在潜水训练后增加对二氧化碳的通风反应.
Lars Ekman1,2, Clara Sjöblom2, Magnus Ekström2
1Department of Anesthesia and Intensive care, Blekinge Hospital, Karlskrona, Sweden.
概括
军事潜水训练可能会增加潜水员对二氧化碳 (CO2) 的通风反应. 这种适应可能对潜水员的安全至关重要,因为它可能会减轻潜水期间危险的二氧化碳保留.
科学领域:
- 生理学 生理学 生理学
- 环境医学 环境医学
- 潜水科学 潜水科学
背景情况:
- 与非潜水员相比,潜水员对二氧化碳 (CO2) 水平升高的呼吸系统反应较低.
- 潜水时的低通风和随后的二氧化碳保留带来了重大风险.
- 潜水员改变的二氧化碳反应的起源 (遗传与获得) 仍然不清楚.
研究的目的:
- 为了确定一项军事复风潜水训练计划是否会影响通风器对二氧化碳的反应.
- 为了研究潜水训练后呼吸控制中的潜在适应.
主要方法:
- 初学者反呼吸潜水员和对照组 (两游泳队员) 在基线,在水上运动后和潜水训练后进行了CO2反呼吸测试.
- 测试涉及重呼吸100%的氧气,并增加吸入CO2 (iCO2),直到症状限制或目标终潮CO2为8.0kPa.
- 使用认知分心 (记忆游戏) 来尽量减少呼吸的意识控制;使用t测试分析数据.
主要成果:
- 与基线和水上运动相比,潜水员在潜水后的训练中,在所有iCO2水平上,每分钟通风率 (V'E) 显著增加.
- 在潜水训练之前和之后,高卡普尼克呼吸反应 (HCVR) 的变化没有达到统计学意义.
- 在基线时,对照表现出一种趋势,即在较高的iCO2水平下,V'E比潜水员更高.
结论:
- 军事复风潜水计划可能与对CO2的增强通风反应有关.
- 这表明潜水训练可以诱导呼吸控制中的生理适应.
- 需要进一步的研究,以充分阐明这些变化对潜水员安全的机制和影响.
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