35万人研究:当“周末战士”靠谱吗?照样降低全因、癌症、CVD死亡风险!只要......

2022-07-08 MedSci原创 MedSci原创

JAMA Intern Med:“周末战士”和其他休闲时间身体活动模式与全因和特定原因死亡率的关联全国范围的队列研究。

运动与降低各种原因、心血管疾病 (CVD) 和癌症的死亡风险有关。世界卫生组织建议,18-64岁个体应至少进行150 分钟/周的中等强度有氧活动、至少75分钟/周的剧烈强度有氧活动或等效的组合,但运动频率目前并没有具体建议,一个人可以通过在一周中的5天参加30分钟的中等强度运动,也可以在一周中的1天参加75分钟的剧烈强度的身体活动来达到现行准则。而那些选择在一周的1或2天进行所有锻炼的人就被称为“周末战士”。

虽然“突击”锻炼可能更符合忙碌的生活方式,但人们对周末战士运动模式的好处和弊端都知之甚少。那么,这种周末集中运动的方式是否跟平时每天都坚持锻炼一小段时间的效果一样呢?本研究探讨了周末战士等运动模式与全因和病因特异性死亡率的相关性。

这项大型的全国性前瞻性队列研究纳入了350978名成年人,他们从1997年-2013年向美国国家健康访谈调查报告运动情况。参与者按自我报告的运动水平分组:不运动(MVPA每周<150分钟[分钟/周])或运动(≥150分钟/周中度或≥75分钟/周剧烈活动)。运动组按运动模式进一步分类:周末战士(1-2节/周)或定期运动(≥3节/周);然后,根据活动的频率、持续时间/时段和强度分组。主要结局为全因、CVD和癌症死亡率。统计分析于2022年4月进行。

中位随访时间为10.4年(360万人-年),共随访350978名受试者平均年龄为41.4 (SD,15.2)岁;其中192432名(50.8%)为女性。有21898例死亡记录,其中4130例来自CVD,6034例来自癌症。与不运动的参与者相比,周末战士的全因死亡率风险比(HR)为0.92(95%CI,0.83-1.02),平时规律运动者为0.85(95%CI,0.83-0.88);病因特异性死亡率的发现相似。

在中高强度运动量相同的情况下,周末战士的全因死亡、心血管死亡、癌症死亡风险与平时规律运动者相似。周末战士与平时规律运动者全因死亡率的HR为1.08(95%CI,0.97-1.20); CVD 死亡率1.14(95% CI,0.85-1.53); 癌症死亡率1.07(95%CI,0.87-1.31)。

这项大型前瞻性队列研究的结果表明,只要保持运动习惯,无论是周末战士还是平时规律运动者,都比不运动的个体具有更低的全因和病因特异性死亡率。在考虑MVPA的总量后,周末战士和平时规律运动者之间的全因或特定原因死亡率没有观察到显着差异;因此,只要达到指南推荐的运动量,周末集中运动和平时规律运动的获益相似。

 

原文来源:

Dos Santos M, Ferrari G, Lee DH, Rey-López JP, Aune D, Liao B, Huang W, Nie J, Wang Y, Giovannucci E, Rezende LFM. Association of the "Weekend Warrior" and Other Leisure-time Physical Activity Patterns With All-Cause and Cause-Specific Mortality: A Nationwide Cohort Study. JAMA Intern Med. 2022 Jul 5. doi: 10.1001/jamainternmed.2022.2488. Epub ahead of print. PMID: 35788615.

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