The Effect of Nitrate Supplementation on Sport Performance: High Intensity Intermittent Performance in Recreational Athletes
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Total distance covered during the Yo-Yo Intermittent Recovery 1 test (Yo-Yo IR1 test)
研究概览
简要总结
The objective of the current study is to assess the effect of 6-day dietary nitrate ingestion on high intensity intermittent sports performance in recreational soccer players.
详细描述
Oral ingestion of nitrate (NO3-) in the form of both nitrate salts and concentrated red beetroot juice has been shown to significantly lower blood pressure at rest and to improve exercise performance during cycle time trials. Furthermore, a positive exercise performance effect of nitrate ingestion has been observed in recreational athletes during intermittent exercise. However, this was achieved after acute supplementation with a substantial dose of dietary nitrate. Whether similar ergogenic effects of nitrate supplementation can be achieved with a more conventional 6-day nitrate supplementation protocol with a lower daily dose remains to be established. Based on the gaps in current literature, our main goal will be to gain further insight into the effects of a 6-day nitrate supplementation protocol on high intensity intermittent exercise performance in recreational athletes.
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
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Healthy P
- •Players of the first two senior selection teams of a regional soccer club competing at the 3rd KNVB level or higher
- •Training ≥2 days a week
- •18-40 years
排除标准
- •Use of medication
- •Injury prohibiting them from performing the exercise protocol effectively
- •Currently supplementing diet with nitrate
- •Lactose intolerance
研究组 & 干预措施
Nitrate-rich concentrated beetroot juice
Dietary supplement: 800 mg of nitrate in 140 mL of concentrated beetroot juice (Beet-IT)
干预措施: Nitrate-rich concentrated beetroot juice (Dietary Supplement)
Nitrate-depleted conc. beetroot juice
Placebo: 140 mL of nitrate-depleted concentrated red beetroot juice
干预措施: Nitrate-depleted concentrated red beetroot juice (Dietary Supplement)
结局指标
主要结局
Total distance covered during the Yo-Yo Intermittent Recovery 1 test (Yo-Yo IR1 test)
时间窗: Performance 3 hours post red beetroot juice ingestion
次要结局
- Plasma concentration of nitrite and nitrate(Concetrations 3 hours post red beetroot juice ingestion)
- Salivary concentration of nitrite and nitrate(Concetrations 3 hours post red beetroot juice ingestion)