大动脉血压和脉冲波指标在外围动脉疾病中对运动的反应
Danielle Jin-Kwang Kim1, Zhaohui Gao1, Jian Cui1
1Penn State Heart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania, United States.
概括
周围动脉疾病 (PAD) 在运动期间增加大动脉血压和心肌氧气需求. 与健康个体相比,PAD患者经历了更大的血压升高和降低心下内脏活力.
科学领域:
- 心血管生理学心血管生理学
- 运动生理学 运动生理学
- 血管医学 血管医学
背景情况:
- 周围动脉疾病 (PAD) 涉及由于动脉样硬化的血流受阻.
- 运动期间PAD对中央血液动力学的影响尚不清楚.
研究的目的:
- 为了研究PAD患者在运动期间的中央血压反应和大动脉脉冲波特征.
- 为了比较PAD受试者与健康对照者的运动诱导的血液动力学变化.
主要方法:
- 13名PAD患者和13名健康对照人进行了节奏脚部曲运动.
- 大动脉血压和脉冲波速度在休息和运动期间被分析.
- 测量包括使用振荡计袖口和SphygmoCor.的手臂和辐射动脉压力.
主要成果:
- 患有PAD的患者表现出更高的基线增强指数和由于早期波反射而导致的心脏浪费能量.
- 在运动期间,PAD患者表现出大动脉平均动脉压和脉冲压的显著增加.
- 在运动期间,PAD的张力时间指数升高,导致下心内存活率降低.
结论:
- PAD改变了中央血压调节,并在运动期间增加了心肌的氧气需求.
- 运动加剧了PAD中的血液动力学压力,可能会影响心脏功能.
- 研究结果强调了评估心血管对运动反应在PAD管理中的重要性.
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