身体活动和降低心血管事件的风险:潜在的调解机制
Samia Mora1, Nancy Cook, Julie E Buring
1Donald W. Reynolds Center for Cardiovascular Research, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA. smora2@partners.org
Circulation
|October 31, 2007
概括
定期体育活动显著降低了心血管疾病 (CVD) 的风险. 这种益处在很大程度上可以解释为炎症标志物和血压的改善,突出了预防心血管疾病的关键机制.
科学领域:
- 心血管健康 心血管健康
- 运动科学 运动科学
- 生物标志物 生物标志物
背景情况:
- 较高的体力活动水平与心血管疾病 (CVD) 事件的减少有关.
- 这种关联的确切机制尚未完全理解.
- 心血管风险因素可能起到调解作用.
研究的目的:
- 调查各种风险因素在体力活动和心血管疾病之间的关系中的调解作用.
- 量化不同风险因素对观察到的逆关系的贡献.
主要方法:
- 对27,055名健康妇女进行前性研究,平均随访时间为10.9年.
- 测量了血红蛋白A1c的基线水平,脂质,肌素,同类半素和炎症/静血生物标志物.
- 评估自我报告的身体活动,体重,身高,高血压和糖尿病.
主要成果:
- 心血管疾病风险随着体力活动的增加线性下降.
- 已知风险因素的差异解释了59.0%的反向关联.
- 炎症/静血生物标志物 (32.6%) 和血压 (27.1%) 是降低风险的最大贡献者.
结论:
- 身体活动和心血管疾病风险之间的反向关联在很大程度上是由已知的风险因素介导的.
- 炎症/静血因素和血压是关键的调解因素.
- 新型脂质,BMI和血红蛋白A1c/糖尿病也起到了作用,而同型半氨酸和肌氨酸的影响最小.
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