The Effects of HMB, ATP, and HMB Plus ATP on Muscle Mass, Strength, and Power in Resistance Trained Athletes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 44
- 试验地点
- 2
- 主要终点
- Increased muscle strength, force, and power after intense weight training
研究概览
简要总结
The purpose of this study is to
- determine the effects of 12 weeks of HMB free acid gel, ATP, and HMB free acid gel plus ATP supplementation in trained individuals during a periodized training program on skeletal muscle hypertrophy, body composition, strength, force, velocity, and peak power during loaded and unloaded vertical jumps.
Additionally, the study will determine if either supplementation protocol prevents the typical decay seen in performance following an overreaching cycle performed in the 9th and 10th weeks of the study.
Finally, the study will elucidate the mechanisms of action of supplementation on protein breakdown by analyzing serum indices of muscle damage (CK, LDH) and anabolic status (Testosterone:Cortisol ratio) as well as a urinary indicator of protein breakdown (3-methylhistidine).
We hypothesize that under these conditions that the supplementation protocols will augment skeletal muscle hypertrophy, strength, and power and that HMB will blunt increases in serum indices of muscle damage, and urinary indices of protein breakdown.
详细描述
In a randomized and double blind study the subjects will consume either placebo supplements, HMB supplement, ATP supplement, or HMB plus ATP supplements for 12 weeks. While consuming the supplements the subjects will undergo an extensive resistance training program designed to train all major muscle groups. An additional overreaching training cycle during weeks 9 and 10 which will involve a high-volume, hypertrophy style training program.
Subject testing will consist of the following:
- Strength and power at weeks 0, 1, 4, 8, 9, 10, and 12
- Range of motion and muscle soreness at weeks 0, 1, 8, 9, and 10
- Body composition and muscle assessments at weeks 0, 1, 4, 8, 9, 10, and 12
- Body fat assessments at weeks 0, 4, 8, and 12
- Blood biochemical measurements at weeks 0, 1, 4, 8, 9, 10, and 12
- Urinary analysis for protein breakdown (3-methylhistidine) at 0, 1, 8, 9, and 10 weeks
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)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Increased muscle strength, force, and power after intense weight training
时间窗: 12 weeks
次要结局
- Increased muscle hypertrophy(12 weeks)