单补充剂对精英操作员登山训练的影响
Toshiya Miyatsu1, Jeremy McAdam1, Kody Coleman1,2
1Healthspan, Resilience and Performance Research, Institute for Human and Machine Cognition, Pensacola, FL, United States.
外源单 (KME) 补充剂在高海拔登山训练期间没有改善精英操作员的认知或身体表现. 这项研究没有发现任何好处,一些参与者经历了恶心和吐等不良影响.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 认知表现 认知表现
背景情况:
- 特种作战部队 (SOF) 在极端环境中作战,面临诸如缺氧等生理压力因素,这些压力会损害认知功能.
- 外源单 (KME) 在实验室环境中显示出减轻缺氧期间认知衰退的前景.
- 高海拔登山是美国SOF日益相关的作战领域.
研究的目的:
- 为了评估KME补充剂在现实世界,高海拔登山环境中的有效性,为美国SOF.
- 为了确定KME是否可以在严格的操作环境中减轻认知和身体性能下降.
主要方法:
- 一个随机,双盲,安慰剂控制的交叉试验与34名参与者在特种作战高级登山学校进行.
- 参与者进行了为期两天的战术山地作战,在执行苛刻的身体和认知任务的同时,登超过13000英尺.
- 在每个训练日中,每人服用六剂KME或安慰剂,并对血液标志物进行监测.
主要成果:
- 补充KME成功增加了血水平并降低了血糖水平.
- 随着KME补充,没有观察到认知或身体表现的显著改善.
- 报道称,KME患者的胃肠道困扰 (灼热,恶心,吐) 的发生率更高.
结论:
- 精英操作员的高海拔登山对认知表现的影响最小.
- 在这项实地研究中,KME补充剂没有显示出任何提高绩效的益处.
- 在操作环境中,KME补充剂可能会导致不良的胃肠道影响.
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