What is the white powder on the hands of players?

At the game scene, we can often see players wearing white powder on their hands. So what are these white powder?

The white powder is actually a substance called chalk powder. Chalk powder is a fine powdery mineral mainly composed of calcium carbonate. There are two main reasons why players put chalk powder on their hands.

Chalk powder absorbs sweat and keeps players 'hands dry. During exercise, the human body secretes a lot of sweat, and the palms are no exception. If the player's palm is wet, it will reduce the contact area between the hand and the ball, which will affect the control of the ball. The hygroscopic property of chalk powder can effectively absorb sweat, prevent hands from slipping off, and improve ball control.

Chalk powder can increase the friction between the player and the ball. Players often need to perform various technical movements such as receiving, passing and shooting during the game, which require the player to have a certain grasp of the friction of the ball. Chalk powder increases the coefficient of friction between the hand and the ball, allowing players to better control the trajectory and speed of the ball.

Of course, there is some controversy along with chalk powder. Some people believe that the use of chalk powder may have a certain impact on the health of players. Chalk powder particles are very fine and easily inhaled into the respiratory tract. Long-term inhalation may cause certain irritation and impact on the respiratory system. In addition, players sweat a lot during the game, and the chalk powder on their hands may mix with the sweat to form chalk stains. Once these stains come into contact with players 'eyes, mouth and other areas, they may also cause discomfort.

The white powder on the players 'hands is actually a kind of chalk powder. It not only absorbs moisture and protects dryness, but also increases the friction between the player and the ball. However, the use of chalk powder also poses certain disputes and safety hazards, which requires players to pay attention to the appropriate amount and keep it clean when using it.