1, clothing
In formal table tennis competitions, athletes are required to wear short-sleeved or sleeveless jerseys, shorts or short skirts. It is also stipulated that the main color of short-sleeved jerseys (except sleeves and collars), shorts or short skirts should be significantly different from the color of competition balls. In the usual practice, just wear clothes that are slightly loose and suitable for playing table tennis according to the climate.
2. Sports shoes
It is best to wear a special table tennis shoes, because it has anti-slip performance and is easy to start when moving left and right. At the same time, it is light and breathable, or soft-soled rubber shoes.
3. Ball socks
You must wear socks in a formal table tennis match. Ball socks are best made of cotton, because they can absorb sweat and prevent slipping.
Table tennis sports equipment
(1) Competition area: the length is not less than 14m, the width is 7m, the height is 5m, and dark baffles with a height of 75cm are set around;
(2) Light source: not less than 5 meters from the ground. The illuminance measured from the height of the table top shall not be lower than 1000 lux, and the surroundings shall be dark;
(3) Table: The upper surface of the table is called "playing table". It is a rectangle parallel to the horizontal plane, with a length of 2.74m, a width of1.525m and a height of 76cm from the ground. The desktop can be made of any material and should have uniform elasticity. Standard size of table tennis table >>
The countertops should all be dark and dull, with a white line 2 cm wide on each side. The line drawn along the 2.74m-long desktop edge is called "edge line", and the line drawn along the1.525m-long desktop edge is called "end line".
The "competition table" shall include the upper edge of the table, excluding the "edge" below the upper edge of the table. The center of the table top is divided into two equal "table areas" by a vertical net parallel to the end line, and each "table area" is called "center line" by a white line with a width of 3 mm parallel to the sideline, which divides the two tables into two equal "half areas" on the left and right;
(4) Net: including net, net hanging rope, net post and clip parts for fixing them on the table. The top of the whole network is 15.25 cm away from the desktop, and the length of the network is 183 cm.
(5) Ball: It should be spherical, with a weight of 2.5g and a diameter of 38mm. White or orange. Made of celluloid or similar materials. There is no elastic limit. At present, ITTF is considering trying out table tennis with a diameter of 40 mm and entrusting China Table Tennis Association to develop and test it.
The research results of Scientific Research Committee of China Table Tennis Association in June 1996 10 show that the forehand smash speed of a ball with a diameter of 40mm and a weight of 2.79g is 17m/s and the pulling speed is 1 16.5 rpm. The forehand smash speed of the ball with a diameter of 40mm and a weight of 2.49g is 15.4m/s and the drawing speed is 105 rpm.
At present, the forehand smash speed of the standard ball is 17.8m/s, and the drawing speed is 133.5 rpm. Experiments show that the speed and rotation speed of large-diameter table tennis are lower than the current standard ball with small diameter; A ball with the same diameter, large weight and elasticity has a higher hitting speed and rotation speed than a light ball;
(6) Racket: The size, shape or weight are not limited. The thickness of the racket bottom plate should be at least 85% of the natural wood. The glue layer of the bottom plate can be a layer of ordinary granular glue, and the particles are outward, and the glue together shall not exceed 2mm；; It can also be sponge glue with inward or outward particles, and the adhesion should not exceed 4 mm
Both sides of the racket, whether covered or not, must be dull, one side is bright red and the other side is black. At the beginning of the game and when a player needs to change his racket during the game, he must show his opponent and the referee the racket he will use. Recommended reading:
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