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每天人工重力对自主心血管控制的影响,在60天头向下倾斜的床上休息后

J-N Hoenemann^1,2, S Moestl¹, A Diedrich³

¹Institute of Aerospace Medicine, German Aerospace Center, Cologne, Germany.

Frontiers in cardiovascular medicine

|November 13, 2023

概括

每天通过短臂离心法进行30分钟的人工重力,在60天的头向下倾斜床休息后,并没有防止心血管自主脱水. 这表明太空飞行适应可能需要更长或更强烈的人工引力干预.

科学领域:

空间生理学空间生理学
心血管自主控制心血管自主控制
人工引力的人工引力.

背景情况:

太空飞行和固定会损害心血管自主控制,限制血液动力学适应能力.
俯卧式倾斜床支模拟了太空飞行,提供了一个测试对策的模型.
以前的研究表明人造引力有好处,但长期有效性需要更多的研究.

研究的目的:

为了研究短臂离心 (人造重力) 是否可以在60天的头向下倾斜床休息期间防止自主降温.
在健康个体中评估每日人工引力干预措施的有效性.

主要方法:

24名健康参与者接受了60天的头向下倾斜卧床休息,被分配给连续或间歇性短臂离心,或对照组.
自主心血管控制通过心率变化 (HRV),血压变化和床上休息前后的气息反射灵敏度 (BRS) 来评估.
干预包括30分钟/天连续或6x5分钟间歇性短臂离心.

主要成果:

床上休息导致HRV和BRS降低,并且在所有组中增加了血压变化.
人工重力组和对照组之间没有发现显著差异.
每天30分钟的人工重力课程并没有阻止自主降温.

结论:

在测试的强度和持续时间下,通过短臂离心术的人工重力不足以在长时间的俯卧卧床休息期间防止心血管自主脱节.
需要进一步的研究来确定最佳的人工重力协议,以适应太空飞行.

关键词:

人工引力的人工引力.自主神经系统自主神经系统床上休息床上休息降低心血管疾病的条件.倾斜桌面测试倾斜桌面测试

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