在年轻,健康的黑人女性中,对节奏握手运动的外周和中央血液动力学反应
Ruby Ama Nyarko1, Randy Liu, Justo Perez
1Department of Kinesiology and Health Education, College of Education, University of Texas at Austin, Austin, TX.
Medicine and science in sports and exercise
|March 6, 2025
概括
与非西班牙裔白人女性相比,年轻的非西班牙裔黑人女性在运动期间表现出类似的前臂血流反应. 这项研究没有发现血管功能的差异,这表明运动高血压在这些组之间是可比的.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 种族健康差异的差异
背景情况:
- 非西班牙裔黑人 (NHB) 女性面临的心血管疾病 (CVD) 风险高于非西班牙裔白人 (NHW) 女性.
- 以前的研究表明NHB男性的血管功能障碍,但NHB女性的运动高血压仍然未得到充分研究.
研究的目的:
- 为了研究前臂血流 (FBF) 和前臂血管导电 (FVC) 在运动期间在NHB妇女与NHW妇女相比.
- 为了测试NHB女性在节奏握手运动期间减弱高血压反应的假设.
主要方法:
- 健康的年轻NHW (n=16) 和NHB (n=14) 妇女在15%,30%和45%的最大自愿收缩 (MVC) 时进行了节奏手握运动.
- 使用双重多普勒超声波测量了前臂血流 (FBF).
- 中心血动力学,包括平均动脉压 (MAP),通过手指光多动力学监测.
主要成果:
- 在NHW和NHB女性之间没有观察到休息FBF,FVC或MAP的显著差异.
- 这两组在运动期间表现出FBF和FVC的强度依赖的增加.
- 前臂血管导电,血流和运动期间的平均动脉压反应在所有强度的组之间都是可比的.
结论:
- 对节奏握手运动的高血压反应在年轻,健康的NHB和NHW女性中是相似的.
- 这些发现表明,运动期间血管功能的差异不能解释NHB女性的较高心血管疾病负担.
- 需要进一步的研究,以了解导致心血管疾病差异的潜在因素.
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