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Carbohydrate mouth rinse and strength performance

Summary of a study checking what happens with strength and strength endurance when a female athlete is rinsing their mouth with carbohydrate solution.

Who

16 resistance-trained females with 2 ± 1 years of experience aged 20 ± 1 years (Turkey).

Design

Randomised cross-over design

Low dose

  • mouth rinsing with 6% carbohydrate solution
  • for 10 seconds

Moderate dose

  • mouth rinsing with 12% carbohydrate solution
  • for 10 seconds

High dose

  • mouth rinsing with 18% carbohydrate solution
  • for 10 seconds

Water placebo

  • liters rinsing their mouth with water
  • for 10 seconds

Outcome measures

  • muscular strength: bench press 1RM (1 repetition maximum)
  • muscular ednurance: number of repetitions at 40% of 1RM bench press until failure

Main results

Carbohydrate mouth rinse and strength performance infographic

  • rinsing mouth with different solutions of carbohydrate did not change strength nor strength endurance results in bench press performance.
  • also, heart rate, glucose levels and RPE (rate of perceived exertion) did not differ between the solution of carbohydrate rinse

Take home message

For a clinician
Rinsing mouth with different solutions of carbohydrate did not change strength nor strength endurance results in bench press performance. Also, heart rate, glucose levels and RPE (rate of perceived exertion) did not differ between athletes using different solutions of carbohydrate rinse.
For a parent
Rinsing mouth with different solutions of carbohydrate did not change strength nor strength endurance results in bench press performance.
For an athlete
Rinsing mouth with different solutions of carbohydrate did not change strength nor strength endurance results in bench press performance.

Original article

Karayigit R, Forbes SC, Naderi A, Candow DG, Yildirim UC, Akca F, Aras D, Yasli BC, Sisman A, Mor A, Kaviani M. Different Doses of Carbohydrate Mouth Rinse Have No Effect on Exercise Performance in Resistance Trained Women. International Journal of Environmental Research and Public Health. 2021 Jan;18(7):3463.

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