年龄会影响胃肠道状况和对运动热应激的反应吗?
Pascale Young1, Kayla Henningsen1, Rhiannon Snipe2
1Department of Nutrition Dietetics & Food, Monash University, Notting Hill, Victoria, Australia.
International journal of sports medicine
|January 10, 2024
概括
强迫性热应激对大师和年轻耐力运动员的胃肠道状况产生了类似的影响. 两组都经历了类似的胃肠道症状和运动诱导胃肠综合征的标志物,尽管在炎症反应中存在一些与年龄相关的差异.
科学领域:
- 运动生理学 运动生理学
- 胃肠病学 胃肠病学
- 运动医学 运动医学
背景情况:
- 耐力运动员面临运动热应激 (EHS),可能会影响胃肠功能.
- 了解EHS反应的年龄相关差异对于运动员的健康和表现至关重要.
- 运动诱发性胃肠综合征 (EIGS) 是运动员在炎热条件下的一个担忧.
研究的目的:
- 为了比较EHS对大师和年轻耐力运动员胃肠道状况的影响.
- 调查热暴露期间EIGS和胃肠道症状 (GIS) 标志物的年龄相关差异.
主要方法:
- 16名大师 (平均年龄44岁) 和21名年轻 (平均年龄26岁) 耐力运动员在35°C的温度下以60%V̇O2max进行了2小时的跑步.
- 血液样本分析了肠道损伤标记,细菌转位和炎症 (I-FABP,sCD14,LBP,SIR-Profile,IgM,IL-1β) 的情况.
- 在暴露于热量的过程中记录了生理测量和GIS.
主要成果:
- 在肠上皮损伤,细菌内毒转位,LBP或SIR-Profile方面没有发现群体之间的实质差异.
- 与大师相比,年轻运动员的IgM和IL-1β的增加显着更高.
- 在大师和年轻运动员之间,GIS的发生率和严重程度是可比的.
结论:
- 作为对EHS的反应,EIGS的病理生理学与年龄的进展没有显著差异.
- 大师和年轻的耐力运动员表现出相似的胃肠道对运动热应激的反应.
- 在这些条件下,年龄不是EIGS发展的实质性差异化因素.
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