The Effects of a Train High, Sleep Low Strategy on Performance, Substrate Utilization and Muscular Adaptations in Moderately Trained Cyclists
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 主要终点
- Time trial performance measured in Watts
研究概览
简要总结
The investigators will examine the long-term effects of a combined training and diet intervention that, acutely, increases fat oxidation during exercise. This is done with a 4 week intervention study with moderately trained cyclists. Performance is tested pre and post intervention and muscle biopsies are obtained.
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
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •18-45 years
- •VO2-max>55 ml/kg/min
- •No smokers
- •Training 6 hours per week (cycling)
- •Training experience for more than 3 years.
排除标准
- •Less than 2 g carbohydrate/kg/day
研究组 & 干预措施
Low group
This subjects in this group conducts all their morning exercise sessions with high fat oxidation (in a fasted condition). Thus, the subjects in this group after high intensity exercise in the evening do not get any carbohydrates to eat after training until the exercise session the following morning has been conducted.
干预措施: Combined exercise and diet intervention (Other)
High group
This subjects in this group conducts all their morning exercise sessions with low fat oxidation (in a fed condition). Thus, the subjects in this group after high intensity exercise in the evening do get carbohydrates to eat after training until the exercise session the following morning has been conducted.
干预措施: Combined exercise and diet intervention (Other)
结局指标
主要结局
Time trial performance measured in Watts
时间窗: Change from Baseline and after 4 weeks of training
30 min time trial after 90 minutes of intensive cycling. The average amount of Watts during the 30 minutes will be measured.
次要结局
- Protein expression in skeletal muscle tissue(Baseline and after 4 weeks of training)
- The absolute amount of carbohydrate and fat which is metabolised during morning exercise, measured in grams/minute(Baseline and after 4 weeks of training)