碳水化合物或电解质再水恢复了血体积,但没有浸泡后的性能,与浸泡后的水水相比
Courtney E Wheelock1, Elizabeth M Lavoie1, Jocelyn Stooks1
1Center for Research and Education in Special Environments (CRESE), Department of Exercise and Nutrition Sciences, University at Buffalo, Buffalo, NY 14214, USA.
Military medicine
|September 30, 2023
概括
与水 (H2O) 相比,碳水化合物 (CHO) 和碳水化合物-电解质 (CHO+E) 饮料在浸泡尿液后改善了血体积 (PV) 的恢复. 然而,运动表现没有得到改善,这表明浸泡后恢复液体体积是关键.
科学领域:
- 运动生理学 运动生理学
- 运动营养 运动营养
- 流体平衡 流体平衡 流体平衡
背景情况:
- 沉浸在冷水中可以诱导尿路,导致血体积 (PV) 损失.
- 重水化策略旨在恢复液体平衡并保持运动能力.
研究的目的:
- 调查碳水化合物 (CHO) 或碳水化合物电解质 (CHO+E) 饮料是否与水 (H2O) 相比,提高了血体积恢复和运动性能.
主要方法:
- 12名男性接受了四项试验:对照,H2O,CHO和CHO+E浸泡,然后进行运动.
- 液体摄入量与沉浸时的体重损失100%相匹配.
- 测量了血体积变化和运动表现 (间歇性跑步距离).
主要成果:
- 与H2O相比,CHO和CHO+E饮料导致浸泡后更大的血体积恢复.
- 尽管PV有所改善,但在H2O,CHO和CHO+E条件下,运动表现并没有显著差异.
- 在液体条件之间没有观察到体质损失的显著差异.
结论:
- 虽然CHO和CHO+E饮料有助于浸泡后的血体积恢复,但它们不会提高随后的运动表现.
- 浸泡性利尿后的液体替代策略应优先考虑恢复流体体积损失,而不是特定的液体成分.
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