Abstract:

Objective To conduct a scoping review of research on the relationship between 24-hour movement behaviours and cognitive function in the elderly，so as to provide references for future research. Methods Totally 8 Chinese and English databases were systematically searched. The search period spanned from the establishment of databases until November 30，2024. According to the scoping review framework，2 researchers independently screened the studies，extracted the data of the included studies，and collaborated on the final analysis. Results A total of 12 papers were included，and the distribution of 24-hour movement behaviors in the elderly was as follows：3.0-5.4 h/d for light physical activity，0.6-1.5 h/d for moderate vigorous physical activity，8.9-12.3 h/d for sedentary behaviour and 6.7-8.4 h/d for sleep. Measures included objective，subjective and subject-objective measures. There are complex interactions among physical activity，sedentary behavior，sleep and cognitive function，which jointly affect cognitive function in the elderly. Conclusion Despite current differences in the measurement of 24-hour movement behaviours，the decreased physical activity，the increased sedentary time，and insufficient or excessive sleep are common problems among the elderly. By increasing physical activity，reducing sedentary behavior and ensuring adequate sleep，the overall cognitive function，executive function of the elderly can be improved. In the future，we should pay attention to the time allocation of 24-hour movement behaviours of the elderly，develop accurate and standardized measurement methods，and promote research in this field.

Key words: Aged, 24-Hour Movement Behaviors, Physical Activity, Sedentary Behavior, Sleep, Nursing Care, Review

摘要：

目的 对老年人24 h活动行为与认知功能关系的研究进行范围综述，为未来开展相关研究提供参考。方法系统检索8个中英文数据库，检索时限为建库至2024年11月30日。依据范围综述框架，由2名研究者进行文献筛选、资料提取及汇总分析。结果 纳入12篇文献，老年人24 h活动行为分布包括轻体力活动3.0~5.4 h/d、中至剧烈体力活动0.6~1.5 h/d、久坐行为8.9~12.3 h/d、睡眠6.7~8.4 h/d。老年人24 h活动行为测量方法涵盖主观测量法、客观测量法及主客观结合测量法。身体活动、久坐行为、睡眠与认知功能之间存在复杂的交互作用，三者共同影响老年人的认知功能。结论 24 h活动行为的测量方法存在差异，身体活动减少、久坐时间增加以及睡眠不足或过多是老年人普遍存在的问题。通过增加身体活动、减少久坐行为和确保充足的睡眠可以改善老年人的整体认知功能、执行功能等。未来应重视老年人24 h活动行为的时间分配，开发精准且标准化的测量方法，推进该领域相关研究。

关键词: 老年人, 24 h活动行为, 身体活动, 久坐行为, 睡眠, 护理, 综述