Forehand stroke: preparation posture: generally speaking, the stroke posture is: feet are naturally open shoulder width, upper body leans forward, legs are flexed, the center of gravity is on the palm of the front foot, the batter is visually observed, and the running route of the ball is always fixed. Hold the handle with your other hand. Backward racquet: When the ball is in the forehand direction, the right hand holds the racquet, the elbow moves slightly backward, and the arm keeps moving. After the war, the body is placed sideways in front of the net, the feet are spread back and forth, and the center of gravity is on the hind foot. Swing the racket back quickly and smoothly with the spin. The racket should not droop and the racket head should be higher than the wrist. Make the racket parallel to the ground, tilt the racket head upwards, make the racket swing forward and move to a good position.
Hit the ball: when hitting the ball with a forward swing, you should hold the racket tightly and tighten your wrist at the same time. The racket starts from a point below the waist, moves in an arc, rises gradually and swings forward. The corner kick in front of the left hip should be slapped, and it should be kept in contact with the ball for as long as possible, so as to control the direction of the ball to the maximum extent. The racket follows the ball and prepares for the next shot.
Serve: Serving is a technique to control the ball by yourself, and there are many methods. Here is a brief introduction to the simple chopping technique. Stand by and hold the racket, throw the ball to the right at 1.5 meters, and guide the racket to the right, back and top at the same time. Swing forward and spike quickly, so that the handle of forearm and wrist racket is almost in a straight line when hitting the ball. After hitting the ball, let the racket swing obliquely and fall to the left side of the body, while following the court.
Receiving service: prepare to receive the ball, move it into position when it comes, and prepare to swing the ball. When the ball comes, it moves quickly to occupy the position. Swing hitting is a fast volley ball style of play. Get back in position and prepare for the next shot.
Tennis court: divided into grass, land, hard ground and plastic limbs. The doubles court is 23.77 meters long and 8.23 meters wide. The column height is1.07m, and the net center height is 0.91.4m. ..
Tennis exercise method
Personal exercises: moving exercises, hitting the ball against the wall, serving the ball against the wall, etc.
Pairing exercises: serve and catch exercises, volleyball exercises, competition exercises, etc.
curative effect
Middle-aged people choose tennis, which is a good way to relax, keep fit and adjust their spirits. Exercise regularly where conditions permit, generally 2-3 times a week for about 30 minutes each time, which can achieve good fitness results.
Tennis knowledge: tennis competition rules and related rules
match
Tennis matches are divided into singles and doubles. The player hit the ball over the net with a tennis racket and fell into the opponent's court. The goal of each player is to try his best to hit the ball on the other side's court. It was like this once, until one side hit the ball out of bounds or missed it.
service
Before the official game, it is necessary to determine who will serve first. Throughout the game, players from both sides took turns serving. Before serving, the server should stand in the area between the end line, the midpoint and the assumed extension line of the sideline. The serve should go over the net and land on the opposite service court. At the beginning of each game, serve from the end line of the right area first, and then serve from the left area after winning or losing one point. And so on. Usually serve is to throw the ball in any direction in the air and hit the ball with a racket before it hits the ground; However, it can also be taken under the armpit.
breakdown
If the ball falls outside the opponent's service area, such as the ball is out of bounds or touches the net, it is called a mistake and the server serves again. A ball that falls on the boundary is counted on the line. If you miss the serve twice, it's called double fault, and the opponent wins one point. If the server leaves the original baseline when serving, it is also a mistake. If the serve touches the net, but the ball still falls into the opponent's service area, it is a heavy serve.
bureau
The score at the beginning of each game is 0:0, and the score in the first game is 15. Therefore, if the server wins this score, the score becomes 15:0, and if the receiver wins this score, the score is 0: 15 (the score of the server is given before the colon). The player's second goal is 30, followed by 40 (historically these numbers represent 1/4 hours, that is,15,30,45, but 45 was later changed to 40). If the opponent has only 30 players or less, then the next ball will win the game, because in each game, at least 2 points more than the opponent can end the game. If both players reach 40, the game is called a tie at the end. With the arrival of the next point, the first player will try his best to lead by 2 points to win the game. At the same time, the chasing opponent also tried to equalize the score and reach the end of the game. The leading player won the next point and won the game.
plate
If the opponent is at least two games behind, then the player who wins six games first wins one game. However, if this set is 6:5, then both sides will have to play another game. If the first one wins, that is, the score of the set is 7:5, the first one wins the set. However, if another player equalizes this set to 6:6, it will be decided by the tiebreaker who will win.
match
In three games, the one who wins two games first wins, that is, two wins in three games; In five sets of games, the winner is the first to win three sets, that is, three wins in five sets. A decisive game.
(deciding game): In the deciding game, the side that should have talked about serving serves the first point, then the other side serves the second and third points, and then both sides serve the second points in turn. If the player who scores 7 points first leads his opponent by at least 2 points, he wins the game. The venue will be changed every 6 points and the end of the deciding game. However, there are exceptions. If the game is long, it is agreed in advance. There is no tie breaker, only two more games can win the game.
Other rules
Any ball that falls on the line is considered a foul ball.
In addition to serving, the ball that touches the net and falls into the correct area of the court after touching the net is valid. When the player returns the ball, he can hit the ball around the net and fixtures, and even hit the ball at the top of the net. As long as the ball finally lands in the right place on the opponent's court, it is a good ball. When serving, the opponent must land once before hitting the ball. At other times, when you return the ball, you can do it once or not.
After the odd-numbered innings of each game, the athletes of both sides can have a short rest and then switch venues to continue the game.
You will get points when:
1. The ball hit the body.
Hit the ball over the net
3. The player's hand or any part of his body touches or crosses the net.
Site and equipment
space
A tennis court for singles is 23.8 meters (78 feet) long and 8.2 meters (27 feet) wide. If it is widened 10.97 meters (36 feet), it can be used for doubles. The net divides the court in two. The so-called service line is a line 6.4 meters (2 1 foot) away from the net. The net in the middle is 9 1.4 cm (3 feet) high. In Sydney, the service hotline will be connected to an electronic monitor to show when there is a service error.
ball
In order to slow down the service speed and prolong the game time, there have been rumors that the size of tennis should be increased. However, the Olympic balls still take this as the standard size: the diameter is between 6.54 1 and 6.858 cm, and the weight is between 56.7 and 58.5 g. When the ball falls on the concrete floor from a height of 254 cm, it should be able to rebound between 134.62 and 147.32 cm.
racket
The weight of the racket is not limited, but the length cannot exceed 73.66 cm and the width cannot exceed 3 1.75 cm.
Game form
The top 16 players are called seed players, and they should be grouped as reasonably as possible so that these seed players and players from the same country will not meet prematurely in the competition; Similarly, the top eight seed players in doubles are selected according to this principle. Like most competitions, the Olympic tennis tournament is also a knockout. Once the match fails, it will be eliminated. Except for the men's doubles final, there are at most 5 sets and at most 3 sets. In the last four groups of players, the semi-final winner went on to win gold and silver medals, and the semi-final loser won bronze medals.
court
There are four main types of tennis courts used in international tennis competitions.
lawn
The grass court is generally natural grass, and the turf should be evenly distributed. The construction cost and maintenance cost of this site are very high, and it is not easy to maintain, and it is gradually replaced by other kinds of sites or artificial grasslands. Because the grass surface is smooth, the ball bounces low and fast on it, which is suitable for players who hit the ball flat. Lawn courts are very common in Britain and Australia, and they are also chosen for Wimbledon championships.
ground
Mud court, also known as clay court, is the most common tennis court in Europe because of its low cost and convenient maintenance. The clay court is used in the French Open.
hard ground
2003 US Open, hard court. The hard court is coated with multiple layers of plastic or rubber on the ground, so that the field has clear partitions of different colors. Moreover, this kind of venue is easy to maintain and quite durable. The US Open was changed from muddy ground (1976-77) to hard ground; The Australian Open has also changed from grass (1985 and before) to hard ground. Although both American and Australian courts use hard courts, there are still some differences between them: the US Open is harder than the Australian Open, so the American court is faster and closer to the grass court, while the Australian court is relatively slower and closer to the clay court.
carpet
Carpet courts are made of plastic materials, which can be laid on the ground like carpets to become tennis courts and can be put away when not in use. Often use indoor venues.
Professional tennis
Players who specialize in tennis are called professional tennis players. Generally, a tennis player began to practice tennis when he was a teenager, so he can participate in some junior group competitions. When he is 16 to 18 years old, he will become a professional player and participate in professional tennis competitions.
Tennis tournament
Famous tennis events include four Grand Slams, Davis Cup, Tennis Masters Cup, Tennis Masters Series, Olympic Tennis Competition and so on.
grand slam tennis
The four Grand Slams are the four most important events in the annual tennis tournament, namely the Australian Open, the French Open, the Wimbledon Open and the US Open.
Time, place and venue
1 month Australian Open Melbourne, Australia's ace rebounder (hard court)
May-June French Open, Paris, French mud.
June-July London, Wimbledon Championship, English Lawn.
September US Open new york Hard Court (Decotov)
Tennis masters series
Tennis Masters Series is an important men's tennis event sponsored by Tennis Professionals Association. Its score is lower than that of Grand Slam, but higher than other tennis events. The Tennis Masters Series has 9 races, and the Tennis Masters Cup is also held at the end of the year. The nine events are arranged in chronological order: Pacific Life Open (California, USA), NASDAQ 100 Open (Florida, USA), Monte Carlo Masters (Monte Carlo, Monaco), Telecom Italia Masters (Rome, Italy), Hamburg Masters (Hamburg, Germany), Rogers Cup (Montreal or Toronto, Canada), Southwest Consortium Masters (Ohio, USA) and Madrid Masters (Madrid, Spain)
Professional tennis organization
Related organizations include International Tennis Federation (ITF), Tennis Professional Association (ATP) and Women's Tennis Federation (WTA).