The high incidence of dual sleep and frail disorders in the elderly people, often occurring together, seriously affects the physical and mental health of the older people, effective research on the dynamics of dual sleep and frail disorders is important for improving the quality of life for the older people and responding to global ageing trend. While trajectory studies provide a unique practical scientific perspective to grasp the dynamics of development, dual trajectories unite dual barriers provide an opportunity to study the dynamic dependence of both sleep and frailty simultaneously sleep trajectories and frailty trajectories in older people are interrelated and interacted through deeper mechanisms. Therefore, it is necessary for the study not only focus on the ongoing development of health problems, but also needs to consider multiple aspects and propose targeted intervention program.
睡眠障碍与衰弱双重障碍在老年人中发生率高，常同时出现，严重影响老年人群身心健康。对睡眠与衰弱双重障碍动态发展规律的相关研究对改善老年人群生活质量、应对全球老龄化发展态势具有重要意义。轨迹研究为掌握动态发展规律提供了独特的实践科学视角，而联合双重障碍的双轨迹研究可为同时研究睡眠与衰弱二者动态依存关系提供机会。老年人群的睡眠轨迹和衰弱轨迹相互关联，并通过更深层次的机制相互作用。因此，不仅需关注单维健康问题的动态发展，还要考虑多个因素间的作用机制，从而提出有针对性的干预方案。.
Keywords: dual trajectory; frail; older people; sleep.