How to choose volleyball, the characteristics of volleyball and the value of exercise

The characteristics and exercise value of volleyball

First, features:

1. 1.a wide range of mass: volleyballfacilities are simple, the game rules are easy to master. It can be played and trained on the pitch or in an ordinary open space.
2. 2.comprehensive technology: according to the rules, each player must rotate positions, not only in the front row spike and block, but also in the back row defense and catch the ball.
3. 3. skill: the rules stipulate that the ball can not land, hold the ball or combo in the game.
4. 4.fierce confrontation: In volleyball matches, the offensive and defensive transition of both sides is always carried out in fierce confrontation. At the highest level, the rivalry is about. In a game, it often takes six or seven rounds to score a point. The level of super high competition, the more fierce the competition.
5. 5.the duality of attack and defense technology: volleyball is a variety of technologies can score, can also lose points of the project, this situation is more prominent in the decider game, so each technology has the duality of attack and defense, therefore, the technology is required to be both offensive and accurate.
6. 6.strict collectivity: volleyball is a collective game, in addition to serve, are carried out in the collective cooperation. Without strict collective cooperation, it is difficult to play a good personal skill, let alone play a tactical role. The higher the level of the team, the more tight the collective cooperation.

How to choose volleyball

First, volleyball purchase should pay attention to what

1. size: 5, 4, 3 (the larger the number, the larger the volume)

2. color: the color of the ball is a consistent light color, or a combination of colors. The circumference of the ball is 65 to 67 cm and the weight is 269 to 280 g. The internal pressure is 0.3 to 0.325 kg per square centimeter (kg/cm2).

3. hardness: hard volleyball, soft volleyball, gas volleyball

① Hard volleyball: Hard row in the work and material is also divided into two kinds, one is the high foam sewing volleyball, that is, the kind of sewing line, feel comfortable, practice does not hurt hands. There is also a seamless leather volleyball, this ball is relatively hard, practice hands will hurt, the quality is better than the former. Balls filled with rubber or similar materials; The circumference of the ball is 65-67 cm and the weight is 260-280 g.

Soft volleyball: The ball is soft, light weight and low air pressure, so it will not bruise fingers and have a sense of security.

The flight speed of the ball is slower than that of the leather volleyball, so it is not easy to land, and it is interesting to play. Soft volleyball rules and venues are relatively simple, with strong operability.

③ Gas volleyball: The ball is soft, elastic, comfortable and not easy to hurt.

Second, the purchase of volleyball points: material, air tightness

1. What material is good for volleyball

① Leather ball. First charge the ball into the appropriate air pressure, then hold the ball with both hands, the two fingers are about 3 centimeters apart, and press the ball shell with even force to observe the size of the pattern of the ball. The appearance of sesame grain is generally a first-order ball; Jujube grain is secondary or tertiary ball; The ball with the walnut pattern is a four-stage ball.

The leather should be fine, smooth and smooth in appearance. The seams of the ball shell should be neat and even, and the stem should be straight.

② Rubber ball. It is required that the appearance of uniform color, no stains, impurities, bubbles, cloth leakage and other phenomena.

2. Air tightness

Each ball should focus on checking the gas closing performance, and the ball requires no leakage and slow gas. The common inspection method is to inflate the sphere with clear water droplets on the gas mouth, if there are small bubbles, it indicates that the sphere leaks gas.

Three, how to choose volleyball

1. 1. Buy balls produced by regular enterprises.

As volleyball manufacturer, our weierma products and the current well-known brand, these enterprises have standardized production, strict management, pay attention to process and product quality, and their products are relatively stable and reliable.

2. 2. Look at the elasticity of the ball.

When purchasing, the ball can be charged into the appropriate air pressure, find a flat cement and other hard ground, and then hold the ball up, so that the bottom of the ball is at a height of 1.8m, let it fall freely to the ground, watch the elasticity of the ball, good ball elasticity between 1.2m and 1.4m. A ball of poor quality bounces higher or lower.

3. air tightness check

Volleyball should pay attention to check the air tightness, the ball requires no leakage, slow gas and other phenomena. The common inspection method is to fill the ball to a certain pressure with water droplets on the gas mouth, if there are small bubbles, it indicates that the ball leaks.

4. material selection

Leather ball: First charge the ball into the appropriate air pressure, then hold the ball with both hands, the two thumbs are about 3 cm apart, press the ball shell with even force, and observe the size of the pattern of the ball. The appearance of sesame grain is generally a first-order ball; Jujube grain is secondary or tertiary ball; The ball with the walnut pattern is a four-stage ball. The leather should be fine, smooth and smooth in appearance. The seams of the ball shell should be neat and even, and the stem should be straight.

What are the basic skills of volleyball

personalized volleyball basic techniques are divided into six items: preparation and movement, passing, pad, serve, spike, and block.

1. 1. Prepare posture and move:

The ready posture is the body posture that is ready to welcome all kinds of balls. Most of the techniques of attack and defense in volleyball competition are realized after the preparatory posture or the rapid movement, so it is the foundation of the realization of the basic techniques. The role of moving is to get close to the ball, adhere to the status relationship between the good and the ball, and ensure the fairness of the batting measures.

2. 2. Pass:

Passing is a batting technique that is achieved by pushing off the ground and extending the arm with both hands (or one hand) and flicking the wrist fingers. The primary function of passing is to pass the ball to the front row players to attack. Whether a team's attacking talent is fully developed depends largely on the level of the team's passing. In order to seize the upper hand online and make the attack tactics fast and changeable, the setter plays a central role.

3. 3. Ball pad:

It is a technical measure of hitting the ball with the help of pushing off and raising the arms at the distance of one arm from the abdomen, using the front of the forearms of both hands to apply the rebound of the ball. In the competition, the ball is used to receive the serve, catch the spike and catch the return of the ball, which is an important technology for the competition to compete for more points and less points.

4. 4. Serve:

A technique in which a player throws the ball and hits it with one hand from two empty markers on the net into the opponent's court. The serve is the beginning of the game and attack. It is the only technical measure in volleyball technology that is not restricted by others. An aggressive serve can not only directly score, but also destroy and weaken the other side's attack, disrupt the other side's arrangements, and psychologically threaten the other side.

5. 5. Spike the ball:

The technique of using one arm to swing the ball in an arc from the air top to hit the ball over the net inside the two signposts into the opponent's court. Spike is the most active and useful weapon to attack in the competition, so it is the first wrist to score and gain power.

6. 6. Blocking:

A technical move in which the player heads any part of the body above the waist in front of the net, such as the arm and the palm, along the net to obstruct the opponent's shot over the net. Blocking is the first line of defense and an important link of attack.

Blocking can block the other side's powerful spike, weaken the pressure of the back defense, and invent conditions for the structure of the attack. Blocking can directly stop and kill the other side's spike, which is one of the important wrists for scoring and obtaining rights in the competition.