The Effect of 28 Days of Beta-alanine Supplementation on the Physical Working Capacity at Heart Rate Threshold (PWCHRT)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 35
- 试验地点
- 2
- 主要终点
- Physical working capacity at heart rate threshold
研究概览
简要总结
Beta-alanine, as a method to increase muscle carnosine, has been shown to enhance muscle buffering capacity and delay fatigue. Various fatigue tests have been utilized to examine the effectiveness of beta-alanine supplementation. The physical working capacity test has been used to show significant increases in physical working capacities following supplementation. The physical working capacity tests were originally developed by Moritani et al. 1981 and Devries et al. 1982 to measure the point of onset of muscular fatigue. It is hypothesized that beta-alanine will increase physical working capacity at heart rate threshold, thereby signifying a delay in fatigue.
详细描述
An equal number of men and women will be recruited [Men, n=20 (10 placebo [PL]; 10 beta-alanine (Active)]; [Women,n=20 (10 PL; 10 Active)]. Men and women will be randomly assigned to respective groups to allow for equal numbers in supplement and placebo groups.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 盲法
- Double (Participant, Investigator)
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
- •Between the ages of 18-35 years old
- •Be recreationally active (defined as accumulating 1-5 hours of moderate intensity
- •Exclusion Criteria
- •Any health risks or indicators that would prevent them from participating in physical activity, as determined by a health history questionnaire
- •Must not have taken performance enhancing supplements containing beta-alanine or creatine during the last 3 months
排除标准
- 未提供
结局指标
主要结局
Physical working capacity at heart rate threshold
时间窗: 0 to 4 weeks
次要结局
未报告次要终点
研究者
Abbie Smith-Ryan, PhD
Assistant Professor
University of North Carolina, Chapel Hill