Why Are World Cup Players Spitting Their Drinks?

Live Science | 7/12/2018 | Staff
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Close watchers of this year's World Cup may have noticed players engaging in an odd practice: They'll take a swig of liquid, but instead of swallowing, they'll spit it out.

Indeed, both England's captain, Harry Kane, and Portuguese star Cristiano Ronaldo have been seen expelling liquid from their mouths during matches, according to The New York Times.

Spitting

So, what's up with all the spitting?

While it's unclear exactly why any given player may need to swig and spit, some players may be practicing what's known as "carb rinsing," the Times said.

Practice - Solution - Mouth - Seconds - Practice

This practice involves swishing a carbohydrate solution in your mouth for about 5 to 10 seconds and then spitting it out. Although the practice may look gross, some studies suggest that carb rinsing boosts athletic performance during high-intensity activities that last about 1 hour.

Overall, review studies suggest that carb rinsing may provide a small performance benefit — around a 2 to 3 percent performance boost — said Dr. Sourav Poddar, a sports-medicine physician at UCHealth in Denver. This is about the same boost people get from actually swallowing a carbohydrate solution during endurance exercise, Poddar noted.

Carbohydrate - Liquid - Athletes - Issues - Example

But by not swallowing the carbohydrate liquid, athletes may avoid some gastrointestinal issues;for example, if the drink...
(Excerpt) Read more at: Live Science
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