客观测量中度至强度的体力活动并不能减轻非洲裔成年人在流行病学过渡时期的潜在体重增加
Jessica C Davies1, Candice Choo-Kang2, Larske Soepnel1
1University of Cape Town.
Research square
|January 7, 2025
概括
关于肥胖的公共卫生信息经常建议身体活动 (PA). 然而,这项研究发现,虽然更高的中度至强烈强度PA (MVPA) 与体重降低有关,但它并没有阻止非洲裔成年人在八年内体重增加.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 肥胖问题研究研究
背景情况:
- 全球肥胖患病率正在上升,特别是在非洲裔人口中.
- 传统的公共卫生信息强调身体活动 (PA) 进行体重管理.
- 关于PA在预防体重增加方面的有效性,存在相互矛盾的数据.
研究的目的:
- 调查中度至强度体力活动 (MVPA) 与预期体重变化之间的关联.
- 为了确定MVPA是否会在8年内减轻非洲裔成年人的体重增加.
- 在不同的环境中分析客观的MVPA测量.
主要方法:
- 对来自加纳,南非,牙买加,塞舌尔和美国的851名非洲裔成年人进行了长度研究 (8年).
- 在基线和随访时使用加速度计对MVPA的客观测量.
- 用于分析与MVPA相关的权重变化,调整混因子的概括估计方程.
主要成果:
- 在研究期间,肥胖患病率从27.5%增加到38.0%.
- 较高的基线MVPA与较低的体重有关 (30分钟MVPA=600g的体重减少,p=0.04).
- 没有观察到时间和MVPA之间的统计学意义上的相互作用 (p=0.18),这表明无论MVPA水平如何,体重都增加了.
结论:
- 客观测量的纵向MVPA与预防这个队列的8年体重变化无关.
- 虽然PA对心血管健康至关重要,但仅靠它可能不足以应对不断上升的肥胖流行病.
- 需要进一步的研究来确定预防和管理肥胖的综合策略.
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