Effects of Energy Drink on Repeated Sprint Performance and Cognitive Function in Athletes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 12
- 试验地点
- 1
- 主要终点
- Repeated Sprint Performance
研究概览
简要总结
Energy drinks are often used by athletes before competitions to enhance their performance. Recent research has pointed out that the performance effects of select ingredients have been studied individually but not in combination with caffeine. Therefore, this study is designed to investigate the effects of caffeine, anserine, and elderberry on cognitive function and repeated sprint performance of athletes during a high-intensity exercise protocol.
A double-blind, randomized crossover design will be employed. Three types of supplements will be tested: placebo, caffeine (220 mg), and an energy drink containing 220 mg caffeine, 288 mg anserine, 400 mg elderberry, and 660 mg of a vitamin-mineral mixture. Twelve college athletes will be recruited to complete repeated sprint tests on a cycle ergometer until exhaustion and to undertake a series of cognitive tasks during exercise.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Healthy adults aged 18-25
- •Currently enrolled college student
- •Active members of a collegiate wrestling team (college wrestlers)
- •Engaged in regular wrestling training
- •Willing and able to provide written informed consent
- •Agreed to maintain their usual diet and training frequency during the study period
排除标准
- •Individuals with known caffeine sensitivity
- •Any existing health condition that may interfere with high-intensity exercise (e.g., cardiovascular, metabolic, or neurological disorders)
- •Inability or unwillingness to follow study instructions
研究组 & 干预措施
Placebo Group
Participants in this group received a placebo supplement that contained no active ingredients.
干预措施: A non-active placebo supplement. (Dietary Supplement)
Energy Drink Group
Participants in this group received an energy drink containing 220 mg of caffeine, 1800 mg of anserine extract, and 400 mg of elderberry extract.
干预措施: Energy Drink (Dietary Supplement)
Caffeine Group
Participants in this group received a caffeine supplement containing 220 mg of caffeine.
干预措施: Caffeine (Dietary Supplement)
结局指标
主要结局
Repeated Sprint Performance
时间窗: From second to fourth weeks, 30 minutes after the participants consumed the supplement.
Participants completed a repeated sprint test on a cycle ergometer after supplement intake and 30 minutes waiting. The test involved multiple 10-second maximal sprints with 20-second passive recoveries, continuing until fatigue (cadence \< 70 rpm for over 3 seconds). During the test, the resistance was set at 0.8 Nm/kg body weight. Total power output during repeated sprint performance was the primary outcome.
次要结局
- Colour drop performance- executive function(From the fifth -seventh weeks, 30 minutes after the participants consumed the supplement.)
- Squares performance- spatial working memory(From the fifth -seventh weeks, 30 minutes after the participants consumed the supplement.)
- Schulte grid performance- attention(From the fifth -seventh weeks, 30 minutes after the participants consumed the supplement.)
研究者
Chien-Wen Hou
professor
University of Taipei