甜菜汁补充剂对女性运动员有氧能力的影响:一项随机对照研究
Jekaterina Neteca1, Una Veseta2, Inga Liepina3
1Latvian Academy of Sport Education, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia.
Nutrients
|January 11, 2025
概括
甜菜汁补充剂显著改善了女性耐力运动员的有氧工作能力和氧气利用率. 这种营养策略提高了运动表现和能量生产,为运动员提供了有价值的人体工程学辅助.
科学领域:
- 运动科学 运动科学 运动科学
- 营养生理学 营养生理学
- 运动生理学 运动生理学
背景情况:
- 对耐力运动表现的营养补充剂越来越感兴趣.
- 众所周知,甜菜汁中的酸盐可以改善血管扩张和肌肉的氧气供应.
- 有限的研究存在于甜菜汁在女性运动员的心肺作用.
研究的目的:
- 评估甜菜汁补充剂对有氧工作能力的影响.
- 评估女性耐力运动员的心肺性能提升.
主要方法:
- 心肺运动测试 (CPET) 用于测量有氧劳动能力.
- 18名女性耐力运动员被随机分配到安慰剂组 (n=9) 和甜菜汁组 (n=9).
- 甜菜汁组在测试前2.5小时消耗了50毫升缩物 (约6.2毫米酸盐).
主要成果:
- 在甜菜汁组 (p < 0.05) 中,观察到分钟通风 (VE) 和呼吸等效 (VE / VO2, VE / VCO2) 的显著改善.
- 在甜菜汁组中,心率 (HR) 显著改善.
- 在甜菜汁组,最大氧气消耗 (VO2max) 增加了4.82%,而安慰剂组显示略有下降.
结论:
- 甜菜汁作为一种有效的 ergogenic 辅助,增强氧气利用和能量生产在运动中的女性运动员.
- 补充剂可以提高运动表现,可以整合到运动员的营养策略中.
- 需要对长期影响,最佳剂量和不同种群进行进一步的研究.
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