Caffeine ingestion enhances perceptual responses during intermittent exercise in female team-game players
Caffeine ingestion enhances perceptual responses during intermittent exercise in female team-game players
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DOI：
10.1080/02640414.2015.1052746
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发表时间：
2016-02-16
影响因子：
3.4
通讯作者：
Rutherfurd-Markwick, Kay
中科院分区：
文献类型：
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作者：
Ali, Ajmol;O'Donnell, Jemma;Rutherfurd-Markwick, Kay
我们研究了补充咖啡因对服用相同激素成分的低剂量单相口服避孕药的女性团队游戏运动员的认知表现和知觉反应的影响。十名女性（24 +/- 4 岁；59.7 +/- 3.5 公斤体重；每周 2-6 次训练）参加了一项随机、双盲、安慰剂对照的交叉设计试验。摄入含有 6mg center dot kg(-1) 无水咖啡因或人工甜味剂（安慰剂）的胶囊 60 分钟后，完成 90 分钟间歇性跑步机跑步方案。在运动方案之前、期间和之后以及运动后 12 小时后完成知觉反应（感知用力评分（RPE）、感觉量表（FS）、感觉唤醒量表（FAS））、情绪（情绪状态概况（POMS））和认知表现（斯特鲁普测试、选择反应时间（CRT））。咖啡因摄入显着提高了运动过程中的愉悦感（P=0.008）和兴奋度（P=0.002），并增加了活力（POMS；P=0.007），同时有减少疲劳的趋势（POMS；P=0.068）。在 Stroop (P=0.072) 和 CRT (P=0.087) 测试中，咖啡因摄入显示出降低 RPE (P=0.068) 和改善反应时间的趋势。对于服用低剂量单相口服避孕类固醇 (OCS) 的女性运动员来说，补充咖啡因可以在间歇性跑步活动中增加活力并减少疲劳，从而对感知参数产生积极影响。
We examined the influence of caffeine supplementation on cognitive performance and perceptual responses in female team-game players taking low-dose monophasic oral contraceptives of the same hormonal composition. Ten females (24 +/- 4 years; 59.7 +/- 3.5kg body mass; 2-6 training sessions per week) took part in a randomised, double-blind, placebo-controlled crossover-design trial. A 90-min intermittent treadmill-running protocol was completed 60min following ingestion of a capsule containing either 6mg center dot kg(-1) anhydrous caffeine or artificial sweetener (placebo). Perceptual responses (ratings of perceived exertion (RPE), feeling scale (FS), felt arousal scale (FAS)), mood (profile of mood states (POMS)) and cognitive performance (Stroop test, choice reaction time (CRT)) were completed before, during and after the exercise protocol, as well as after 12h post exercise. Caffeine ingestion significantly enhanced the ratings of pleasure (P=0.008) and arousal (P=0.002) during the exercise protocol, as well as increased vigour (POMS; P=0.007), while there was a tendency for reduced fatigue (POMS; P=0.068). Caffeine ingestion showed a tendency to decrease RPE (P=0.068) and improve reaction times in the Stroop (P=0.072) and CRT (P=0.087) tests. Caffeine supplementation showed a positive effect on perceptual parameters by increasing vigour and a tendency to decrease fatigue during intermittent running activity in female games players taking low-dose monophasic oral contraceptive steroids (OCS).