超越力量:饮食中酸盐在中年成人抵抗训练后增加了自我选择的功能性移动性
Brandon M Peoples1, Mason C McIntosh1, Kenneth D Harrison1
1School of Kinesiology, Auburn University, 301 Wire Road, Office, Auburn, AL, 36849, USA.
GeroScience
|December 17, 2025
概括
饮食中酸盐补充剂与力量训练 (RT) 结合,显著改善了老年人的步行速度和功能移动性. 单独RT并没有产生类似的功能改善,突出了富含酸盐的甜菜汁 (BRJ) 的好处.
科学领域:
- 运动科学 运动科学 运动科学
- 营养科学 营养科学
- 老年学是一门学科.
背景情况:
- 衰老与步行性能和功能移动性下降有关.
- 抵抗训练 (RT) 是一种常见的干预措施,用于抵消与年龄相关的功能衰退.
- 饮食中酸盐补充剂,特别是来自甜菜汁 (BRJ),已经显示出增强生理功能的潜力.
研究的目的:
- 研究饮食中酸盐补充剂和RT对不活动中年和老年人的步行表现和功能移动性的综合影响.
- 为了比较富含酸盐的BRJ加RT与酸盐贫乏的安慰剂 (PLA)加RT的疗效.
主要方法:
- 一个为期12周的随机,双盲,安慰剂控制的试验试验,涉及28名不活动成年人 (平均年龄56岁).
- 参与者被分配到一个BRJ (大约. 12.8 mmol酸盐/天) 或PLA组,两家企业监督全身RT每周两次.
- 功能性评估包括仪器式站立和走路 (iSAW),6分钟步行测试 (i6MWT) 和定时和走路 (iTUG) 测试.
主要成果:
- 与PLA组相比,BRJ组在步行速度 (1.38m/s vs 1.27m/s) 和步伐长度方面表现出显著的改善.
- BRJ组在iTUG持续时间方面也显著改善,而PLA组没有表现出任何功能变化.
- 这些发现表明,12周的RT单独不足以改善这一队列中的功能移动性.
结论:
- 与RT一起补充酸导致中年成年人功能性移动性在临床上有意义的改善.
- 观察到的BRJ加RT的收益超过了单独RT12周的收益.
- 初步发现表明,潜在的性别特异性差异需要在未来的研究中进一步调查.
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