"周末战士"的身体活动和心血管疾病
Shaan Khurshid1,2,3, Mostafa A Al-Alusi1,3,4, Timothy W Churchill1,5
1Cardiovascular Research Center, Massachusetts General Hospital, Boston.
JAMA
|July 18, 2023
概括
在每周1-2天内累积中等到强度的体力活动 (MVPA),被称为"周末战士"模式,为心血管提供类似的好处. 这一发现支持各种方法来达到心脏健康的建议炼水平.
科学领域:
- 心血管健康
- 运动生理学
- 公共卫生
背景情况:
- 目前的指导方针建议每周至少进行150分钟的中度至强度体力活动 (MVPA).
- 这种活动的最佳分布 (集中与分散) 尚不清楚.
- "周末战士"模式,其中大多数MVPA发生在1-2天内,是一种常见的行为.
研究的目的:
- 将与"周末战士"身体活动模式相关的心血管事件风险与更均分布的模式进行比较.
- 检查加速计推导的体力活动模式与发生心血管疾病之间的关联.
主要方法:
- 用加速度计数据对英国生物库参与者的回顾性分析 (n=89,573).
- 分类为"活动周末战士" (≥150分钟MVP,1-2天≥50%),"活动常规" (≥150分钟MVP,均分布) 和"不活动" (<150分钟MVP) 组.
- 使用考克斯比例危险回归来评估与发生心房动,心肌梗塞,心力衰竭和中风的相关性,并对共变量进行调整.
主要成果:
- 与不活动组相比,活动周末战士和活动常规的模式都与心房动,心肌梗塞和心力衰竭的风险明显降低.
- 这些结果的危险比率在"活动周末战士"和"活动常规"组之间是相似的.
- 当使用较高的MVPA值 (230.4分/周) 时,相关性保持一致,尽管在此较高的值时,中风相关性变得无关紧要.
结论:
- 将体力活动集中在每周1-2天 ("周末战士"模式) 与更均地分布的活动相比,心血管结果的风险同样降低.
- 这表明,无论体育活动的分布如何, 达到建议的体育活动量对心血管健康有益.
- 这些发现提供了证据支持集中和定期体育活动对减轻心血管疾病风险的有效性.
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