The tennis season is right on us and we love watching it, we have to regulate how much we watch or we'd never get anything else done..We miss Andy Murray but now cheer some of the younger British players, who are working their way up to be the winning players.
Some people don't like the shouting or grunting noise a player makes as they hit the ball.. However there is a science behind the shouting during exertion, it seems that vocalization can enhance muscular force and performance for up to 9 to 12% ! This can be enough to add a meaningful amount of energy to a lift, or speed to a tennis serve, or power to a punch!
There has been lab tests measuring force with or without vocalization. In one classic experiment participants who shouted during an isometric arm flexion produced 12% more force than those who stayed silent.
A more recent study measuring striking force in martial artists, found there was 9% more increase when participants grunted, jumping from 22.g force to 22.2g force per strike.
In tennis the result is equally clear a study of players, with both serve and forehand velocities were significant higher when players grunted! The same was true for isometric force during those strokes. The statistical confidence was essentially perfect, meaning the result wasn't a fluke.
Its all to do with taking in oxygen and using the diaphram and deep abdominal muscles force out the air and add extra force to the punch, stroke or speed.
During my post op physio on my arm, the one physio always used to say, take some deep breaths, fill your body with extra oxygen to help you.. It's something I do all the time now if I have to do something that is going to take a bit more effort!
So cheer on our British tennis players and be glad when they grunt, because it means that little bright yellow ball is going to be the winning stroke... Come on Cam Norrie, come on Emma Raducanu, come on Arthur Fery!!
Do you love watching tennis too?
Chrisxx











