Effects of Low and Versus Moderate Glycemic Index Diets on Physical Capacity and Body Composition in Endurance- Trained Runners
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 36
- 试验地点
- 2
- 主要终点
- Changes in aerobic capacity following moderate glycemic index diet
研究概览
简要总结
The purpose of the present study was to assess the influence of low vs moderate glycemic index of a 3-week diet on aerobic capacity, endurance performance and body mass and composition in endurance-trained athletes in a randomized, controlled crossover trial.
详细描述
The effect of glycemic index of pre-exercise meal on endurance capacity and performance has been widely investigated. However, little is known about the adaptations to longer dietary interventions with different glycemic index and their influence on aerobic capacity and body composition in runners. Therefore, the purpose of this study was the assessment of the influence of low GI vs moderate GI of a 3-week diet on aerobic capacity, endurance performance and body mass and composition in endurance-trained athletes in a randomised, controlled crossover trial.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 17 Years 至 37 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •written consent to participate,
- •male and female,
- •a current medical clearance to practice sports,
- •training experience: at least 3 years,
- •minimum of 4 workout sessions a week lasting at least 1.5-2 hours/day,
- •age: 17 - 37 years.
排除标准
- •current injury,
- •any health-related contraindication,
- •declared general feeling of being unwell,
- •unwilling to follow the study protocol,
- •smoking, illicit drug use, alcohol consumption greater than 1-2 drinks/week, dietary supplements use less than 3 weeks before the study,
- •females- being pregnant or planning to become pregnant during the study.
结局指标
主要结局
Changes in aerobic capacity following moderate glycemic index diet
时间窗: Baseline and after 3 weeks
Changes in aerobic capacity following low glycemic index diet
时间窗: Baseline and after 3 weeks
Changes in performance in 12-min running test following moderate glycemic index diet
时间窗: Baseline and after 3 weeks
Changes in performance in 12-min running test following low glycemic index diet
时间窗: Baseline and after 3 weeks
Changes in fat mass and fat free mass following low glycemic index diet
时间窗: Baseline and after 3 weeks
Fat mass (kg) and fat free mass (kg) analysis
Changes in fat mass and fat free mass following moderate glycemic index diet
时间窗: Baseline and after 3 weeks
Fat mass (kg) and fat free mass (kg) analysis
次要结局
- Statistical evaluation of the significance of differences between the changes in aerobic capacity indices(1 year)
- Statistical evaluation of the significance of differences between the changes in fat mass and fat free mass(1 year)
- Statistical evaluation of the significance of differences between the changes in performance in 12-min running test(1 year)
研究者
Krzysztof Durkalec-Michalski, PhD
Assistant Professor
Poznan University of Life Sciences