...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Wilderness & environmental medicine >Effects of oxygen supplementation on acute mountain sickness symptoms and functional capacity during a 2-kilometer walk test on Chajnantor plateau (5050 meters, Northern Chile).
【24h】

Effects of oxygen supplementation on acute mountain sickness symptoms and functional capacity during a 2-kilometer walk test on Chajnantor plateau (5050 meters, Northern Chile).

机译：在Chajnantor高原（5050米，智利北部）进行2公里步行测试期间，补充氧气对急性高山病症状和功能能力的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OBJECTIVE: The aim of this study was to test the hypothesis that administration of low-flow oxygen will improve physical performance in subjects unacclimatized to altitude. We evaluated the effects of oxygen supplementation on functional capacity and acute mountain sickness (AMS) symptoms in young, healthy male and female subjects who performed a 2-km fast walk test following rapid ascent to the Chajnantor plateau (5050 m above sea level) in Northern Chile. METHODS: The participants were randomly distributed into 2 groups according to oxygen supplementation levels: 1 or 3 L O(2) . min(-1). Within each group, males and females were evaluated separately. A preliminary walk test was carried out at sea level on a 100-m long, flat track with 10 U-turns. For the first walk at altitude, subjects carried the supplementary oxygen system but did not breathe the oxygen. Subjects received oxygen through a facemask the following day during the second test. The nights prior to altitude tests were spent at 2400 m in San Pedro de Atacama. RESULTS: Supplementary oxygen administration during a 2-km walk test significantly improved walking times at 5050 m. We also observed a significant improvement in AMS symptoms. As expected, however, performance was poorer at altitude compared to test values at sea level, despite supplementary oxygen administration. CONCLUSIONS: Our findings demonstrate the beneficial effects of supplementary oxygen administration on physical capacity, reducing the incidence of AMS and, thus, improving health and safety conditions for high altitude workers following rapid ascent, when adequate acclimatization is not possible.
机译：目的：本研究的目的是检验以下假设：在不适应海拔高度的受试者中，低流量氧气的使用将改善其身体表现。我们评估了补充氧气对年轻，健康的男性和女性受试者的功能能力和急性高山病（AMS）症状的影响，这些受试者在迅速上升到Chajnantor高原（海拔5050 m）后进行了2 km的快速步行测试。智利北部。方法：参与者根据补氧水平随机分为2组：1或3 L O（2）。 min（-1）。在每个组中，分别对男性和女性进行了评估。在100米长的平坦轨道上进行了初步的步行测试，该轨道有10个U形转弯。对于第一次在高空行走，受试者携带了辅助氧气系统，但没有呼吸氧气。在第二项测试的第二天，受试者通过口罩接受了氧气。海拔测试之前的晚上是在San Pedro de Atacama的2400 m处度过的。结果：在2公里的步行测试中补充氧气可以显着改善5050 m处的步行时间。我们还观察到AMS症状明显改善。但是，正如预期的那样，尽管补充了氧气，但海拔高度的性能却比海平面的测试值差。结论：我们的研究结果表明，在无法充分适应环境的情况下，补充氧气对身体机能，降低AMS的发生率，从而改善高海拔工人在快速上升后的健康和安全条件方面具有有益作用。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号