An Evaluation of the Heart Rate, Blood Pressure and Repolarization Effects of an Energy Drink as Compared to Coffee
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- QT interval will be measured in msec
研究概览
简要总结
- The primary objective of this study is to assess the effect of an energy drink on ventricular repolarization as measured by the interval between the cardiac Q wave and the cardiac T wave (QT interval)obtained from the body surface ECG.
- The secondary objective is to assess the effects of an energy drink on heart rate and blood pressure (hemodynamic effects).
To place the observed changes in context, comparison will be made to a commonly consumed drink, coffee: Starbuck's K-cup Breakfast Blend.
详细描述
This study will assess cardiac repolarization before and after three conditions each of which will involve the subject drinking beverages of varying caffeine content.
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
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •BMI between 24 - 29
排除标准
- •Resting heart rate below 60 bpm
- •Resting heart rate above 88 bpm
- •Cardiovascular or metabolic disease
研究组 & 干预措施
small dose monster energy drink
This will be a small dose of monster energy drink
干预措施: Monster Energy Drink (Dietary Supplement)
medium dose monster energy drink
This will be a medium dose of monster energy drink
干预措施: Monster Energy Drink (Dietary Supplement)
coffee
This will be a coffee group and will drink Starbuck's K-cup Breakfast Blend. This will be mixed according to packing instructions and will be given at a dose of 2mg caffeine/kg body weight (equivalent to approximately one 11 ounce cup of coffee for a person weighing 75 kg).
干预措施: Monster Energy Drink (Dietary Supplement)
coffee
This will be a coffee group and will drink Starbuck's K-cup Breakfast Blend. This will be mixed according to packing instructions and will be given at a dose of 2mg caffeine/kg body weight (equivalent to approximately one 11 ounce cup of coffee for a person weighing 75 kg).
干预措施: Coffee (Dietary Supplement)
medium dose monster energy drink
This will be a medium dose of monster energy drink
干预措施: Coffee (Dietary Supplement)
small dose monster energy drink
This will be a small dose of monster energy drink
干预措施: Coffee (Dietary Supplement)
结局指标
主要结局
QT interval will be measured in msec
时间窗: 19 hrs
The investigators will be measuring cardiac QT interval before (baseline) and for 5 hours post beverage consumption. The measurements will be made in msec.
次要结局
- Heart rate will be measured as beats per minute.(19 hrs)
- Blood Pressure will be measured in the brachial artery as mmHG(19 hrs)
研究者
Robert M. Brothers
Assistant Professor
University of Texas at Austin