对阻力呼吸的急性心脏自主和血液动力学反应:负荷类型和强度的影响
Karan Pongpanit1, Manta Korakot1, Peerakan Nitilap1
1Department of Physical Therapy, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand.
Clinical physiology and functional imaging
|March 18, 2024
概括
60%强度的呼气阻力呼吸 (ERB) 显著调节了心脏自主功能,增强了心率的变化. 这种呼吸类型在健康成年人中表现出最多的心血管效应,血动力学变化最小.
科学领域:
- 心血管生理学心血管生理学
- 自主神经系统功能 自主神经系统功能
- 呼吸机械学 呼吸机械
背景情况:
- 心脏自主功能和血液动力学反应对于维持平衡至关重要.
- 阻力呼吸练习越来越多地被探索其生理效应.
- 了解不同呼吸负载的影响对于优化训练和治疗干预至关重要.
研究的目的:
- 评估不同呼吸类型和强度对心脏自主功能的急性影响.
- 为了评估由不同的阻力呼吸协议引起的血液动力学变化.
- 为了比较不同强度的呼气,呼气和联合阻力呼吸的心血管和血液动力学影响.
主要方法:
- 一个随机的交叉试验设计与28名健康的年轻成年人一起使用.
- 参与者进行了吸入阻力呼吸,呼出阻力呼吸 (ERB) 和联合阻力呼吸.
- 呼吸任务在最大呼吸压力的30%和60%进行,收集了心率变化和血液动力学数据.
主要成果:
- 在所有变量中观察到呼吸类型和强度的显著主要和相互作用效应 (p < 0.001).
- 60%负载ERB显著增加了心率变化参数 (SDNN,RMSSD,HF功率).
- 60%负载ERB显著降低了心率,中风量,心脏输出和相关指数,这表明与其他方案相比,血液动力学障碍较少.
结论:
- 阻力呼吸的类型和强度严重影响心脏自主和血液动力学功能.
- 60%强度的ERB显示出最明显的心血管调节.
- 这个特定的协议诱导了最重要的自主调整,对血液动力学参数的影响最小.
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