目的系统分析老年人内在能力轨迹变化或转变模式的相关研究，探究内在能力的变化特征，为后续研究提供参考依据。方法依据范围综述方法框架，检索中国知网、万方、维普、PubMed、Web of Science、CINAHL等中英文数据库中收录的关于老年人内在能力变化特征的纵向研究，检索时限为2015年1月1日至2025年2月28日。由2名研究者独立对文献进行筛选、质量评价及数据分析。结果最终纳入23篇文献，老年人内在能力及其各维度均呈现双向变化特征，影响因素复杂多样。此外，内在能力的恶化与衰弱、功能能力下降以及死亡风险增加等健康结局密切相关。结论老年人内在能力变动情况具有异质性；提示未来研究需定期监测内在能力轨迹，实现对不良事件的早期预警并制订针对性的照护方案，助力健康老龄化。

Objective To systematically analyze the relevant research on the trajectories or transformation patterns of intrinsic capacity among elderly adults and explore the changing characteristics of intrinsic capacity,so as to provide reference for future research in this field.Methods By the scope review method,longitudinal studies of the changing characteristics of intrinsic capacity among elderly adults in Chinese and English databases such as CNKI,Wanfang,VIP,PubMed,Web of Science,and CINAHL were searched from January 1,2015 to February 28,2025.Two independent researchers screened the literature,evaluated the quality and analyzed the data.Results A total of 23 studies were included.The study found that both the intrinsic capacity and the single domains among elderly adults had bidirectional characteristics,and the influencing factors were complex and diverse.The deterioration of intrinsic capacity was associated with adverse health outcomes,including frailty,functional ability decline and increased mortality risk,etc.Conclusions The study revealed significant heterogeneity in the changing characteristics of intrinsic capacity among elderly adults,suggesting that future research should regularly monitor the trajectories of intrinsic capacity,realize early warning of adverse events and formulate targeted care programs to contribute to healthy aging.

R47

北京市卫生健康科技成果和适宜技术推广项目（BHTPP2024095）