高剂量中期HMB补充剂在正常条件下或高强度功能炼下,在训练有素和未训练有素的男性中没有引发身体组成变化
Krzysztof Durkalec-Michalski1,2,3, Magdalena Czlapka-Matyasik2,4, Tomasz Podgórski3,5
1Department of Sports Dietetics, Poznan University of Physical Education, Poznań, Poland.
Frontiers in nutrition
|October 10, 2025
概括
高剂量的β-基β-甲基酸盐 (HMB) 补充剂在经过训练或未经训练的男性中在六周内没有改变身体成分. 可能需要更长的补充时间来观察对无脂肪质量和脂肪质量的影响.
科学领域:
- 运动生理学 运动生理学
- 营养生物化学 营养生物化学
- 运动科学 运动科学 运动科学
背景情况:
- 贝塔-基-贝塔-甲基酸盐 (HMB) 是白的代谢产物.
- 补充HMB正在研究其增加无脂肪质量 (FFM) 和减少脂肪质量 (FM) 的潜力.
- 现有的研究主要集中在较低剂量 (3g/天) 和更长的持续时间 (12周).
研究的目的:
- 评估一个个性化的,高剂量,中期液体HMB自由酸补充方案.
- 评估单独使用HMB补充剂以及与高强度功能训练 (HIFT) 结合使用对身体质量和构成的影响.
- 为了比较受过培训 (TR) 和未受过培训 (UTR) 个体之间的结果.
主要方法:
- 90名男性 (TR和UTR) 参与了一项为期6周的随机并行组安慰剂对照研究.
- 期1: 3周的HMB (90mg/kgFFM/天) 或安慰剂 (PLA) 补充剂.
- 期 2: 3周的HMB或PLA与HIFT相结合 (每周2次,包括Fight Gone Bad训练).
- 身体质量 (BM),FFM,FM和总体水分 (TBW) 在基线测量,在第一期后,在第二期后.
主要成果:
- 补充HMB (4.8-7.8g/天) 并没有显著影响BM,FFM,FM或TBW.
- BM,FFM和TBW从基线增加到干预后 (SUP+FGB),无论治疗或培训状态如何.
- 训练状态影响了FM (UTR略微增加) 和TBW (UTR略微减少),独立于HMB/PLA.
结论:
- 个人调整的高剂量HMB在训练有素或未训练有素的男性中在3周的补充剂或3周的HIFT补充剂期间没有改变身体组成.
- 观察到的身体质量和组成的变化主要与高强度功能训练刺激有关.
- 可能需要更长的HMB补充期来引起身体质量和组成的显著变化.
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