通过360度旋转平台模拟微重力视角,在各种倾斜处对人类心脏脉冲参数的响应
Sagar Jagtap1, Ajay Kumar2,3, Bhoopesh Mahale4
1Department of Physics, Haribhai V. Desai College, Pune, MS, 411002, India. ssjagtap83@gmail.com.
NPJ microgravity
|July 18, 2023
概括
宇航员在太空中经历心血管变化. 一个新的360度旋转平台模拟微重力,揭示可逆心脏适应,并建议270度的头向下倾斜作为研究宇航员心脏反应的优越模拟.
科学领域:
- 心血管生理学心血管生理学
- 太空医学 太空医学
- 生物医学工程 生物医学工程
背景情况:
- 人的心血管系统适应了地球的重力.
- 在太空飞行期间暴露于微重力显著改变心血管功能.
- 像头向下倾斜 (HDT) 这样的地面类型用于研究这些效应,但存在局限性.
研究的目的:
- 为了研究心血管参数反应和循环适应,使用一个新的360度旋转平台.
- 为了评估不同倾斜的有效性作为微重力类型.
- 将观察到的心脏反应与已知的太空飞行效应进行比较.
主要方法:
- 18名健康的男性受试者使用本土开发的360度旋转平台进行了研究.
- 心脏脉冲被记录在30°的倾斜间隔从0°到360°使用压电脉冲传感器.
- 分析了相关的心脏参数,以评估循环适应.
主要成果:
- 在旋转过程中观察到脉冲形状和心脏参数振荡模式的显著变化.
- 心脏反应在返回卧卧姿势后正常化,表明可逆适应.
- 在270°倾斜时心脏参数的变化与太空飞行观测结果相当.
结论:
- 360度旋转平台有效模拟微重力对心血管系统的影响.
- 270°的头向下倾斜倾斜显示出作为微重力模拟器的特别前景.
- 这种方法可以提高对宇航员心脏反应的理解,特别是在短期任务中.
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