The Effects of Ketone Ester Supplementation During a 5 Week Live High, Train Low Altitude Training Camp
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- KU Leuven
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- Total hemoglobin mass
研究概览
简要总结
This study aims to investigate the effects of post-exercise and pre-sleep exogenous ketosis via oral ketone ester supplementation during a 5 week simulated altitude training camp.
详细描述
Altitude training camps, where you train at sea level but live at altitude, have become a popular way for athletes to prepare for upcoming races or events. The main aim of such training camps is to benefit from the adaptations following prolonged hypoxic exposure (increased EPO concentrations leading to an increase in oxygen carrying capacity in the blood). Recently, ketone bodies have been shown to cause similar adaptations. Therefore, this study aims to investigate whether the combination of exogenous ketosis and an altitude training camp is more beneficial compared to an altitude training camp on its own.
Participants will follow a 5 week simulated altitude training camp where they spend 75 hours per week at altitude (2000-3000 meters), while taking ketone or placebo supplements after every training sessions and before going to sleep. During these 5 weeks, they will adhere to a prescribed training plan, consisting of 5 to 7 training sessions per week. Before, after and 1 week after the training camp, their exercise performance, EPO concentrations, hemoglobin mass and VO2max will be tested.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Double (Participant, Investigator)
盲法说明
Participants and investigators are blinded from the experimental condition (KE or CON). Supplements are provided in non transparent tubes and the control supplement is identical in taste and viscosity to the ketone supplement.
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
- •Physically fit and regularly involved in physical activity (2-5h per week)
- •Good health status confirmed by a medical screening
- •Non-smoking
排除标准
- •Any kind of injury/pathology that is a contra-indication to perform high-intensity exercise
- •Any kind of injury/pathology that is a contra-indication for exposure to hypoxia
- •Ongoing pregnancy or breastfeeding
- •intake of any medication or nutritional supplement that is proven to affect exercise performance during the last month prior to the start of the study
- •Involvement in elite athletic training at a semi-professional or professional level
- •Exposure to altitudes higher than 1500 m during the 3 months prior to the start of the study
- •Blood ferritin levels below 30 ng/mL
- •Current participation in another research trial
- •Any other argument to believe that the subject is unlikely to succesfully complete the full study protocol
研究组 & 干预措施
Placebo Comparator
Training intervention: 5 weeks of live high, train low followed by an additional 1 week of reduced training (to simulate preparation for an upcoming event or race) Dietary intervention: placebo supplement
干预措施: Placebo supplement (Dietary Supplement)
Experimental group
Training intervention: 5 weeks of live high, train low followed by an additional 1 week of reduced training (to simulate preparation for an upcoming event or race) Dietary intervention: Ketone ester supplement
干预措施: Ketone ester supplement (Dietary Supplement)
结局指标
主要结局
Total hemoglobin mass
时间窗: Day 0, Day 35, Day 42
Using the optimized CO-re-breathing method, total hemoglobin mass will be estimated
Skeletal muscle capillarization
时间窗: Day 0, Day 35, Day 42
Changes in muscle capillarization are measured using immunohistochemical anlyses
Cycling exercise performance
时间窗: Day 0, Day 35, Day 42
maximal average power output during a 30 minute time trial, cycling efficiency test and repeated sprint test
次要结局
- Maximal oxygen uptake (VO2max)(Day 0, Day 35, Day 42)
- Change in peripheral blood flow(Day 0, Day 35, Day 42)
- Serum EPO concentrations(Day 0, day1, week1, week2, week3, week4, week5, day35, day42)
- Sleep Architecture(Day 0, day1, week 3, day35, day42)