The effect of Caffeine Mouth Rinsing on physical performance in male karateka

Background and purpose: Caffeine is one of the most popular and widely consumed drinks in the world. Its main source is naturally found in coffee beans, but it is also found in other plants such as tea leaves, guarana berries and cocoa beans. Rinsing the mouth using a caffeine solution without swallowing is a new method that increases physical and cognitive performance without passing through the digestive system. Considering the involvement of aerobic and anaerobic systems in karate, the purpose of this research is to investigate the effect of consuming a The effect of caffeine solution on aerobic, anaerobic and agility of karateka men.
Materials and methods: For this purpose, 12 club-level karate men with a training history of at least two years were voluntarily studied in a crossover, balanced, randomized and double-blind study. Subjects appeared at the gym at 7:30 in the morning, fasting. After warming up the body and mouthpiece with a caffeine solution (25 ml of water with 600 mg of caffeine) or a placebo (25 ml of empty water), they participated in the test. First, 10 minutes of dynamic warm-up including walking and dynamic stretching movements were performed, then the Ili test. noise to measure the athlete's agility, rest test to measure anaerobic power, special karate aerobic test, in which subjects hit the punching bag consecutively in the guard position. At the time of recycling, they were moving like a real conflict. The test ended when the subject was no longer able to continue the strokes. In this case, the time was kept constant and the obtained number of fatigue time and test phase was recorded. Three minutes of active rest were included between each of the tests, and at the end, the Borg test was performed to measure the athlete's fatigue. The participants experienced both caffeine mouthwash and placebo conditions. Statistical analysis was reported using paired t-test and SPSS software version 24.
Results: Swirling caffeinated mouthwash has a significant effect on agility (P=0.002), fatigue index (P=0.016) and Borg scale (P=0.021) in male karateka compared to placebo conditions. But it has no significant effect on aerobic power (P=0.167), maximum anaerobic power (P=0.568), minimum anaerobic power (P=0.650) and average anaerobic power (P=0.648).
Conclusion: In a general conclusion, it can be said that swilling caffeinated mouthwash containing 25 ml of liquid without sweetener and 600 mg of caffeine has a significant effect on the agility and fatigue index, but on the anaerobic power and aerobic power index of karate men. Ka has no significant effect.