The significance of volleyball

"Life lies in movement", and the beauty of life lies in that it is always in movement, and movement just condenses this beauty. It embodies strength and skill, speed and beauty at the same time, giving people unlimited inspiration and motivation.

There will be differences in gender, age, occupation, experience, interests, opinions or political views between people. However, when dealing with sports stars, people will break boundaries and national boundaries, cheer for their victory with tolerance and generosity, and get satisfaction from their wonderful performance. The competition in the sports field is fierce and ruthless, but both winners and losers pursue the goal of unity, progress, peace and friendship all over the world. According to statistics, as many as 3.5 billion people watched the opening ceremony of the 1992 Barcelona Olympic Games in various ways, accounting for 68% of the world's total population! The charm of sports is endless, which can't be replaced by any other force.

Vigorously developing sports can not only enhance people's physique and improve people's health level, but also cultivate people's healthy and reasonable lifestyle and create a civilized and harmonious social environment, which is of great significance for building a well-off society in an all-round way, realizing the rise of the Central Plains and building a harmonious Central Plains. The vigorous development of sports and the excellent achievements made by athletes will greatly inspire people and enhance national identity.

China table tennis team in the 1960s, China women's volleyball team in the 1980s and Ma Jiajun in the 1990s all gave great encouragement to all aspects of our country in different periods. Chinese people all over the world have tasted the pride of Zhong Ping, a member of the world's national forest, who holds his head high and lifts his eyebrows, rejuvenating China.

Among them, volleyball is the most brilliant, easy to learn, deeply loved by everyone, and is being promoted throughout the country.

Volleyball is a collective, offensive and defensive sport in which two teams with the same number of players hit the ball into the opponent's court from the net according to the rules, without making the ball fall on their own court.

College students should learn the basic theoretical knowledge and skills of volleyball, understand the culture of volleyball, understand the characteristics and exercise value of volleyball, master simple technical principles, and gradually improve the movement quality of basic skills and the ability to comprehensively use the basic skills they have learned. Be able to participate in volleyball competition, and use the most basic volleyball tactics in the competition, understand the most basic rules of volleyball competition, and know how to appreciate volleyball competition. When using volleyball skills and tactics, we should exercise and cultivate students' judgment, analysis, adaptability and collectivism spirit of unity, cooperation and tenacious struggle.

The characteristic of volleyball is that athletes are required to have a keen sense of all kinds of changes on the field. For example, when an athlete completes many complicated movements on the field, the movements should be very accurate, which depends to a great extent on the accurate analysis of muscle sensation by the human motion analyzer. And volleyball is closely related to physical and mental health, and its significance mainly includes the following points:

First, improve health and physical fitness.

Volleyball is both competitive and entertaining, and people of different ages, genders and technical levels can participate in activities or competitions. Regular participation in volleyball can not only improve the functions of the central nervous system and internal organs, but also improve people's strength, speed, bounce, agility, endurance and other special physical fitness and sports ability. In a word, regular participation in volleyball matches can make people improve their health and physical fitness in excitement and pleasure.

Second, cultivate and exercise good psychological quality.

Regular participation in volleyball training or competitions will help you learn a lot of means and methods to control your emotions and adjust your psychology, such as how to calm yourself down as soon as possible when you make continuous mistakes, and don't be discouraged; Calm and not discouraged when the score is behind; The key point is that self-confidence that is not soft in attack is to cultivate and exercise their good psychological quality.

Third, cultivate the excellent qualities of diligence, helping others and striving.

There is a special rule in volleyball competition, that is, the ball can't land, and it must go over the net at most three times, so people who participate in volleyball competition should always be ready to make up for the ball that their companions can't catch because of misjudgment or other reasons. In order to give full play to their offensive power, they will not hesitate to run to save the ball and create convenient conditions for the next batter. Therefore, regular participation in volleyball can cultivate people's excellent sports moral style and collectivism spirit of unity and cooperation.

Fourth, cultivate people's information awareness and improve cooperation and adaptability.

In a sense, volleyball is a sport that depends on judgment, especially in modern volleyball competition, accurate judgment has become one of the winning factors. The basis of judgment is to look at all directions and listen to all directions. By observing the movements of opponents and companions, the sound of hitting the ball, the layout of the venue, etc. He can predict what will happen and make a quick decision. Volleyball competition is also a ball game won by collective cooperation, and the exertion of individual strength is often realized on the premise that peers exert their strength. Therefore, athletes should cooperate with each other on the court and constantly observe the intentions of their peers in order to cooperate tacitly.

It can be seen that sports are of great significance. Among them, volleyball has a long history in China, and people of different ages, genders and technical levels can participate in it, so volleyball is more popular in China than other sports.

The benefits of volleyball

1, improve body shape and posture, and regulate spleen and kidney function.

Bouncing in volleyball can not only exercise leg muscles, but also exercise hip muscles well. Playing volleyball with more bounce can improve the hips and make the "S" shape more prominent. People with poor balance can also improve their posture by playing volleyball. Frequent running and jumping is helpful to spleen hematopoiesis; Playing volleyball is not particularly intense, which can not only exercise but also avoid excessive exercise. Proper aerobic exercise helps to replenish kidney yang and maintain vitality.

2. If you are in a good mood, you can find someone to vent, protect your liver, release pressure and adjust your mood.

Volleyball is softer than basketball, but some movements are particularly enjoyable: before serving, the players hit the volleyball hard on the ground, just like practicing iron sand palms. When the palm slaps, the nerve endings of fingers and palms quickly transmit strong stimuli to the brain, and the brain immediately gets excited, releases hormones, releases the soreness of the spine, arms and wrists, and beats for 20 times in a row. Generally, the simple action of moderate pressure (scalp tightening) is equivalent to the effect of 10 back and forth in 500-meter freestyle or basketball.

3, lower blood pressure, reduce the chance of obesity.

In sports, there is often the action of bouncing and spiking, to exercise the muscles of thighs, waist and abdomen, so that the legs are fat-free, the waist is more fit, and the arms will have perfect curves. Because you have to jump often, you should pay attention to controlling your food intake, or you will fall down before jumping!

4. Improve muscle strength, make muscles symmetrical and powerful, and promote the flexibility and coordination of the body.

In volleyball, catching the ball often stimulates the Sanyang Meridian and Yin San Meridian of the arm. When playing volleyball, not only the peripheral nerves of fingers will stimulate the movement, but also the movement of the whole limb will further stimulate the coordination of muscles from head to toe and make a balanced movement everywhere. Playing volleyball can make nervous systems such as inattention and neurasthenia more flexible, and can also receive unexpected adjustment effects. Playing ball can not only exercise, but also improve people's psychological quality. On the court, people with good psychological quality will be flexible and agile.

5. Promote physical growth, improve jumping ability, repair spine and improve cardiopulmonary function.

Volleyball belongs to aerobic exercise, which can not only exercise your explosive power and jumping ability, but also improve your endurance and help your muscles grow. The basic movements of volleyball are crouching, raising your head like a leopard, always ready to catch the ball, running, spiking and stretching defensive movements, which basically cover the movements in Wuqinxi and have a strong development of the spine. But for middle-aged people who are prone to spinal deformation, playing volleyball regularly can repair the spine, reduce the pressure on cardiopulmonary muscles and improve cardiopulmonary function.

6. Avoid passive injuries and control active injuries.

Because the net is separated, the volleyball collision is reduced, the chance of injury is greatly reduced, and the body is not easy to get hurt. Don't use brute force when spiking, play skillfully, and the landing point is more lethal than strength. Warm-up exercise should be in place before the game, and warm up for at least 15 minutes before playing, so as to actively control injuries.

Introduction of volleyball competition rules

The volleyball competition venue is a rectangle of 18m× 9m, with at least 2m open space around and no obstacles at least 7m above the venue. Draw a line in the middle of the court and divide the court into two equal areas. All lines are 5 cm wide. There is a net on the center line of the site. The net is 1 m wide and 9.50m long, and it is hung on two posts outside the stadium. The height of women's net is 2.24 meters, and that of men's net is 2.43 meters. At the junction of the two ends of the net perpendicular to the sideline and the center line, there are 5 cm wide sign belts respectively, and a sign pole with a length of 1.80 m is connected to the outside of the sign belt. The circumference of the ball is 65 ~ 67 cm, the weight is 260 ~ 280 g, and the air pressure is 0.40 ~ 0.45 kg/cm2.

The volleyball match starts with a team serving on the right (1 position) in the back row, and then each team can touch the ball three times (excluding blocking). If the ball hits the ground, an obstacle or a player fouls, it is a dead ball, and the side that caused the dead ball scores a goal. Only when the server wins 1 ball will he get 1 point. If the server fouls, makes mistakes or the receiver wins 1, the receiver gains the right to serve, and its players must rotate 1 clockwise. The first four games adopt a 25-point system, and each team wins at least 25 points and surpasses the other team by 2 points to win 1 game. The official competition adopts the best of five games system, and the deciding game adopts the competition system of 15. After the first team scored 8 points, the two teams switched venues and continued the game to the finish line in the original position order. There was no highest score in the deciding game, and the game went on until the first team scored 2 points.

According to the rules, 1 team at most 12 players, 1 coach, assistant coach and doctor. Players' clothing must be uniform, and there are obvious numbers on the front and back of the coat. The coach can give guidance during time-out and intermission. Only the captain can ask the referee or ask for an explanation of the rules in the game. If the coach or team member behaves unethically, the referee will show a yellow card warning. If they commit a crime again, they will show a red card and punish the team for losing the right to serve or the opponent will get 1 point. If there are serious fouls such as insulting the referee or the opposing player, you will be disqualified from the game or the whole game. Before each game, the coach must give the position table of the playing line-up to the recorder or the second referee, and it cannot be changed. There are 6 people in each team, standing in two rows, from left to right. The front row is in positions 4, 3 and 2, and the rear row is in positions 5, 6 and 1. When serving, both players must stand in the designated position, otherwise they will be sentenced to lose the right to serve or the opposing team will score 1 point. When the game is a dead ball, the coach and captain can ask the referee for a time-out or substitution. Each pause shall not exceed 30 seconds. 1 match, each team can ask for two timeouts. 1 match, the number of substitutions for each team shall not exceed 6 times at most.

Requirements of technical action rules

① Serve: Players who have the right to serve must serve in turn first. Players in the position of 1 will hit the ball within 3 seconds after the referee blows the whistle. After serving, if the ball touches the player on the server's court, the middle goalpost and other obstacles, and the ball falls out of the opponent's bounds or the service fails to reach the net, it is a service mistake and loses the right to serve. Before the team makes a mistake, the server serves continuously.

② Touching the ball: A player can touch the ball with any part of his body, but he is not allowed to stay. In case of catching, holding, pushing and throwing the ball, it is judged as holding the ball. Each team touches the ball at most three times (except blocking). If 1 player touches the ball continuously for more than 1 times (except blocking), it is judged as combo. Two players on the same team touch the ball twice at the same time. However, both players can hit the ball three times after touching the ball at the same time on the internet.

(3) Offensive hitting: directly hitting the ball at the opponent's court is offensive hitting. Front row players can make offensive shots at any height on this field. The players in the back row can only hit the ball in the frontcourt in a way that the world is not higher than the upper edge of the net before the attack line, but they can hit the ball at any height when taking off behind the attack line.

④ Over the net: players are not allowed to hit the ball through the net, but the hitting point is in the court. After the ball leaves the hand, the hand with the ball over the net will not be judged as a net foul. Before the opponent hit the ball, the blocker touched the ball and crossed the opponent's court, and was convicted of a net foul. When the opposing team hits the ball, it is allowed to block in the opposing court.

⑤ Crossing the center line: Any part of the player's body crosses the center line and touches the ground of the opponent's court, which is a foul on the center line. However, if one foot or part of both feet step on the center line and the other part steps on or above the center line, no foul will be awarded. Players can reach out and hit the ball under the net, but they must not interfere with the opposing players.

⑥ Blocking: Only players in the front row are allowed to block individually or collectively. In 1 block, the ball can continuously touch 1 or several pieces of hands, head or any part of the body above the waist, which is counted as 1 block. After blocking, the team can hit the ball three times. After the blocker touches the ball, the ball falls out of bounds and the tentacles are out of bounds. This is a mistake. A formal volleyball match should have 1 referee and 1 referee, 1 recorder and 2 ~ 4 linesmen.

Volleyball competition method

First, the preparation before the game:

The first referee presides over the lottery, and first chooses the right to serve and the ball area.

Second, the start process and stop of the game:

The first referee will stand at the end line of his own field after blowing the whistle, and stand in the original position when blowing the whistle again (the position table filled out before the game).

Third, the score:

A. After one side serves, the other side makes a catch mistake, fouls or the ball falls into the opponent's court, that is, the server scores and continues to serve;

B. If the server serves illegally or out of bounds, the opponent will score and change the service.

4. Suspension and substitution:

Each team has two timeouts and six substitution opportunities in each game. (required when making dead balls)

1, timeout: each team has two timeouts per game; There is a technical pause every 8 minutes in the regular competition.

2. Substitution:

A, the main player can only quit the game once, and when he plays again in the same game, he can only return to the game to replace his player.

B, the substitute can only play once per game, and can replace any main player. The same game can only be replaced by the player he replaces.

Note: The player who started the game is the main force, and the other players are substitutes.