Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan.
Department of Sport Performance, National Taiwan University of Sport, Taichung, Taiwan.
Chin J Physiol. 2022 Jan-Feb;65(1):46-50. doi: 10.4103/cjp.cjp_99_21.
Carbohydrate mouth rinsing (CMR) potentially affects the interval training performance of taekwondo athletes. This study explored the effect of CMR on vertical jump, kicking speed, and fatigue index before and after simulated taekwondo competition. In a crossover experimental design, 13 trained taekwondo athletes were randomly divided into the CMR and control trials. After warming up, the participants used 6.6% maltodextrin (CMR trial) or mineral water (control trial) to rinse their mouth. Next, the participants underwent tests of vertical jump, kicking speed, and maximum number of kicks. After the tests, the participants rinsed their mouth again, followed by using Wingate testing bikes for 5-s sprint and 25-s rest to simulate taekwondo competitions. Four repetitions were performed in each round for 2 min for a total of three rounds. The results revealed that the fatigue index of the participants in the CMR trial before and after the simulated competition was significantly lower than that of the control trial. However, the two trials differed nonsignificantly in their performance in vertical jump, kicking speed, and the simulated competition. Overall, the study results indicated that CMR reduces the fatigue index but no change was observed in performance for vertical jump, kicking speed, and the simulated competition of trained taekwondo athletes.
碳水化合物漱口（CMR）可能会影响跆拳道运动员的间歇训练表现。本研究探讨了 CMR 对模拟跆拳道比赛前后垂直跳跃、踢腿速度和疲劳指数的影响。采用交叉实验设计，将 13 名训练有素的跆拳道运动员随机分为 CMR 和对照组。热身结束后，参与者使用 6.6%麦芽糊精（CMR 组）或矿泉水（对照组）漱口。然后，参与者进行垂直跳跃、踢腿速度和最大踢腿次数测试。测试后，参与者再次漱口，然后使用测功自行车进行 5 秒冲刺和 25 秒休息，以模拟跆拳道比赛。每轮进行 4 次，每次 2 分钟，共 3 轮。结果显示，模拟比赛前后 CMR 组参与者的疲劳指数明显低于对照组。然而，两组在垂直跳跃、踢腿速度和模拟比赛中的表现差异不显著。总体而言，研究结果表明，CMR 可降低疲劳指数，但对训练有素的跆拳道运动员的垂直跳跃、踢腿速度和模拟比赛表现无明显影响。
