全球认知功能的结构化与自我引导的多领域生活方式干预:美国POINTER随机临床试验
Laura D Baker1, Mark A Espeland2, Rachel A Whitmer3
1Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
JAMA
|July 28, 2025
概括
与自我指导的方法相比,结构化的生活方式干预显著改善了老年人患痴呆风险的总体认知能力. 这一发现突显了高强度课程对认知健康的好处.
科学领域:
- 老年学与认知神经科学
- 公共卫生和预防医学
背景情况:
- 认知能力下降和痴呆症对公众健康构成重大挑战.
- 非药物干预提供了一个有希望的,安全的,可获得的预防策略.
- 针对可修改的风险因素的生活方式改变是维持认知功能的关键.
研究的目的:
- 将结构化与自主导的生活方式干预对认知轨迹的两年影响进行比较.
- 评估老年人认知能力下降和痴呆的风险.
主要方法:
- 一个单盲多中心随机临床试验,涉及2111名年龄在60-79岁之间的参与者.
- 参与者被随机分为结构化或自我引导的干预,促进身体活动,认知参与,健康饮食和社交互动.
- 在两年的时间里,使用执行功能,情节性记忆和处理速度的综合测量来评估认知功能.
主要成果:
- 这两项干预措施都在两年内提高了全球认知分数.
- 与自我指导组相比,结构化干预组的认知增长率在统计学上显著增加 (0. 029 SD).
- 在APOE ε4携带者和非携带者之间,益处是一致的,并且在基线认知能力较低的个体中显得更明显.
结论:
- 结构化,高强度的生活方式干预比自我指导的方法对处于危险的老年人产生更大的益处.
- 这些发现支持结构化生活方式计划在缓解认知衰退方面的临床相关性.
- 对功能结果和生物标志物的进一步研究是有必要的,以确认长期的可持续性.
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