Exercise Physiology Laboratory, Camilo José Cela University, 28692 Madrid, Spain.
Performance and Sport Rehabilitation Laboratory, University of Castilla La Mancha, 45071 Toledo, Spain.
Nutrients. 2017 Sep 19;9(9):1033. doi: 10.3390/nu9091033.
The aim of this study was to determine the effect of caffeine intake on overall basketball performance in experienced players. A double-blind, placebo-controlled, randomized experimental design was used for this investigation. In two different sessions separated by one week, 20 experienced basketball players ingested 3 mg of caffeine/kg of body mass or a placebo. After 60 min, participants performed 10 repetitions of the following sequence: Abalakov jump, Change-of-Direction and Acceleration Test (CODAT) and two free throws. Later, heart rate, body impacts and game statistics were recorded during a 20-min simulated basketball game. In comparison to the placebo, the ingestion of caffeine increased mean jump height (37.3 ± 6.8 vs. 38.2 ± 7.4 cm; = 0.012), but did not change mean time in the CODAT test or accuracy in free throws. During the simulated game, caffeine increased the number of body impacts (396 ± 43 vs. 410 ± 41 impacts/min; < 0.001) without modifying mean or peak heart rate. Caffeine also increased the performance index rating (7.2 ± 8.6 vs. 10.6 ± 7.1; = 0.037) during the game. Nevertheless, players showed a higher prevalence of insomnia (19.0 vs. 54.4%; = 0.041) after the game. Three mg of caffeine per kg of body mass could be an effective ergogenic substance to increase physical performance and overall success in experienced basketball players.
本研究旨在确定咖啡因摄入对经验丰富的篮球运动员整体表现的影响。采用双盲、安慰剂对照、随机实验设计进行了此项研究。在相隔一周的两次不同的试验中，20 名经验丰富的篮球运动员摄入了 3 毫克/公斤体重的咖啡因或安慰剂。60 分钟后，参与者进行了以下序列的 10 次重复：Abalakov 跳跃、变向加速测试（CODAT）和两次罚球。之后，在 20 分钟的模拟篮球比赛中记录了心率、身体冲击和比赛数据。与安慰剂相比，咖啡因摄入增加了平均跳跃高度（37.3 ± 6.8 对 38.2 ± 7.4 厘米； = 0.012），但并没有改变 CODAT 测试的平均时间或罚球的准确性。在模拟比赛中，咖啡因增加了身体冲击的次数（396 ± 43 对 410 ± 41 次/分钟； < 0.001），而没有改变平均或峰值心率。咖啡因还增加了比赛期间的表现指数评分（7.2 ± 8.6 对 10.6 ± 7.1； = 0.037）。然而，在比赛后，运动员表现出更高的失眠发生率（19.0 对 54.4%； = 0.041）。对于经验丰富的篮球运动员来说，每公斤体重摄入 3 毫克的咖啡因可能是一种有效的促进身体表现和整体成功的物质。
