Examining Exogenous Carbohydrate Oxidation From Glucose, Multiple Transportable Carbohydrates and Hydrogel Carbohydrate Drinks During Endurance Running
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 9
- 试验地点
- 1
- 主要终点
- Peak exogenous carbohydrate oxidation rate
研究概览
简要总结
The aim of this study is to characterise exogenous carbohydrate oxidation rates during exercise, when ingesting glucose (polymers) only, compared to glucose-fructose mixtures, and glucose-fructose mixtures ingested in hydrogel form.
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
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Maximal oxygen consumption > 50 ml.kg-1.min-1
- •> 1 year training in endurance running or triathlon
- •No current injury or injury within the last three months
- •No history of cardiac or metabolic disease such as coronary heart disease or diabetes
- •No current or history of gastrointestinal issues
- •Successful completion of the physical activity readiness questionnaire (PAR-Q)
排除标准
- •Untrained in endurance running
- •Current injury or injury within the past three months
- •History of cardiac or metabolic disease such as coronary heart disease or diabetes
- •History of or current gastrointestinal issues such as irritable bowel syndrome
- •Unable to replicate diet and training for 3 and 5 days respectively prior to each experimental visit.
研究组 & 干预措施
Fructose-maltodextrin ingestion
Ingestion of fructose and maltodextrin (glucose polymers) at a rate of 90 g carbohydrate per hour during two hours of treadmill running at 60%VO2peak.
干预措施: Fructose-maltodextrin (Dietary Supplement)
Fructose-maltodextrin hydrogel ingestion
Ingestion of fructose and maltodextrin (glucose polymers) encapsulated in alginate-pectin hydrogel, drinks at a rate of 90 g carbohydrate per hour during two hours of treadmill running at 60%VO2peak.
干预措施: Fructose-maltodextrin hydrogel (Dietary Supplement)
Glucose-maltodextrin ingestion
Ingestion of glucose and maltodextrin (glucose polymers) at a rate of 90 g carbohydrate per hour during two hours of treadmill running at 60%VO2peak.
干预措施: Glucose-maltodextrin (Dietary Supplement)
结局指标
主要结局
Peak exogenous carbohydrate oxidation rate
时间窗: 120 minutes
Peak exogenous carbohydrate oxidation rate during 120 min of treadmill running. Measured using isotope ratio mass spectrometry and reported in grams per minute
次要结局
- Ratings of gastrointestinal discomfort(120 minutes)
- Total fat oxidation(120 minutes)
- Plasma lactate concentrations(120 minutes)
- Heart rate(120 minutes)
- Plasma glucose concentrations(120 minutes)
- Plasma non-esterified fatty acid concentrations(120 minutes)
- Total carbohydrate oxidation(120 minutes)
- Plasma insulin concentrations(120 minutes)
- Ratings of perceived exertion(120 minutes)
- Rate of oxygen consumption(120 minutes)
- Rate of carbon dioxide production(120 minutes)
研究者
Javier Gonzalez
Associate Professor
University of Bath