The Effects of Beet-root Juice Supplementation on Exercise Economy, Rating of Perceived Exertion and Running Mechanics in Elite Distance Runners
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 12
- 主要终点
- Running economy
研究概览
简要总结
This study analyzed the effects of 15 days of beetroot juice supplementation on different performance measures in elite Spanish distance runners
详细描述
This study analyzed the effects of 15 days beetroot juice supplementation on the VO2max, running economy, exercise perceived exertion, muscle power and locomotion mechanics in a group of 12 elite Spanish middle and long distance runners
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
盲法说明
Twelve participants were randomly assigned to either an intervention group or a placebo group, and a 4 digits code based on their Spanish ID card were used to code their names.
Then, an independent researcher prepared individual bags with either a 15-days worth of placebo drinks or beetroot drinks, and gave it to the athletes. Then, this person was withdrawn for the research procedures.
Finally, another group of researchers, without knowing what athlete was on each group (intervention or placebo), conducted the performance tests pre and post 15 days of supplementation, and another group analyzed the data once collected.
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Competing in national and international events
- •Personal best in urban 10k: 33 minutes 0 seconds
排除标准
- 未提供
研究组 & 干预措施
Intervention group
Participants in this group ingested nitrate-rich beetroot juice for 15 days
干预措施: nitrate-rich beetroot juice (Dietary Supplement)
Placebo group
Participants in this group ingested a placebo drink for 15 days
干预措施: Placebo (Dietary Supplement)
结局指标
主要结局
Running economy
时间窗: Changes from baseline at 15 days
The cost of running (oxygen consumption) at different speeds
次要结局
- Time to exhaustion(Changes from baseline at 15 days)
- Muscle power(Changes from baseline at 15 days)
- Muscle oxygenation(Changes from baseline at 15 days)
- RPE(Changes from baseline at 15 days)
- Running mechanics(Changes from baseline at 15 days)
研究者
Carlos Balsalobre-Fernández
Principal Investigator
Universidad Autonoma de Madrid