二次认知任务对与降落期间ACL负荷相关的变量的影响:系统性审查和元分析
Ryan Knight1, Ashika Chembila Valappil1, Adam Bruton1,2
1School of Life and Health Sciences, University of Roehampton, London, UK.
Sports biomechanics
|January 29, 2026
概括
双任务着陆,涉及体育活动期间的认知任务,尽管存在一些生物力学变化,但不会显著增加前十字带 (ACL) 的负载. 需要进一步的研究来证实这些发现在体育伤害预防.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 神经学 神经学
背景情况:
- 前十字带 (ACL) 损伤在体育运动中很常见.
- 双重任务,在物理任务期间执行认知任务,越来越多地研究其对运动控制的影响.
- 双重任务在着陆期间对ACL负荷的影响尚未完全理解.
研究的目的:
- 系统地审查和元分析双任务着陆对潜在的ACL负荷的影响.
- 综合当前关于双重任务着陆期间生物力学变化的研究.
- 确定文献中的空白,并建议未来的研究方向.
主要方法:
- 在SPORTDiscus,ScienceDirect和PubMed数据库的系统文献搜索 (2023年6月).
- 包括25篇文章,其中12篇符合元分析的条件,重点是单脚或双脚着陆与并发的认知任务.
- 使用R代码进行统计分析,包括漏斗图和回归测试,以评估出版偏差.
主要成果:
- 大多数研究表明,双重任务着陆可能会由于微小的生物力学变化而增加ACL负荷.
- 分析显示,对前面或横面平面膝盖负荷没有显著影响 (p=0.97).
- 观察到初接触膝盖曲角度的小幅下降 (p=0.03).
结论:
- 虽然双重任务着陆可以诱导生物力学变化,但它们并不能持续增加ACL总体负载.
- 目前的研究方法的多样性阻碍了最终的结论.
- 需要一致的研究方法来澄清双重任务着陆和ACL受伤风险之间的关系.
相关概念视频
The Colonization of Land
37.6K
Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
37.6K
Impact Loading
693
Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...
In cases of elastic deformation,...
693
Variability: Analysis
509
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
The range is a simple measure of variability, indicating the difference between the highest and...
509
Impact Loading on a Cantilever Beam
891
The analysis of a cantilever beam with a circular cross-section subjected to impact loading at its free end illustrates the conversion of potential energy from a dropped object into kinetic energy, which is then absorbed by the beam as strain energy. This process is crucial for understanding how materials behave under dynamic loads, which is important in fields such as construction and aerospace.
When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
891
Review and Preview
8.4K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
Percentiles are a type of fractile that partition data into...
8.4K
Review and Preview
11.2K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
11.2K


