A: Badminton with good quality and proper speed is very important for the smooth progress of the game and the interest in fitness. The quality of badminton can be judged from the following aspects: (1) The appearance of badminton should be neat, the skin of the ball holder should be smooth and wrinkle-free, the feathers should be white, the insertion angle should be consistent (2), the feather shaft should be slightly thick and straight, the glue should be uniform, and it should be firm and elastic when held by hand, and it should not be deformed (3), when trying to play badminton, its flight stability is better.
2. Now the speed (weight) sign is set on the badminton barrel, which is 76~79 or 1~4. How to understand it?
A: At present, badminton manufacturers have their own set of standards for the speed (weight) of badminton. Generally, the top cover of the bulb will be marked with: 76, 77, 78, 79 or 1, 2, 3, 4. The smaller the tag value, the slower the ball speed, and the larger the tag value, the faster the ball speed.
3. What does the weight of badminton mean to badminton? How to choose the weight of badminton?
A: Badminton is light and slow, but heavy and fast. Badminton ball is very light, and the speed of badminton depends on the weight of badminton first; Secondly, the temperature, the temperature and the altitude of the playground have great influence on its weight. Generally, when the temperature is high and the humidity is high in summer, or when the waves are big, Badou should choose a lighter badminton. In winter, when the temperature is low, the climate is dry, the humidity is low, or the altitude is low, it is necessary to choose heavier badminton.
Comparison between badminton weight selection and air temperature
Ball 4.74g 76# 1# used at high temperature in summer;
Ball 4.8~4.9 grams 77# 2# The temperature is slightly higher in spring and autumn, and people feel very comfortable. The temperature is around 25 degrees Celsius.
The temperature of ball 5.0 ~ 5.2g 78# 3# is slightly lower in spring and autumn, and the human body feels slightly cold. The temperature is lower than 18 degrees Celsius. The ball 5.3g 79# 4# is about 5 degrees Celsius in winter.
How to choose badminton for competition?
A: There are two small marks on the right service area near the back service line of doubles in the regular badminton court, and the position between them is the badminton ball speed detection area. When checking the ball, hit the ball forward and upward with a low hand outside the end line, and the flying direction of the ball should be parallel to the sideline. The ball that meets the standard speed should fall in the area between 0.53 and 0.99 meters from the outer edge of the opponent's end line (that is, between two small marks).
When testing the speed of badminton, you can ask the athletes for help. Generally, athletes who choose to test the ball speed should not choose particularly strong or weak athletes, but choose male and female athletes with relatively moderate strength to test. After the test, choose a speed (weight) as the game ball. Match balls with the same speed (weight) should be used in the same field.