One of the biggest mistakes amateur table tennis enthusiasts make in playing table tennis is to stand too straight and have too high a center of gravity. So much so that some experienced masters can estimate their approximate table tennis level by looking at their opponent's ready posture during the game. Standing straight and straight, it is certain that the level of table tennis is limited; on the contrary, people who are squatting very low and hunched over must be careful to deal with, and there must be some professional foundation.
Why do you have to squat down to play table tennis and lower your center of gravity? This principle borrows from the saying: "Man has to bow his head under the eaves" to grasp its essence. Of course, what is borrowed here is the literal meaning, bowing down so as not to touch the eaves. Deep understanding is that "to bow one's head is to harmonize oneself with the objective environment and turn the unfavorable environment into a favorable force." ”
Back to the question of "playing table tennis and squatting down to lower the center of gravity", let's talk about the specific objective environment. Table tennis is played on a smooth platform with a length of 274 cm, a width of 152.5 cm and a height of 76 cm, on which there is also a net with a height of 15.25 cm. The criterion for winning a ball is that you hit the ball on the opposing half of the table opposite the net, and the opponent does not return the ball to his own half of the table.
This objective table tennis environment restricts the use and play of all table tennis techniques. Whether it is Deng Yaping, who is 1.55 meters tall, or Yao Ming, who is 2.26 meters tall, as long as he plays table tennis, he must abide by the height, area and height of the net above the table tennis table. The ITTF will certainly not increase the height of the table tennis table because Yao Ming is too tall.
In order to maximize the number of points and lose fewer points, both players who play table tennis will control the table tennis flight height just over the net, that is, the height of the table is 76 cm plus the height of the net is 15.25 cm, and the total height is 91.25 cm.
At the same time, in order to improve the threat and speed up the flight speed of the table tennis, the batting force is mainly forward. To create a mesh arc, the swing path is a back-down to front-up arc.
In this way, it can also be calculated that the approximate minimum swing height is 76 cm of the table height minus the width of the racket 15 cm, which is 61 cm; the approximate maximum swing height is 91.25 cm of the table plus the height of the net plus the width of the racket is 15 cm, which is 106.25 cm. Of course, this is a rough estimate of the height, specific to each person's habits and characteristics will be different. This is just to illustrate the necessity of squatting to play table tennis.
The reasonable range for playing table tennis swings has been calculated above, which is about 61 cm to 106.25 cm. Take a person with a height of 1.75 meters as an example, the distance of 61 cm is about ten centimeters from the ground to the knee, and the tip of the finger of the person standing up straight and his hands are on both sides of the body cannot reach this position; the distance of 106.25 cm is about ten centimeters from the ground to the top of the navel, which is about the same as the position of the elbow joint when the person stands straight. If the person swings his forearm up and down with the elbow joint as the center, the minimum height is 65 cm and the maximum height is 160 cm (about the position of the ear). Obviously, there is a very big difference from the reasonable range of playing table tennis swings.
Put aside the factors that favor the body's rapid movement. Just from the range of reasonable shots, you must also squat down and lower your center of gravity to swing the bat. Interested golfers can draw a height of 61 cm to 106 cm on the wall, crouch down and try it, which is actually your reasonable batting height, at least not too much difference.