Random article ( of 1091 ) Latest updates

User Tools

Site Tools


content:life_sciences:human_body:effort_grunting

Wikenigma - an Encyclopedia of Unknowns Wikenigma - an Encyclopedia of the Unknown

Effort grunting

An 'Effort Grunt' is the name given to the short gruff exhalation noises which people often make when exerting themselves.

The noises are not restricted to humans, and are heard in many other primate species (ref. ) - suggesting an early evolutionary trait.

There have been many attempts to explain the phenomenon. Some researchers suggesting that the grunts may somehow help with power efficiency - perhaps by increasing oxygen absorption. For example, some studies have shown that grunting can increase the speed of tennis serves (ref.). Whereas other studies with weight lifters showed that grunts don't appear to have any effect.(ref.)

Another theory is that the grunts date back to communications in a pre-speech time of human evolution - with a general meaning along the lines of "I need help with this" (ref.)

Note : There are suggestions that in certain competition sports, deliberately exaggerated grunts can be used to attempt to 'intimidate' opponents.

THIS WEBSITE DOES NOT USE TRACKING, ADVERTISING, OR ANALYTICAL COOKIES OF ANY KIND. All essential cookies (for login status etc) are automatically deleted at the end of the session full details here

Show another (random) article

Suggestions for corrections and ideas for articles are welcomed : Get in touch!


Further resources :