Characteristics of badminton
Whether it is a regular badminton match or a general fitness activity, we should constantly move, jump, turn and swing on the court, and reasonably use various hitting techniques and footwork to hit the ball back and forth on the court, thus increasing the strength of upper limbs, lower limbs and waist muscles, speeding up the whole body blood circulation of exercisers and enhancing the functions of cardiovascular system and respiratory system. According to statistics, the heart rate of high-intensity badminton players can reach 160- 180 beats per minute, medium-intensity badminton players can reach 140- 150 beats per minute, and low-intensity badminton players can also reach100-/per minute. Long-term badminton can make the heart beat strongly, increase vital capacity and improve endurance, including exercises around the shoulders and cervical spine activities, but excessive exercise will lead to lumbar muscle strain.
For the public.
Suitable for men, women and children, and the amount of exercise can be determined according to age, physique, exercise level and environmental characteristics of the venue. Teenagers can take exercise as an effective means to promote growth and improve physical function. Exercise should be moderate, and the activity time should be 40-50 minutes. Moderate badminton can promote the height growth of teenagers and cultivate their excellent psychological qualities such as self-confidence, courage and decisiveness. The elderly and the infirm can take exercise as a method of health care and rehabilitation. The amount of exercise should be small, and the activity time should be 20-30 minutes, so as to achieve the purpose of sweating, bending over and stretching joints, thereby enhancing the functions of cardiovascular and nervous systems and preventing cardiovascular and nervous system diseases in the elderly. Children can take exercise as an active way of playing, let them run and jump in the sun, let them hit the ball, and cultivate their qualities of not being afraid of difficulties, suffering and unwilling to lag behind. Badminton has a good mass movement foundation and mass popularity in China.
The benefits of badminton
First, playing badminton makes people "think quickly"
Playing badminton can make people practice "nimble eyes and quick hands". The reason is very simple, because when playing badminton, both sides should always observe each other's swing posture and high-speed flying badminton, and their eyes will closely chase high-speed flying objects, so the ciliary muscles of their eyes will constantly contract and relax, greatly promoting the blood circulation of eyeball tissues, thus improving the function of ciliary muscles. Long-term exercise can improve people's visual sensitivity and eye responsiveness.
For ordinary badminton lovers, especially middle-aged and elderly people and people who use their eyes too much, if they can persist in playing badminton, their visual sensitivity will be obviously improved.
Second, play badminton to lose weight.
Playing badminton requires players to constantly move, jump, turn around and swing their feet on the court. It is a full-body sport. Therefore, it can increase the strength of upper limbs, lower limbs and waist muscles, accelerate the whole body blood circulation of exercisers, and enhance the functions of cardiovascular system and respiratory system.
According to statistics, the heart rate of high-intensity badminton players can reach 160~ 180 beats per minute, medium-intensity badminton players can reach 140~ 150 beats per minute, and low-intensity badminton players can also reach100 ~/minute.
Long-term badminton can make your heart jump strongly and your vital capacity increase. At the same time, badminton is also very suitable for dieters.
In badminton, it is necessary to constantly use the strength of the wrist and arm to hold and swing the racket, and to fully move the ankle joint, knee joint, shoulder joint and hip joint, so it is very sufficient to exercise the muscles and joints of the whole body.
Moreover, in the process of picking up and catching the ball, you will constantly bend over and look up, so that the muscles of the waist and abdomen have been fully exercised. Continue to play badminton. After a period of time, you will find that your figure is slim, your muscles are tight and your physical strength is improved.
badminton court
The badminton court is square, and it is best to mark it with white or yellow lines. The lines are all 4 cm wide, and the centerline is 4 cm wide and evenly distributed in the left and right service areas. 4 cm of the width of the front and rear service lines should be within 3.96 meters of the service area, and 4 cm of the width of all other sideline lines should be within the specified range. The net post should be placed at the midpoint of the sideline of doubles, and its height is 1.55 meters on the ground of the departure field. Overview of Badminton Technology Mastering the basic badminton skills comprehensively, correctly, reasonably and skillfully is the basis and key to improve the technical level of badminton. A complete badminton technical action includes five links: judging the position, starting the reaction, moving to the correct position, swinging the ball and preparing for returning. However, in order to describe it conveniently and facilitate training, it is usually customary to introduce it separately into techniques and footwork.
badminton net
Made of high-quality dark natural or man-made fibers, the mesh size is between 15-20mm, the mesh length is 6. 10m, and the width is 0.76m Sew a 75mm folded white cloth edge on the upper edge of the mesh and wear it with rope or steel wire rope. Tighten it properly so that the top of the center of the net is off the ground 1.524m, and the columns at both ends are off the ground 1. 55 meters.
Badminton scoring rules
In the official competition, each game adopts the best of three games system. Each game is 2 1 point, and each goal is scored. The first player to score 265,438+0 points wins. If the score reaches 20 points, either side must win more than 2 points. If there are consecutive draws, the first player to score 30 points will win.
Badminton edge picking rules
Before the start of the game, both sides should decide the venue or serve by throwing edge pickers, and the winner has the right to choose first:
1, serve first:
2. Don't serve first:
3. Select an edge. The loser can choose any remaining items.
Badminton serve foul
Refers to the time interval from the first forward swing or throw of the ball to the moment of hitting the ball. The following phenomena are illegal:
1, over the waist. Any part of the ball is higher than the server's waist at the moment of hitting the ball.
2. pass the exam. At the moment of hitting the ball, the top of the racket does not face down, and the whole racket frame is not significantly lower than the whole hand holding the racket.
3. Not hitting the ball first. At the moment of hitting the ball, it is not the first ball support part that hits the feather.
4. Misconduct. Once the service starts, both parties are in a favorable position. At this time, any player shall not make any fake action, or deliberately hinder the opponent or delay the preparation time of serving or receiving the service, or attempt to take advantage of other improper behavior (the forward swing of the server shall not be interrupted).
5. The service direction is wrong. When serving, the server (including the doubles receiver) does not stand in the service area where he should stand to serve or receive the service.
6. The order is wrong. In doubles, the players who serve or receive the service do not serve or receive the service in the correct order.
7. Foot violation. When serving, the server or receiver shall not step on the line, and any foot shall leave the ground or move. The server fouled and lost the right to serve If the receiver fouls, the server will be penalized. In addition, when badminton serves, the ball falls into the service area by wiping the net, which is still a valid ball.
Badminton game continuity rules
From the first serve to the end of the game, except for the interval allowed by the rules (such as changing venues five minutes before the start of the third inning, etc.). ), the game should be played continuously. In any case, athletes are not allowed to suspend the game or delay the time in order to recover their strength or catch their breath or receive off-site guidance (badminton can only receive off-site guidance five minutes before the start of the third game), and they are not allowed to leave the venue without the permission of the referee. Badminton interferes with the speed of the ball. Without the permission of the opponent and the referee, the player shall not intentionally interfere with the shape of the badminton after hitting the ball to affect its flying speed, or change the ball for this reason.
The Rules of Service Orientation in Badminton Competition
In singles, when the server scores 0 or even, both sides should serve or receive the service in their respective right service areas. If it is odd, they should serve or receive the service in their respective left service court, and this order will not be affected in the rematch.
In doubles, the player standing on the right service court must serve from the right service court at the beginning of each round. Except that the player who serves first at the beginning of each game has only one serve right, both sides have two serve opportunities in each round. Only after the service scores, the positions of the server players are exchanged. If the server makes a mistake, the other player will serve for the second time or change the service without changing places. The receiver always keeps its original position.
Badminton referee rules The referee of badminton competition consists of the referee, the serving referee, the linesman and the scorer.
Badminton referee is the controller of the competition field and the decider of the final referee of the competition facts.
Before the start of the game, the referee is responsible for collecting and filling in the scoring book from the referee (or the head of the referee group) to check whether the height of the net, the placement of the net columns are correct and whether the net is damaged; Whether the position of linesman and serve referee is appropriate; Assemble athletes, choose sides, serve first, on the court; Lead athletes into the competition venues; Choose a game ball.
The game starts from the referee's "0: 0", and the referee wants to score points; Score (players score first, singles-when one side loses the right to serve, report "changing serve" first and then score. Doubles-when the server loses the right to serve for the first time, he will report the "second serve" first and then score); It also depends on whether the ball that falls near the sideline and is not taken care of by the linesman is in bounds; Judging the illegal behavior of the receiver when serving and the illegal behavior of both sides in the game; Pay attention to avoid unnecessary delay in competition time, and have the responsibility to warn athletes that if they continue to delay, they will be sentenced to violation; Correctly implement the choice of "rematch"; If foreign badminton or other people or things invade the competition area and affect the competition, they should be sentenced to "re-serve"; When the game is interrupted unexpectedly, the score at that time should be recorded in the score book, and what is the position of the server and the receiver in doubles and doubles; Correctly implement and remind athletes to change venues.
Badminton serve referee rules focus on the action of the server when serving, and have the final referee power. Usually sitting in a low chair opposite the referee, he is responsible for paying attention to whether the server has stepped on the line with his foot when serving. Whether the hitting moment is "over the waist", "over the hand" or "not hitting the ball first"; There was no misconduct when serving. If there is any violation, you should immediately announce "violation" loudly and ensure that the referee can hear it.
Badminton linesman rules have the final decision on whether the facts on the supervised line are in or out of bounds. For example, if the ball falls out of bounds, no matter how far it is, it will be gestured (arms raised horizontally); If the ball falls within the boundary, point to the landing point on the boundary with the index finger of the right hand; If the line of sight is blocked, you should immediately raise your hand and cross in front of your eyes, and the referee will make a ruling. If the referee doesn't see it, you should re-judge the service, not according to the opinions of the players or the off-site personnel. All gestures should be made sure that the referee can see clearly.