Institute of Sports Sciences, University of Taipei, Taipei 111036, Taiwan.
Department of Ball Sport, National Taiwan University of Sport, Taichung 404, Taiwan.
Nutrients. 2024 Apr 24;16(9):1256. doi: 10.3390/nu16091256.
(1) Background: This study investigated the effects of caffeinated chewing gum on the basketball-specific performance of trained basketball players. A double-blind, randomized crossover design was employed. (2) Methods: Fifteen participants (age: 20.9 ± 1.0 years; height: 180.9 ± 5.4 cm; mass: 77.2 ± 7.5 kg; training age: 8.2 ± 0.3 years) were recruited and divided into a caffeine trial (CAF) and placebo trial (PL). The participants in the CAF trial chewed gum containing 3 mg/kg of caffeine for 10 min, while those in the PL trial chewed a placebo gum without caffeine. Following a 15 min rest, all the participants completed basketball-specific performance tests. (3) Results: The free throw accuracy for the CAF trial was significantly higher than that for the PL trial (CAF: 79.0 ± 4.31%; PL: 73.0 ± 9.16%; = 0.012; Cohen's = 0.94). Additionally, the CAF trial demonstrated significantly better performance in the 20 m segmented dash (CAF: 2.94 ± 1.12 s; PL: 3.13 ± 0.10 s; < 0.001; Cohen's =1.8) and squats ( < 0.05), and exhibited lower fatigue indexes (CAF: 3.6 ± 1.6%; PL: 5.2 ± 1.6%; = 0.009; Cohen's =1.0). (4) Conclusions: These findings suggest that chewing gum containing 3 mg/kg of caffeine offers moderate-to-large improvements in key performance aspects relevant to professionally trained basketball players.
（1）背景：本研究旨在探究含咖啡因的咀嚼口香糖对接受过训练的篮球运动员专项篮球表现的影响。采用双盲、随机交叉设计。（2）方法：招募了 15 名参与者（年龄：20.9±1.0 岁；身高：180.9±5.4cm；体重：77.2±7.5kg；训练年限：8.2±0.3 年），并将其分为咖啡因试验（CAF）和安慰剂试验（PL）两组。CAF 组嚼含 3mg/kg 咖啡因的口香糖 10min，PL 组嚼不含咖啡因的安慰剂口香糖。休息 15min 后，所有参与者均完成了专项篮球表现测试。（3）结果：CAF 组的罚球命中率显著高于 PL 组（CAF：79.0±4.31%；PL：73.0±9.16%； = 0.012；Cohen's = 0.94）。此外，CAF 组在 20m 分段冲刺（CAF：2.94±1.12s；PL：3.13±0.10s； < 0.001；Cohen's =1.8）和深蹲（ < 0.05）中的表现也更好，疲劳指数更低（CAF：3.6±1.6%；PL：5.2±1.6%； = 0.009；Cohen's =1.0）。（4）结论：这些发现表明，含 3mg/kg 咖啡因的咀嚼口香糖可显著改善职业篮球运动员关键表现方面的中等至较大程度的表现。
