冷压器测试对手臂间血压差异的影响
Alyssa C Watts1, Lauren A Naylor1, Brock T Jensen2
1Department of Physical Therapy, Slippery Rock University, Slippery Rock, PA, USA.
International journal of exercise science
|August 28, 2023
概括
寒冷压力测试 (CPT) 在健康个体中显著增加了血压的双臂间差异 (IAD). 在交感刺激期间血压和血液动力学上的这些变化突出了IAD背后的潜在机制.
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
背景情况:
- 休息时血压 (BP) 的大臂间差异 (IAD) 与心血管风险增加有关.
- IAD的潜在机制仍然不清楚,需要使用独特的生理刺激进行研究.
- 寒冷压力测试 (CPT) 是一种强大的交感神经系统 (SNS) 刺激剂,但其对IAD的影响尚不清楚.
研究的目的:
- 研究CPT对年轻健康个体臂间血压差异 (IAD) 的影响.
- 探索具有和没有大型休息IAD的个体之间对SNS刺激的血液动力学反应的潜在差异.
主要方法:
- 同时监测血压使用自动听力监测器和非侵入性血液动力学装置.
- 参与者接受了CPT,在休息后浸入3°C的水中.
- 重复测量 ANOVA 用于分析绝对和相对 IAD 对 CPT 的反应.
主要成果:
- 在30秒后,CPT显著增加了绝对IAD4.0 mmHg,在2分钟后增加6.7 mmHg (P<0.05).
- 在IAD和IAD+个体之间观察到绝对和相对IAD对CPT反应的显著差异 (P<0.05).
- 与IAD患者相比,IAD+患者在CPT期间表现出较低的中风体积,尽管心率反应类似.
结论:
- 通过CPT对交感神经系统的刺激会改变双臂间血压差异和血液动力学.
- 在有或没有大量休息IAD的个体中,对CPT的明显血液动力学反应表明潜在的潜在机制.
- 这些发现为手臂间血压差异的生理基础提供了新的见解.
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