用于增强强度和功率表现的β-氨酸补充剂的剂量策略:系统性审查
Si-Wei Ong1, Wei-Ling Chen2, Kuei-Yu Chien1
1National Taiwan Sport University, Graduate Institute of Sports Science, Taoyuan City, Taiwan.
Journal of the International Society of Sports Nutrition
|September 25, 2025
概括
在增强强度和功率方面,分裂的β-氨酸 (β-氨酸) 剂量是关键. 每天4-6.4g的剂量,分成较小的份量,比单次大剂量更能提高性能.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 体育表现 体育表现 体育表现
背景情况:
- 贝塔-氨酸 (β-氨酸) 已被认为可以在高强度运动期间增强肌肉肉素和缓冲能力.
- 它在提高强度和功率性能方面的有效性在当前的研究中不一致.
研究的目的:
- 系统地审查关于抵抗训练的个体中β-氨酸补充剂的文献.
- 要确定剂量策略,而不仅仅是持续时间,是否对强度和功率增强的有效性至关重要.
主要方法:
- 在主要数据库 (PubMed,Scopus等) 进行系统的文献搜索. 最长时间为2025年5月.
- 基于PICO框架的纳入:受过训练的个体,β-氨酸补充剂,定义的剂量,强度/功率结果.
- 使用乔安娜·布里格斯研究所工具评估的方法质量.
主要成果:
- 审查了9项研究 (197名参与者).
- 每日剂量为4-6.4g,特别是当分为较小的份量 (例如,每天多次0.8g) 时,与改善的最大强度和功率有关.
- 持续释放形式的高总剂量或单剂量,以及具有低代谢压力的协议,并没有持续改善性能.
结论:
- 优化力量和功率需要5-8周的细分β-氨酸剂量 (4-6.4g/天),特别是在高代谢压力训练期间.
- 累积剂量和输送方法似乎比仅持续时间更为关键.
- 为从业者提供精细的指导方针,并强调需要个性化补充策略.
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