如何保持红肉和加工肉类摄入量与身体活动之间的平衡,与死亡率有关:剂量反应元分析
Yi Wu1, Maoqing Wang2, Zhiping Long1
1Department of Epidemiology, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin 150028, China.
定期体育活动,包括步行和肌肉强化活动 (MSA),可以减轻与红肉和加工肉类消费相关的死亡风险. 限制肉类摄入量,特别是加工品种,对于公共健康至关重要.
科学领域:
- 公共卫生 公共卫生
- 营养科学 营养科学
- 运动生理学 运动生理学
背景情况:
- 非传染性疾病 (NCD) 构成了重大的公共卫生挑战,心血管疾病 (CVD) 和癌症是导致死亡的主要原因.
- 了解饮食习惯和体育活动之间的相互作用对于制定有效的公共卫生战略至关重要.
研究的目的:
- 评估红肉/加工肉类消费与死亡风险之间的关系.
- 评估身体活动 (步行,肌肉增强) 对死亡率的影响.
- 分析对所有原因,心血管疾病和癌症死亡率的综合影响.
主要方法:
- 在主要电子数据库 (PubMed, Web of Science,Embase,Cochrane) 的系统文献搜索.
- 包括前性研究,报告肉类摄入量和体力活动的风险估计.
- 使用固定和随机效应模型合成数据的元分析.
主要成果:
- 红肉和加工肉的摄入量与死亡风险有积极的关联.
- 每日步行和肌肉增强活动 (MSA) 与死亡率有负相关性.
- 从每天4100步或每周39.5分钟的MSA减少20%的死亡风险,平衡了每天103.4克红肉或每天50克加工肉的风险.
结论:
- 身体活动是对抗肉类相关死亡风险的有效对策.
- 建议控制红肉和加工肉,特别是加工肉的总摄入量.
- 建议步行作为主要的日常活动;MSA对时间有限的人来说是有益的,但过度的持续时间提供减少的回报.
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