营养和生理需求塑造了世界巡回赛女自行车手的肠道微生物组
Toon Ampe1, Lieselot Decroix1, Kevin De Pauw1,2
1Human Physiology and Sports Physiotherapy Research Group (MFYS), Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium.
Microorganisms
|October 29, 2025
概括
精英女骑自行车运动员表现出独特的肠道微生物组,其特点是较高的Bacteroidota和较低的Firmicutes,可能与耐力训练需求有关. 这种"性能适应"的微生物组需要进一步研究其长期健康影响.
科学领域:
- 微生物学 微生物学
- 运动科学 运动科学 运动科学
- 人体生理学 人体生理学
背景情况:
- 精英耐力运动员经常表现出独特的生理适应.
- 肠道微生物组在运动表现中的作用是一个新兴的研究领域.
- 精英运动员的饮食模式可能会影响肠道微生物组成.
研究的目的:
- 为了比较精英女世界巡回赛自行车手与非运动员对照的肠道微生物组合.
- 调查高水平自行车需求与特定肠道微生物特征之间的潜在联系.
- 探索观察到的微生物群差异的功能影响.
主要方法:
- 横截面研究设计. 截面研究设计.
- 16S rRNA基因测序用于微生物组概况.
- 短链脂肪酸 (SCFA) 在便样本中的量化.
- 14名精英女骑自行车运动员和13名匹配的对照人群之间的比较.
主要成果:
- 观察到肠道微生物组组成的显著差异.
- 骑自行车的人显示出更高的Bacteroidota (72.7%对比15.3%) 和更低的Firmicutes (22.1%对比62.5%).
- 在骑自行车的人群中,阿尔法多样性减少 (香农指数) 和纤维发酵细菌 (如Lachnospiraceae,Ruminococcaceae) 枯竭.
- 便中SCFA水平在各组之间没有差异.
结论:
- 精英女骑自行车者可能拥有"适应性能"的肠道微生物组.
- 观察到的微生物转变与以碳水化合物为重点的,可能低纤维的饮食保持一致.
- 功能性适应可以解释不变的SCFA水平,尽管组成的差异.
- 因果关系和长期健康影响需要进一步研究,因为研究设计.
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