慢性贝他因补充剂对运动表现的影响:系统性审查和元分析
Emilia Zawieja1, Steven Machek2, Nelo Eidy Zanchi3
1Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Poznań, Poland.
Journal of sports sciences
|November 8, 2024
概括
贝他因补充剂显著增加最大力量,特别是在身体的下部,并可以提高垂直跳跃的性能. 这种饮食实践显示出增强运动能力的前景.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 运动医学 运动医学
背景情况:
- 贝他因补充剂是一种因其提高运动表现的潜力而被探索的饮食策略.
- 了解贝他因的疗效需要对现有研究进行全面分析.
研究的目的:
- 系统地审查和元分析慢性贝他因补充剂对健康成年人各种运动表现结果的影响.
- 评估贝他因对最大力量,功率和肌肉耐力的影响.
主要方法:
- 在主要的科学数据库 (PubMed,科学网,Scopus,谷歌学者) 进行了系统的文献搜索.
- 包括随机对照试验,比较慢性贝他因补充剂与安慰剂在15-60岁的健康个体中.
- 使用Cochrane风险偏差工具进行质量评估和随机效应模型进行元分析.
主要成果:
- 包含317名参与者的17项研究被纳入了元分析.
- 贝他因补充剂对最大强度 (效果大小为0.47) 产生了显著的积极影响,特别是在下肢强度 (SMD 0.49) 上.
- 在考虑研究质量后,在垂直跳跃性能 (SMD 0.36) 中观察到显著改善.
结论:
- 慢性贝他因补充剂,至少7天,有效地增强肌肉力量,显著的好处是身体下部的力量.
- 贝他因补充剂显示了提高垂直跳跃性能的潜力,需要进一步调查.
- 这些发现表明,贝他因可能是运动表现的特定方面有益的人体工程学辅助剂.
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