Technical essentials of table tennis forehand service

Technical essentials of table tennis forehand service

Serve is characterized by fast speed, long landing point, large momentum, large angle and strong suddenness. The flying arc of the ball is low and inclined to the left, and the right hand topspin is very strong. Sometimes, according to tactical needs, it is very effective to use this service when purposefully forming a stalemate with the opponent. Forehand running is a very effective means for beginners of table tennis because of its inflexible footwork. For players who are good at rubbing and attacking, using the running ball will also be very effective. Therefore, table tennis beginners should seriously practice forehand running techniques.

First, the action essentials of forehand running technique

1, the essentials of throwing the ball and leading the racket

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, hitting the ball essentials

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 the finish line.

3. Follow the essentials

The arm continues to swing forward and left, and then returns quickly.

Second, the forehand serve matters needing attention.

1, the force is mainly exerted on the forearm and wrist, and the body center of gravity moves from the right foot to the left foot during exercise.

2. When choosing a position, you can serve a long ball with a diagonal line and a straight line, or you can stand in the middle of the table and serve a long ball with two lines to the opponent's forehand or backhand position. The angle of the two lines should be as large as possible, and the ball should be released from the sideline at a large angle after landing on the opponent's table.

Related reading-Matters needing attention in table tennis service

In order to improve the service quality, we must first understand the three factors that determine the service quality: speed, rotation and landing point. Through the analysis of the three factors, we can know in detail the matters that should be paid attention to when serving.

First, rotation

The charm of table tennis is mainly due to the change of rotation, which can be caused by the difference of friction position and hitting direction between the racket and the ball. The main reason why many golfers eat serve is that their judgment on rotation is inaccurate. Use the same action to catch the non-rotating ball and the downward rotating ball with similar landing points. If the next spin ball just crosses the net, it will definitely be high when it misses.

The difference of rotation mainly depends on the position of the contact ball and the direction of force. Friction against the bottom of the ball, the ball with forward force direction has the property of downward rotation. If the ball spins sideways, it needs to rub the middle of the ball, and the direction of force is forward. In order to better serve the ball that needs to be rotated, it is necessary to adjust the grip mode. If you want to serve the topspin, try to put the racket flat. If you serve the topspin or topspin, try to stand the racket up.

The strength of rotation mainly depends on the friction between the racket and the ball and the instantaneous strength. Strengthening friction is the key to produce rotation. Friction can be divided into thin friction and thick friction. The contact area between the thin friction racket and the ball is small, while the thick friction contact area is large. Under the action of the same force, the ball with low friction rotates more strongly. When some golfers use thin friction to serve backspin, either the ball doesn't spin enough or the net falls off. The main reason is that the instantaneous strength is not enough, so we should pay attention to hitting the ball quickly.

Spin is not the better when serving, its main purpose is to let the opponent judge that the spin is not good. For example, in a game, at the beginning of backhand service in the table, the opponent returned the ball to the table by rubbing it, neither high nor low. If you can't serve with the same action at this time, if the opponent is still using the previous action, the ball will easily go out of bounds or fly high, and then you have the initiative. It is better to focus on the change of rotation when serving, because many times we can't expect to score points directly by serving.

Second, speed.

When serving food, speed and rotation are always the relationship between fish and bear's paw, and sometimes you can't have both. The main reason is that improving the service speed requires a large impact component between the racket and the ball, while rotating requires reducing the impact component between the racket and the ball and increasing the friction component.

The speed of the ball mainly depends on the swing speed, the instantaneous explosive force of the racket and the impact friction ratio. When playing with a loop ball with good basic skills, as long as the ball is released, it can generally be pulled back, so the fast long ball can only be used as an auxiliary service. But you can improve the speed of the ball when you are playing against a golfer who has poor basic skills or plays particles.

Third, the landing point

Usually, you should master the characteristics of combining long and short and combining left and right when serving. If you serve a long ball blindly, the opponent will leave the table and jump off the board when receiving the service. If a short ball is added at this time, the opponent may miss the ball or catch it out of bounds.

The choice of landing point is mainly to observe the opponent's position when receiving the service. If the position is forehand, you can spin the ball with forehand; If the station is close to the platform, you can serve a long ball; If the station is far from the platform, serve a short ball. In short, we must pay attention to the opponent's position when serving and choose the right position to serve.

Main facilities for playing table tennis

Venue standard

The Olympic table tennis competition will be held in the gymnasium. The specific standards of the gymnasium are as follows:

Competition area

It includes a formal competition venue with a standard size (8m wide,16m long, ceiling height not less than 4m) that can accommodate 4 or 8 tables (depending on the competition mode). The competition area should also include the channel next to the competition table, electronic display screen, athletes, coaches' seats and competition officials' areas (technical representatives, referees, arbitrators, etc.). ), photographer area, TV camera area and

lamplight

In order to ensure the clarity of the Olympic TV broadcast images, the illuminance is required to be 1500 ~ 2500 lux, and the illuminance of all tables is the same. If it is necessary to add a temporary light source due to TV broadcast and other reasons, the angle between the light source and the ceiling should be greater than 75 degrees. The illuminance of other parts of the competition area shall not be less than 1/2 of the illuminance of the competition table, and the light source shall not be less than 5 meters from the ground. Generally, the surrounding area of the venue should be dark, and the illuminance in the auditorium should be significantly lower than that in the competition area, so as to avoid dazzling light sources and natural light without covered windows.

ground

The floor shall be a wooden or movable plastic floor of brand and type approved by ITTF. The floor is elastic, and there are no other signs and signs of movement. The color of the floor should not be too light or too reflective, but red or crimson; Don't use too much oil or wax to avoid slipping.

temperature

The wind speed in the pavilion is controlled within 0.2 ~ 0.3m/s, and the temperature is about 20 ~ 25℃, or 5℃ lower than the outdoor temperature.

Basic rules of playing table tennis

Choice of serving, receiving and positioning

1. The right to choose the service, receiving service and venue should be decided by choosing the front and back of the coin. The right player can choose to serve or receive first, or he can choose to stand aside first.

2. When a player chooses to serve first or receive first or choose a court, another player should have another choice.

3. After each score, the receiver becomes the server, and so on, until the end of the game, or until the scores of both sides reach 10, the order of serving and receiving remains unchanged, and each person only serves one point in turn.

4. The party in one direction in a certain game should be changed to another direction in the next game. In the singles tie-breaker, when one side scores 5 points or more, they should switch places.

Error handling of service and receiving orders and directions

1. Once the referee finds that the order of serving and receiving is wrong, he should immediately suspend the game and serve or receive according to the order established at the beginning of the game and the score on the field. In doubles, when mistakes are found, the game will continue in the order determined by the party who has the right to serve first.

2. Once the referee finds that the players should switch places but not, he should immediately suspend the game and correct the players' positions according to the scores on the field in the order established at the beginning of the game before continuing the game. In any case, all the scores before the error is found are valid.

3. When the ball from the server touches the net, it is called "wiping the net". The referee should order the server to serve again. If you clean the net twice in a row, it is a foul and the scorer will deduct points.