Hsu Tzu-Yuan, Hsieh Meng-Hung, Shiu Yi-Jie, Chiu Chih-Hui
Management Doctoral Program, Daye University, Changhua 515, Taiwan.
Department of Physical Education, Tunghai University, Taichung 407, Taiwan.
Nutrients. 2025 Jan 2;17(1):167. doi: 10.3390/nu17010167.
(1) Background: Carbohydrate mouth rinsing (CMR) stimulates the central nervous system and improves motor control. However, no studies have examined the effects of CMR on softball batting performance. The purpose of this study was to investigate the effect of CMR on softball batting performance. (2) Methods: Fifteen trained female collegiate softball players (age: 20.6 ± 0.9 years; height: 159.5 ± 5.2 cm; body weight: 58.1 ± 6.9 kg) completed two trials in a randomization crossover trail, in which they rinsed their mouths for 20 s with 25 mL of either 6.4% maltodextrin (CMR) or a placebo (PLA). After rinsing, the Posner cueing task and grip force, counter-movement jump (CMJ) and batting tests were performed in sequence. A tanner tee was utilized to hit five sets of five balls at a time, with a minimum 3 min rest between sets. The batting test recorded the average exit velocity, maximum exit velocity and launch angle consistency. The standardized standard deviation (SD) for launch angle represents the standardized variability. (3) Results: The consistency of the launch angle of the CMR trial was significantly greater ( = 0.025; Cohen's d = 0.69) than that of the PLA trial. There were no significant differences in the Posner cueing task, grip strength, vertical jump, or exit velocity. (4) Conclusions: The findings of this study indicate that CMR enhances the launch angle consistency of all-out-effort batting, but does not influence the exit velocity of softball hitting.
(1) 背景：碳水化合物漱口（CMR）可刺激中枢神经系统并改善运动控制。然而，尚无研究考察CMR对垒球击球表现的影响。本研究的目的是调查CMR对垒球击球表现的影响。(2) 方法：15名训练有素的大学女子垒球运动员（年龄：20.6±0.9岁；身高：159.5±5.2厘米；体重：58.1±6.9千克）在随机交叉试验中完成两项试验，她们用25毫升6.4%的麦芽糊精（CMR）或安慰剂（PLA）漱口20秒。漱口后，依次进行波斯纳线索任务、握力、反向助跳（CMJ）和击球测试。使用击球座每次击打五组，每组五个球，组间至少休息3分钟。击球测试记录平均出射速度、最大出射速度和发射角度一致性。发射角度的标准化标准差（SD）代表标准化变异性。(3) 结果：CMR试验的发射角度一致性显著高于PLA试验（ = 0.025；科恩d值 = 0.69）。在波斯纳线索任务、握力、垂直跳跃或出射速度方面无显著差异。(4) 结论：本研究结果表明，CMR可提高全力击球时的发射角度一致性，但不影响垒球击球的出射速度。
