1. Front overhand serve preparation posture: Facing the net, legs are naturally open, left foot is in front, and left hand holds the ball in front.
Throwing the ball: the left hand throws the ball smoothly and accurately on the front of the right shoulder, about 50 cm high. At the same time, raise your right arm, bend your elbow and pull it back. Your elbow is slightly higher than your shoulder, and your upper body leans back slightly. It is best to put your fingers together on a plane, with your fingertips facing up, your wrists leaning back, keeping a certain tension, and keeping your eyes on the sphere.
Hit the ball: push the right foot to the ground, move the center of gravity forward, and quickly drive the arm to swing through abdomen and bending. Swing your arm in a straight line and hit the back and lower part of the ball with the hard part of your palm in the front and upper part of your right shoulder. It is best to hit the cross center of the ball quickly, and the ball should be thrown too high.
2. Pre-serve preparation posture: Facing the net, the feet are spread back and forth, the left foot is in front, the knees are slightly bent, the upper body leans forward slightly, the center of gravity leaves the hind foot, and the left hand holds the ball in front of the abdomen. Throw the ball: the left hand gently throws the ball in front of the right side, about 20 cm high from the hand. Straighten your right arm and swing back. Hit the ball: with the help of the right foot, the center of gravity moves to the front foot, and the right hand swings forward to hit the ball. The lower back of the ball, the whole palm or fist is placed in front of the abdomen. When the hand touches the ball, the fingers and wrists are tense and the hand is straight. After hitting the ball, the center of gravity moves forward with the hitting action.
3. Side handball serve is easy to learn, but it is slow, weak and aggressive, suitable for beginners. (1) Preparation posture: Before serving, the left side faces the net, the feet are open, the left foot is in front, the knees are slightly bent, the upper body leans forward, the center of gravity leaves the hind foot, the left hand holds the ball in front of the abdomen, and the right arm naturally droops. (2) Throwing the ball: the left hand throws the ball smoothly on the right side of the front of the body, about one ball away from the hand. (3) While throwing the ball, straighten your right arm and swing back with the shoulder joint as the axis. When hitting the ball, push the right leg to the ground, swing the right hand forward, and hit the lower part of the ball with the palm of your hand in front of your abdomen. The center of gravity moves forward with the hitting action and quickly enters the game.
Technical essentials of volleyball girls' starting serve 1. Pre-serve preparation posture: facing the net, the feet are spread back and forth, the left foot is in front, the knees are slightly bent, the upper body leans forward slightly, the center of gravity leaves the hind foot, and the left hand holds the ball in front of the abdomen. Throw the ball: the left hand gently throws the ball in front of the right side, about 20 cm high from the hand. Straighten your right arm and swing back. Hit the ball: with the help of the right foot, the center of gravity moves to the front foot, and the right hand swings forward to hit the ball. The lower back of the ball, the whole palm or fist is placed in front of the abdomen. When the hand touches the ball, the fingers and wrists are tense and the hand is straight. After hitting the ball, the center of gravity moves forward with the hitting action.
2. Side handball serve is easy to learn, but it is slow, weak and aggressive, suitable for beginners. (1) Preparation posture: Before serving, the left side faces the net, the feet are open, the left foot is in front, the knees are slightly bent, the upper body leans forward, the center of gravity leaves the hind foot, the left hand holds the ball in front of the abdomen, and the right arm naturally droops. (2) Throwing the ball: the left hand throws the ball smoothly on the right side of the front of the body, about one ball away from the hand. (3) While throwing the ball, straighten your right arm and swing back with the shoulder joint as the axis. When hitting the ball, push the right leg to the ground, swing the right hand forward, and hit the lower part of the ball with the palm of your hand in front of your abdomen. The center of gravity moves forward with the hitting action and quickly enters the game.
Watch more videos on the technical essentials of tennis serving. Federer's serve is more difficult. The ball is not thrown straight up and down, but can be angled more. Ordinary or more studies, such as Nadal's, help to stabilize yourself. Pay attention to the highest point is to play ball, so that the arm can spread naturally. The second is to coordinate the use of the body and exert strength at the moment of serving.
The technical essentials of table tennis reverse serve are reverse friction serve, which is a relatively new service technology in the world in recent years. Its technical requirements are relatively high and its practical application effect is relatively high. Therefore, we must train more and be familiar with its essentials in order to truly master this service technique.
After years of thinking and practice, I have summarized ten kinds of reverse serve:
1, front friction and inner hook type (glinka)
2. Rub the front and swing the outside (Bohr)
3. Right hand pronation (Wang Hao)
4. smirnoff on the right side
5. Friction between the outside of the back and the front (Shi Lage)
6. Right external cutting height (difficult)
7, sprint around (difficult)
8, flip jitter (self-created)
9. Shake (Hao Shuai)
10, back inversion (marin)
In order to improve the service skills of golfers, the following tips are specially compiled for reference only.
First, the station. In general, the distance between the body and the end line is about 30 cm, near the left third of the end line, and the angle between the body and the end line is about 90 degrees, and the height of hitting the ball is roughly the same as that of the net.
Second, posture. Lean forward slightly, stand with your feet back and forth, and your left leg is solid and your right leg is weak. When hitting the ball, the body rotates 90 degrees to the left. After hitting the ball, the left arm should quickly leave the "triangle" (the triangle formed by the extension lines of the two columns of the net and the hitting point), inward (buckled on the chest) and outward (thrown to the front of the left thigh).
Third, the appearance. The racquet should be near the right hip and extend forward. The angle of the racket is about 45 degrees, and there is a slight internal rotation when hitting the ball. Whether you serve topspin or backspin, you must keep the consistency of your movements. But when serving topspin, the wrist is slightly arched and the racket is slightly drooping. When serving topspin, the wrist is slightly arched, the racket is slightly lifted, and the racket and the lower body wipe the ball.
Fourth, work hard. When serving, friction is the main way, and the ball passes through the net by its own elasticity. The force is mainly exerted on the waist, arms, wrists and fingers, and its force is mainly in the words "turn, send, belt and pressure": turn: turning the waist quickly is explosive; Hair: it means that the forearm is used to send the wrist forward, but when the topspin is served, the forearm is slightly heavy and the forearm is slightly drooping, and the forearm is used to send the wrist forward; When serving the spin ball, the upper arm should be raised, and then the big arm should be sent down and forward; Throwing: it means throwing your wrist forward. You can feel the racket chopping forward when you spin down, and you can feel the racket hitting the ball forward when you spin up. Press: Hold your head with both hands when touching the ball. Hold the racket tightly and press your fingers behind the racket below. The service order is "turn, serve and throw", so you must use the arm with arm and wrist arm, so that you can exert your strength.
Fifth, shoot. Be sure to act quickly when serving, so that the opponent's judgment is blurred. Because the contact between the racket and the ball is in the light after the open serve, it is easy for the opponent to see clearly. Therefore, when serving, you must make a quick shot and shake more, which will give your opponent an ambiguous feeling. If you hesitate a little, you will make mistakes, so as to win the service.
Sixth, changeable. This link is very important, that is, to master all kinds of service techniques, the service must turn, and the contrast between up and down rotation should be great. In actual combat, decide your own service type according to your opponent's discomfort. For example, if the opponent is not suitable for strong backspin, then you can give priority to strong backspin, and then occasionally make one or two topspin or no backspin, which can often achieve the desired effect! In short, we should be flexible and combine all kinds of rotation, length and left and right.
Seven, the landing point. When you can't serve a short ball, your body should be tight, and the first landing point of the ball should be on the half platform near the net. When playing billiards, the first landing point of the ball should be close to half of the end line. When serving the left and right corners, one should be tight, one should rely entirely on friction, and the other should be weak, so as to release the ball from the sideline.
Eight, reduction. After serving, you should immediately recover your body and take a half step back to the second board.
The technical essentials of anti-friction serve are introduced above. After mastering the essentials skillfully, more different serve postures can be evolved, which can make it difficult for opponents to catch the ball and enhance the actual effect of this serve.
1. What are the serving skills of volleyball? What is the key to good service? Give examples to illustrate the essentials of serving. Common volleyball serves include front serve, side serve, side hook float, side hook serve, front serve, front serve, jumping serve, jumping float and front serve.
Several parts of a serve include four links: preparing posture (holding the ball), throwing the ball, swinging the arm and hitting the ball into the field.
In response to your question, physical education class's theoretical test definitely refers to the forehand serve of volleyball, so the action essentials of forehand serve are: facing the net, the feet are naturally open, the left foot is in front, and the left hand holds the ball in front. Lift the ball with the plane support of the arm and palm, and throw it to the front and upper part of the right shoulder smoothly and vertically, with a moderate height. While throwing the ball with your left hand, raise your right arm, bend your elbow back to shoulder level, and turn your upper body slightly to the right. Straighten the highest point of the upper arm in front of the right shoulder and hit the back with the palm of your hand. When hitting the ball, the fingers naturally open to match the ball, and the wrist quickly makes a push to make the ball fly upwards. After hitting the ball, the center of gravity moves forward and returns to the court quickly.
Specifically, it should be the hitting action, hitting point, hand shape and strength.
The answer can be found in the examination paper.
How to Improve Volleyball Serving Skills In the process of swinging the arm to hit the ball, many students are used to bending their arms, which easily leads to the ball passing over the net. This is a technical mistake, we must learn the correct posture first. "I feel awkward when correcting the action, and even the success rate of serving the net is declining, but this is only temporary. Students must persist. "
When hitting the ball with your arm, the hitting point should be high, swing your arm at the highest point of volleyball, and there should be no pause in the middle, so as to ensure the hitting height first, and then it is easy to achieve hitting accuracy. Hit the ball accurately and hit the middle and lower part of the ball. The hitting action should be concentrated quickly and suddenly. The hitting point (the ball is falling) should be higher, and the trajectory of the arm swinging forward should be parallel to the ground, and the arm should not be dragged down. Hit the ball with your palm, not your wrist at the same time.
Yin Yin also gave some suggestions to students with relatively small strength. You can take the shoulder as the axis, and the arm will not stop after hitting the ball, and it will be sent directly to the shoulder to swing out, which is helpful for hitting the ball. Also, students who have difficulty hitting the ball with their palms can choose to hit the ball with their fists. Students can try to make a fist with four fingers and hit the ball with the heart of the fist.
There are also tricks to practice volleyball serving. In practice, students can use action decomposition exercise. Practice pitching first, and then practice hitting the ball when you can pitch steadily. The unarmed posture must be accurate to ensure that the action is not deformed when you really serve. In this link, it is also necessary to pay attention to swing the arm around the shoulder, and the big arm drives the small arm to swing. The trajectory of the swing arm should be forward, and it is not allowed to tilt the swing arm. Many people wave their hands to the left of their bodies, which is extremely wrong. In practice, the swing speed can be changed from slow to fast.
In the usual practice, students can use the wall to train beginners, not necessarily online training. After measuring the distance, draw a good line, and train with the wall with higher density.
It is necessary to throw the ball and hit the ball in the process of volleyball overhand service, and the continuity of the previous step must be maintained; Throw the ball too high, because if you throw the ball too high, you can't keep the continuity of the previous step. Therefore, in order to maintain the continuity of the previous step, we can only throw the ball to the highest point of the shot. As soon as the ball is shot, we will swing our arms to hit the ball.
Volleyball serve techniques can be divided into () () () and () techniques? This question is not good, it is not clear at all. If there are several kinds of volleyball serve, the common ones are frontal serve, side serve, side hook float, side hook serve, frontal serve, frontal serve, jump serve and frontal serve.
Several parts of a serve include holding the ball, throwing the ball, hitting the ball and entering the court.
Techniques and essentials of table tennis forehand serve: technical action essentials of table tennis serve.
1 The action essentials of table tennis forehand serve are as follows:
(1) Preparation before hitting the ball (including standing, pitching and racquet)
The left foot is slightly forward and the body is slightly deflected to the right. Hold the ball in the palm of your left hand on the right front of your body, throw the ball up with your left hand, and rotate your right arm inward, so that the face angle of the racket leans forward slightly, the wrist of your forearm naturally droops, and the elbow joint is higher than your forearm, leading the racket to the right rear of your body.
(2) When hitting the ball
When the ball falls from a high point to the height of the net, the right side of the ball rubs to the upper right. At the moment of touching the ball, the thumb presses down and the wrist swings from the rear right to the upper left. After hitting the ball, the first landing point of the ball is close to its own end line.
(3) After hitting the ball
The arm continues to swing forward and left, and then returns quickly.
2 Preventive measures
(1) The force is mainly exerted on the forearm and wrist, and the body's center of gravity shifts from the right foot to the left foot during exercise.
(2) When selecting a position, you can serve a diagonal line and a straight long ball from the side position at a large angle, or you can stand in the middle of the table and serve a double-line long ball to the opponent's forehand position or backhand position. It is required that the angle of the two lines be as large as possible, and the ball will be introduced from the sideline at a large angle after landing on the opponent's table.
Techniques and essentials of table tennis backhand serve: short ball.
Action essentials: the preparation posture is similar to serving. The difference is that when hitting the ball, the racket is shaped backwards, and the forearm and wrist lightly hit the middle and lower part of the ball. The hitting point is the same height as the net, and the first landing point should be in the middle of the table.
Backhand serve:
Action essentials: the right foot is slightly forward, the left hand holds the ball on the left side in front of the abdomen, and the right hand holds the racket on the left side of the body. After throwing the ball, when the ball falls, the forearm swings quickly from back to front, and the racket face slightly leans forward to hit the middle and upper part of the ball. After hitting the ball, the forearm and wrist swing forward.
Backhand sharp downward spin:
Action essentials: similar to backhand serve, the difference is that the racket face leans back slightly at the moment of touching the ball and hits the middle and lower part of the ball. The hitting point is slightly below the net. When the forearm swings forward, the wrist presses the friction ball and the first landing point should be near the end line of the table.
The backhand serves the top right (bottom) spin:
Action essentials: right foot in front. Clap your hands and lead the racket to the upper left, with the handle slightly downward. When the ball falls at the same height as the net, the forearm and wrist exert force at the same time, and the wrist rotates to the upper right at the moment of touching the ball, so that the racket rubs from the middle of the ball to the upper right. When serving the right down spin, the wrist rotates to the right down, so that the racket is wiped from the middle of the ball to the right down.
High throw serve:
Action essentials: stand on the left half of the table, with your right foot behind, your knees slightly bent, and your side is about 90 degrees from the table. The distance between the player's body and the table is about 20 cm. When throwing the ball, the elbow of the ball holder should be slightly close to the side, the ball should be slightly higher than the table, the wrist should be fixed, and the ball should be thrown upward with the strength of the forearm and the extension of the knee joint. When the ball is thrown upward, the racket arm immediately leads the racket to the upper right, the wrist is also abduction, and the waist and abdomen are slightly lifted to the right. When the ball falls slightly above the net, it begins to swing the ball. At the moment when the racket touches the ball, the action is the same as the left side up (down) spin of the forehand.
Squat serve:
Action essentials: There are basically two kinds of squat serve, one is to throw the ball up standing first, and then hit the ball with a squat; The other is that the body throws the ball up in a semi-squat position and then hits the ball.
When the squat serves the right hand to spin the ball up (down), throw the ball up, hold it with both hands and pull it to the shoulder height. When the ball falls slightly higher than the net, the racket swings from left to right, rubbing the upper (lower) part of the right side of the ball to make the ball rotate up (down) on the right side.
Forehand serve:
Action essentials: Stand with two feet parallel, with the ball in the palm of your left hand on the front right side of your abdomen and the ball in your right hand on the right side of your body. After throwing the ball, when the ball falls, the forearm swings quickly from back to front, and the racket face slightly leans forward to hit the middle and upper part of the ball. After hitting the ball, the forearm and wrist swing forward.
Forehand serve and non-serve:
Action essentials: the right foot is behind, the forearm is lifted backwards, and the racket face is slightly tilted backwards. When the ball falls to the height of the net, the forearm swings back and forth quickly, and the wrist rotates hard to rub the middle and lower parts of the ball. When the ball can't be served, mainly at the moment when the racket touches the ball, hit the racket forward to reduce the downward friction.
Forehand serve left topspin (topspin):
Action essentials: Right foot backward. When pitching, clap your hands to lead the racket to the upper right and abduct your wrist. When the ball falls at the same height as the net, the arm swings to the lower left quickly, and the wrist rotates to the upper left at the moment of touching the ball, so that the racket rubs from the middle of the ball to the upper left. When the left backspin serves, the wrist rotates rapidly to the lower left, so that the racket rubs from the middle of the ball to the lower left.