身体活动的相对强度和冠状动脉心脏病的风险
I-Min Lee1, Howard D Sesso, Yuko Oguma
1Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA. i-min.lee@channing.harvard.edu
Circulation
|March 5, 2003
概括
通过感知劳动来衡量体力活动强度,与降低冠心病 (CHD) 风险有关. 个人健身水平,而不仅仅是绝对MET,是有效的运动建议的关键,以预防心脏病.
科学领域:
- 心血管健康 心血管健康
- 运动生理学 运动生理学
- 预防医学 预防医学
背景情况:
- 目前的体力活动指南建议适度强度运动 (≥3METs) 为心血管健康.
- 绝对强度测量 (METs) 可能不考虑个体健康差异.
- 相对运动强度与冠心病 (CHD) 风险之间的关系尚未得到充分理解.
研究的目的:
- 调查相对体力活动强度与患冠心病 (CHD) 的风险之间的关联.
- 为了确定运动期间感知到的运动水平是否比绝对强度更好地预测心脏病风险.
- 评估这些关联是否适用于即使不符合当前身体活动建议的个人.
主要方法:
- 从1988年到1995年,对7337名男性 (平均年龄66岁) 进行了随访.
- 参与者报告了他们使用博格尺度 (相对强度) 的身体活动和感知到的炼.
- 记录了冠心病 (CHD) 的发病率,并进行了多变量分析.
主要成果:
- 与较弱的炼相比,观察到较高的感知劳动水平 (中等,有点强,强) 会降低心血管疾病的风险.
- 相对强度和心脏病风险之间的反向关联是显著的 (P ((趋势) =0.02).
- 相对强度的保护作用甚至在不符合标准体育活动指南的男性中也很明显 (<1000千卡/周或<3METs).
结论:
- 身体活动的相对强度,基于感知到的劳累,与心脏病风险相反相关.
- 个人对运动强度的个性化评估,考虑到个人健康状况,可能比基于MET的绝对建议更有效.
- 目前推≥3MET的指导方针可能需要改进,以纳入个人能力,以更好地预防心脏病.
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