The advantages of playing table tennis are that it can strengthen the brain, prevent myopia, exercise the flexibility of the body, strengthen the body, relieve stress and lose weight.
1, the best mental exercise
When athletes are exercising at the table, the brain should think, analyze and synthesize the information from eyes and ears in a short time, mobilize the visual and auditory sensory organs, the sports center and the muscles of the whole body to work quickly, choose the best hitting point, properly return the ball and practice for a long time, which can greatly improve the reaction speed and comprehensive coordination ability of the nervous system.
Step 2 prevent myopia
Small ball games have the function of training eye movements. When playing table tennis, aiming at table tennis, constantly adjusting and exercising up and down, constantly relaxing and contracting the ciliary muscle and constantly exercising the extraocular muscle can promote the blood supply and metabolism of eyeball tissue and effectively improve the function of the ciliary muscle.
3. Exercise flexibility.
Table tennis can make the muscles of upper limbs, lower limbs and back stronger, the joints more flexible and stable, improve the speed quality and strength quality of human body, and exercise the flexibility and coordination of the body in the process of moving and intercepting the ball.
Step 4 stay healthy
Table tennis can greatly enhance the functions of human circulation and respiratory system. Exercise can make the myocardium strong, increase the heart volume, increase the stroke output, increase the elasticity of blood vessel wall, and reduce the adverse effects of cardiovascular diseases. At the same time, it can exercise respiratory muscles, increase vital capacity and improve respiratory function.
Step 5 relieve stress
Playing ball can make the brain's exciting and inhibiting processes alternate reasonably, and avoid the nervous system from being overly nervous. In daily life, if you are wronged or feel stressed, you might as well play table tennis.
Step 6 lose weight
Table tennis can jump, and playing table tennis 1-2 hours every day can effectively burn the fat in legs, abdomen and arms.
Disadvantages of playing table tennis 1, acute renal failure
Too much table tennis will lead to muscle dissolution, and myoglobin in muscle will form crystals in renal tubules, blocking renal tubules, thus affecting the normal operation of kidneys. However, myoglobin will directly damage the kidney after it flows into the kidney, thus causing symptoms of acute renal failure.
2, affect endocrine
When we have experienced a table tennis activity with a lot of exercise, we often feel very tired and don't want to move, let alone cook dinner. In fact, this phenomenon is caused by endocrine inhibition.
Usually, it is the pituitary gland that controls the secretion of hormones in our body. When playing table tennis excessively, the function of pituitary gland will be inhibited, which will affect the secretion of hormones, thus leading to physical fatigue, poor physical recovery and even cramps.
3. Iron deficiency anemia
In fact, playing table tennis too much can also lead to anemia. Anemia here does not mean that the body bleeds a lot, but is called "sports anemia" in medicine. This is because in the process of playing table tennis, there will be a lot of sweat flowing out of the body. Besides water, there are many metal ions in sweat, such as iron ions in blood. The loss of sweat will lead to the reduction of iron ions in the blood, which will lead to anemia, so it is also called "iron deficiency anemia".
4, joint wear
In fact, the cause of joint wear caused by excessive table tennis is well explained, because all joints of the body actually touch each other during exercise, especially the knee joint.
If you play table tennis too much, the number of collisions between joints will increase, which will inevitably lead to the wear and tear between joints. Once the joints are worn, it is difficult to recover, which is not only very easy to get injured, but also the symptoms of rheumatoid arthritis will appear in rainy days, which is very painful.
5, causing dehydration of the body
When playing table tennis, due to the increase of adrenaline and the coming hot weather, many people will sweat a lot during exercise.
The main component of sweat is water. If you sweat a lot, it will cause the continuous loss of water in your body, leading to dehydration. In summer, due to dehydration, heatstroke often occurs.
Beginners in table tennis skills 1, learn to hold the racket.
Table tennis can be divided into two types: direct grip and horizontal grip. Both methods have their own advantages, mainly depending on the situation. Don't hold the racket too hard, too hard will affect the play, too loose will affect the accuracy.
Straight racket: On the front of the racket, the first joint of the thumb and the second joint of the index finger are clamped on both sides of the racket handle with a moderate distance, and the racket handle is pressed against the tiger's mouth.
Horizontal racket: Hold the racket handle with the palm of your hand, the tiger's mouth is attached to the racket root, the middle finger and the ring finger are bent to hold the handball handle, and the index finger is naturally straight on the back of the racket.
2. Ball sense cultivation
Racket support: practice supporting the ball with a ping-pong bat, which can move slowly, for example, turn around the ping-pong table twice and don't drop it. This improves the feeling of the ball on the racket and moves the racket so that the ball will not fall off.
Racket bounce: If you can keep the ball stable, you can practice racket bounce slowly, two to four at a time, and gradually increase it, so that the elderly and children will be interested in learning the ball. Don't be impatient at this time, pay attention to step by step.
Catch and throw the ball: hold the ball with your left hand and throw it on the ground. After the ball bounces, quickly catch the ball with your left hand and practice in turn, subject to proficiency. If you are left-handed, practice this action with your right hand. Throwing without clapping is divided into low throwing and high throwing. The low throw distance is 20cm to 40cm, and the high throw distance can reach 1 m to 2 m, that is to say, from the palm of the thrower. When pitching, pay attention to the horizontal extension of the left forearm, open the palm and throw the ball with the palm. You can catch it with your racket or left hand to lay a good foundation for practicing table tennis service in the future.
Step 3 swing with your hands
When golfers learn table tennis at the beginning, they will have a stage of practicing swing, and through repeated swing, they will achieve dynamic stereotypes. But for amateurs, most golfers lack this part of training or get correct guidance, so there will be so-called "irregular movements". No matter you are a beginner or an advanced person, you can't ignore one thing-swing with your bare hands.
3. Master the service rules
When serving, the ball should be placed on the palm that does not hold the racket, and the palm should be open and flat. The ball should be static, behind the server's end line and above the game level.
The server must throw the ball up almost vertically with his hands, and must not make the ball rotate. Without clapping his hands, the ball will rise not less than 16 cm after leaving the palm of his hand.
When the ball falls from the highest point of throwing, the server can hit the ball, so that the ball first touches its own table, then crosses or bypasses the net, and then touches the table of the receiver.
4. Pay attention to the power of playing.
When it comes to the power of playing, people often think of the consequences of afterburner: either the ball flies out of bounds or the ball bounces too high. But in fact, the service is short, the ball is short, the rotation is low and the position is good; Serving a long ball, the ball is long, urgent, turns and falls on the left and right corners, which embodies the artistry and technicality of table tennis.