Carbohydrate mouth rinsing has been shown to enhance aerobic exercise performance, but there is limited research with resistance exercise (RE). Therefore, the purpose of this investigation was to examine the effects of carbohydrate mouth rinsing during a high-volume upper body RE protocol on performance, heart rate responses, ratings of perceived exertion, and felt arousal. Recreationally experienced resistance-trained males (N = 17, age: 21 ± 1 years, height: 177.3 ± 5.2 cm, mass: 83.5 ± 9.3 kg) completed three experimental sessions, with the first serving as familiarization to the RE protocol. During the final two trials, the participants rinsed a 25-ml solution containing either a 6% carbohydrate solution or an artificially flavored placebo in a randomized, counterbalanced, and double-blinded fashion. The participants rinsed a total of nine times immediately before beginning the protocol and 20 s before repetitions to failure with the exercises bench press, bent-over row, incline bench press, close-grip row, hammer curls, skull crushers (all completed at 70% one-repetition maximum), push-ups, and pull-ups. Heart rate, ratings of perceived exertion, and felt arousal were measured at the baseline and immediately after each set of repetitions to failure. There were no differences for the total repetitions completed (carbohydrate = 203 ± 25 repetitions vs. placebo = 201 ± 23 repetitions, p = .46, Cohen's d = 0.10). No treatment differences were observed for heart rate, ratings of perceived exertion, or felt arousal (p > .05). Although carbohydrate mouth rinsing has been shown to be effective in increasing aerobic performance, the results from this investigation show no benefit in RE performance in resistance-trained males.

中文翻译：

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碳水化合物漱口对上身抗阻力运动表现的影响。

碳水化合物漱口已被证明可以提高有氧运动的表现，但对阻力运动 (RE) 的研究有限。因此，本研究的目的是检查在高容量上身 RE 方案期间碳水化合物漱口对性能、心率反应、感知劳累的评级和感觉唤醒的影响。有过娱乐经历的阻力训练男性（N = 17，年龄：21 ± 1 岁，身高：177.3 ± 5.2 厘米，体重：83.5 ± 9.3 公斤）完成了三个实验课程，第一次是熟悉 RE 协议。在最后两项试验中，参与者以随机、平衡和双盲的方式冲洗含有 6% 碳水化合物溶液或人工调味安慰剂的 25 毫升溶液。参与者在开始协议前总共冲洗 9 次，在重复练习卧推、俯身划船、上斜卧推、紧握划船、锤式弯举、颅骨粉碎机（全部在 70 % 最多重复一次）、俯卧撑和引体向上。在基线和每组重复失败后立即测量心率、感知用力的评级和感觉唤醒。完成的总重复次数没有差异（碳水化合物 = 203 ± 25 次重复 vs. 安慰剂 = 201 ± 23 次重复，p = .46，Cohen's d = 0.10）。在心率、感知到的劳累程度或感觉唤醒方面没有观察到治疗差异（p > .05）。尽管碳水化合物漱口已被证明可有效提高有氧运动表现，