在被动脱水后的水分生物标志物和测试复试可靠性的性别差异
Colin S Doherty1, Lauren V Fortington1, Oliver R Barley1
1School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
International journal of sport nutrition and exercise metabolism
|January 12, 2024
概括
这项研究发现,在脱水后,血红素等水化生物标志物对男性和女性的反应不同. 这些标志物用于跟踪水分状态的可靠性通常低至中等,并取决于性别.
科学领域:
- 运动生理学 运动生理学
- 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:
- 对运动员和军事人员来说,精确的水分状态监测至关重要.
- 现有的水化生物标志物可能会表现出特定于性别的反应和可靠性.
- 了解这些差异是优化补水策略的关键.
研究的目的:
- 在急性被动脱水后,调查血清,眼和尿液度,血红素和尿液特异重量变化的基于性别的差异.
- 评估这些水分生物标志物的测试-重新测试可靠性,分别对男性和女性进行测试.
主要方法:
- 15名男性和15名女性接受了两次桑拿程序,以诱导大约4%的体重减轻 (BML).
- 在脱水前和后收集血清,眼和尿液样本进行生物标志物分析.
- 变化得分和类内相关系数 (ICC) 计算以确定差异和可靠性.
主要成果:
- 在这两项试验中,男性的BML明显高于女性.
- 血红素的变化在性别之间有显著差异,无论BML.
- 性别是血红素和血清度变化的重要预测因素,独立于BML.
- 生物标志物的可靠性一般为低至中等,男性的可靠性低于女性.
结论:
- 补水生物标志物的反应和可靠性是性别特异的.
- 血红素和血清度的变化受到性别的影响,即使控制了体质损失.
- 目前的水化生物标志物具有有限的测试-重新测试可靠性,需要仔细考虑性别和个体变异性.
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