急性无机酸盐摄入不会影响女性团队体育运动员口腔微生物组成,认知功能或高强度运动表现
Rachel Tan1, Courtney Merrill2, Chandler F Riley2
1Natural Science Division, Pepperdine University, Malibu, CA, 90263, USA. rachel.tan@pepperdine.edu.
European journal of applied physiology
|July 17, 2024
概括
富含酸盐的急性甜菜汁没有提高运动表现,认知功能,或改变女性运动员的口腔微生物组. 这项研究表明,饮食中酸盐可能不会对团队体育运动中的女性这些领域产生影响.
科学领域:
- 运动科学 运动科学 运动科学
- 营养科学 营养科学
- 微生物学 微生物学
背景情况:
- 食中酸盐 (NO3-) 是氧化 (NO) 的前体,它在运动生理学中起作用.
- 甜菜汁是酸盐的常见来源,经常被运动员补充.
- 酸盐补充剂对运动表现,口腔微生物组和认知的影响需要进一步研究,特别是在女性运动员身上.
研究的目的:
- 为了研究急性摄入富含酸盐的甜菜汁对爆炸性和高强度运动表现的影响.
- 评估在最大间歇性跑步运动之前和之后对口腔微生物群组成和认知灵活性的影响.
- 为了确定饮食中酸盐是否影响女性团队体育运动员的这些生理和认知标志物.
主要方法:
- 随机,双盲,交叉研究涉及15名女性团队运动运动员.
- 参与者在测试前2.5小时服用了富含酸盐的甜菜汁 (BR) 或酸盐贫乏的安慰剂 (PL).
- 性能测试包括冲刺,手柄动力计,药球投,跳跃和约约间歇性恢复水平1 (YYIR1) 测试. 评估了口腔微生物组和认知灵活性.
主要成果:
- 在BR消耗后,静止血中酸盐和酸盐水平显著升高 (P < 0.001).
- 在BR和PL条件之间,在爆炸性炼性能 (冲刺,跳跃,投) 或YYIR1性能中没有发现显著差异.
- 口腔微生物组合和认知灵活性在运动前和运动后 (P > 0.05) 均不受甜菜汁摄入的影响.
结论:
- 酸盐丰富的甜菜汁的急性摄入似乎没有提高女性团队运动运动员的爆炸性或高强度运动表现.
- 酸盐食补充剂没有改变口腔微生物群的总体组成或相对丰度.
- 在这组女性运动员中,甜菜汁消费对认知灵活性没有显著的影响.
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