相关实验视频
Updated: Jun 27, 2026

09:36
Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
3.2K
握力不对称和软弱与认知功能的关联:全国代表性的队列研究
Youyou Zhang1, Rui Zhu1, Liru Ge1
1Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei 230032, Anhui, China.
Maturitas
|June 22, 2024
概括
非主导手臂的手握强度不对称和软弱与老年人的认知功能恶化和更快的衰退有关. 然而,占主导地位的手握不对称可能有助于维持认知功能.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
背景情况:
- 认知能力下降是老年人群的一个重大问题.
- 手握强度是对整体健康和脆弱性的公认生物标志物.
- 了解影响老年人认知功能的因素对于预防策略至关重要.
研究的目的:
- 调查手握强度不对称和软弱与中国中年和老年人认知功能之间的关联.
- 为了确定这些强度测量是否会随着时间的推移预测认知能力下降.
主要方法:
- 利用来自中国健康与退休长度研究 (2011-2018) 的数据.
- 评估的握力不对称性 (非主导握力与主导握力的比率) 和软弱 (通过特定的kg值来定义).
- 在基线和随着时间的推移评估认知功能 (情节性记忆,精神状态).
主要成果:
- 非主导的手握不对称性与较差的基线认知功能有关.
- 主导的手握不对称性与较慢的认知衰退有关.
- 非主导的手握不对称性和软弱预测加速认知衰退.
- 虚弱与较差的认知功能相关,并在多个时间点下降.
结论:
- 非主导的手握不对称和软弱与较差的认知功能和老年人的加速衰退有关.
- 主导的手握强度不对称可能在维持认知功能方面发挥保护作用.
- 手握强度指标为认知衰老提供了有价值的见解.
相关概念视频
Cause and Effect
While variables are sometimes correlated because one does cause the other, it could also be that some other factor, a confounding variable, is actually causing the systematic movement in our variables of interest. For instance, as sales in ice cream increase, so does the overall rate of crime. Is it possible that indulging in your favorite flavor of ice cream could send you on a crime spree? Or, after committing crime do you think you might decide to treat yourself to a cone?
Relationship Formation
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
Impact of Schemas
Schemas are cognitive structures that provide a framework for interpreting and organizing social information. They help individuals navigate complex environments by offering expectations about people, events, and behaviors. Schemas influence attention, encoding, and retrieval processes, thereby shaping the entire trajectory of information processing in social contexts.Attention and Cognitive LoadDuring initial attention, schemas function as filters that prioritize schema-consistent information,...
Magical Thinking
Magical thinking encompasses the belief in assumptions that defy logical reasoning yet appear intuitively convincing. It is a common psychological phenomenon that persists across various cultural and individual contexts. While these assumptions contradict empirical evidence and scientific laws, they often serve meaningful psychological roles in promoting emotional resilience and a sense of control, especially under stress or uncertainty.Thought-Action Fusion and the Law of SimilarityA key...
Halo Effect
The halo effect is a cognitive bias in which an individual's overall impression influences judgments about their specific traits. This psychological phenomenon leads people to associate positive characteristics with those they perceive as generally good and negative characteristics with those they view as bad. This effect is particularly influential in social perception, professional evaluations, and decision-making processes.The Psychological Basis of the Halo EffectThe halo effect is rooted...
Trait Centrality
Trait centrality refers to the degree to which a particular characteristic influences the overall impression of an individual. Some traits exert a disproportionately strong impact on perception, shaping how people interpret other attributes of a person. Solomon Asch first systematically studied this phenomenon in 1946.Asch’s Experiment on Trait CentralityAsch's seminal study demonstrated the centrality of certain traits through a controlled experiment. Participants were presented with a list of...

