they can also hit the ball very far and hit some beautiful balls with incorrect posture. If they think they don't want to change, they can't be forced. After all, some friends are for fitness and entertainment. Because, when changing moves, some people will feel particularly uncomfortable and complain that I can't even play without changing moves. Yes, habit becomes nature. Habits that have been formed for a long time are really hard to get rid of. But when you stick to it, I believe you will feel that the correct swing can make you better control the impact of the ball and give full play to your strength in the process of playing. Before hitting the ball, the first side, the right foot in the back, the right foot as a support point. When swinging, you should take the elbow as the axis, and the big arm drives the forearm to surround it, mainly relying on the swing speed of the forearm, the strength of the wrist and fingers, and of course the strength of turning the waist. Pay special attention to sideways, with your left foot in front and your right foot behind. Put your weight on your right foot when you exert your strength. When killing the ball, it is recommended that your friend kill the ball with one foot jump, which will help you get off to a quick start after killing the ball. The relationship between swing speed and strength. Strength is very important in the swing, but it is not an absolute factor. For a very simple example, athletes engaged in throwing and weightlifting events have much greater arm strength than badminton players, but if they are allowed to kill the ball than badminton players, I don't have to say the result. The reason is the speed of the swing. The faster the swing, the greater the power. In many competitions, we can see that some athletes are thin, but the ball is heavy, and the speed of the ball is like a bullet leaving the chamber. So speed plus strength is the most perfect. 4, the role of non-clapping. Some friends ignore the role of non-grip, thinking that the hand is only raised to look good or pose when hitting the ball, and it doesn't matter where it is placed. High five is very important when hitting the ball. It can keep your balance. At the same time, swinging to one side can drive you to turn around and increase your waist and abdomen strength. Don't underestimate it. 5. The angle of the racket and the choice of hitting point when hitting the ball. When you hit the ball, choose different angles and hitting points to achieve your goal of hitting the ball, and the hitting effect is different. When playing golf, the racket face is slightly upward, the hitting point is above the head, and the arm is forced forward and upward. When playing golf, the racket face is forward, the hitting point is slightly forward, and the arm is forward and upward. When killing the ball, the hitting point is in front, and the racket face is down when hitting the ball. At the same time, the speed and strength of the forearm, wrist and fingers are used to swing down. When playing golf, use your fingers to control the racket face, hit the right or left side of the ball table, press down with your wrist and fingers to change the direction of the ball, and pay attention to maintaining the consistency of action. 6, footwork. The footwork is divided into: 1, online footwork 2, midfield moving footwork 3 and backcourt footwork 3. Training of footwork is very important. Most footwork starts with the right foot, and the end of footwork is also on the right foot. Of course, a friend with a racket in his left hand is the opposite. The key is to master the adjustment and application of footwork skillfully, that is, the connection of footwork. 7, the ball in front of the net. Pushing, hooking and pinching is one of the light techniques in badminton, which is technically difficult. It is mainly to grasp that when touching the ball, the hand holding the racket must be relaxed and try to control the racket with your fingers, so as to play a high-quality ball. 8. Playing golf well and learning footwork are the most important skills that badminton lovers must master. If you can return the ball to the opponent's backcourt in a very passive situation and use your footwork flexibly, many people will be defeated by you in badminton amateur competition. The above is my personal opinion and experience, and there may be many shortcomings and wrong views. After the training, you can also refer to many online articles and videos about badminton technology. I would also like to invite experts to criticize and correct me, so as not to mislead friends who like badminton. Badminton is an elegant sport that integrates competition and viewing. I hope that after mastering the correct movements, my friends can improve their level and fully enjoy the happiness brought by badminton! [I hope my answer can be used by everyone]