在健康志愿者持续高强度运动期间高流量鼻的生理影响:一个随机交叉试验
Eduardo Moya-Gallardo1,2,3,4, Patricio Garcia-Valdés1,2,5,4, Consuelo Marambio-Coloma1
1Departamento Ciencias de la Salud, Carrera de Kinesiología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
ERJ open research
|February 4, 2025
概括
高流量鼻腔管 (HFNC) 降低了健康个体的运动诱导的呼吸力和呼吸障碍. 这种干预措施还可以改善持续高强度运动期间的通风分布.
科学领域:
- 呼吸系统生理学 呼吸系统生理学
- 运动科学 运动科学
- 医疗器械 医疗器械
背景情况:
- 众所周知,高流量鼻腔管 (HFNC) 可以改善慢性呼吸系统疾病患者的运动能力.
- 在健康人群中,HFNC对运动期间生理变量的影响仍在调查中.
研究的目的:
- 评估HFNC在健康志愿者持续高强度运动期间对呼吸道生理变量的影响.
主要方法:
- 一个单中心,开放标签,随机交叉试验,比较HFNC (60L·min-1) 与Sham-HFNC (2L·min-1).
- 参与者接受了持续工作速度练习 (CWRET),在多个时间点进行测量.
- 主要结局是食道压力 (ΔP_oes) 的变化;次要结局包括吸入力,通风分布和通风变量.
主要成果:
- 在运动期间,HFNC显著降低了ΔP_oes和简化了食道压力-时间乘积 (sPTP) 每分钟.
- 区域通风延迟指数的标准偏差与HFNC相比较低,表明通风分布有所改善.
- 与HFNC一起报告了减少呼吸障碍,尽管其他次要结果在统计上没有显著意义.
结论:
- 在持续工作速度的运动过程中,HFNC干预有效地减少了健康志愿者的呼吸力和呼吸障碍.
- 在持续高强度运动期间,HFNC 改善了通风的时间分布.
- 这些发现表明,HFNC可以调节健康个体在艰苦活动期间的呼吸机制.
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