Tennis players make a hullabaloo about when hitting the ball, one is to exert more strength, and the other is to confuse and shock their opponents.

1, make your return more powerful.

Anyone who has had sports experience knows that taking a deep breath and then spitting it out will effectively help to exert strength. For tennis players, waving the racket in their hands during running and shouting at the moment of hitting the ball can release the breath of the chest and abdomen, which can make their shots more powerful and faster.

2. confuse and shock your opponent.

Shouting by hitting the ball in the game can shock the opponent. Some players will also make some "fake actions" by shouting. Originally they shouted, but the other party thought it was a strong return. Who knows, it was just a cut ball, which made the opponent hard to prevent.