比赛外部负荷对U-18英超联赛学院足球运动员神经肌肉表现的缓和效应:一个主要成分回归方法
Matthew Springham1,2, Nav Singh2, Perry Stewart2
1Faculty of Sport, Allied Health and Performance Science, St Mary's University, United Kingdom.
Journal of strength and conditioning research
|November 26, 2025
概括
比赛体积对年轻足球运动员的神经肌肉表现产生负面影响. 较高的比赛量显著降低了U-18英超联赛学院球员的整体神经肌肉性能和同度 adductor强度.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 足球表现分析 足球表现分析
背景情况:
- 了解比赛负载对年轻运动员的影响对于绩效和伤害预防至关重要.
- 英超联赛 (EPL) 学院需要严格监测球员的发展和疲劳.
研究的目的:
- 调查比赛外部负荷对U-18 EPL学院足球运动员神经肌肉表现的缓和作用.
- 分析各种匹配负载指标与神经肌肉功能变化之间的关系.
主要方法:
- 17名男性外场球员在比赛前后接受了神经肌肉测试 (CMJ,IADS,后链强度).
- 全球定位系统和微电机械传感器设备的记录与外部负载数据相匹配.
- 主要组件分析和线性混合效应回归模拟了负载性能关系.
主要成果:
- 两个主要组成部分解释了93%的外部负载变异,代表了总匹配量和高速运行/冲刺量.
- 标准化的神经肌肉性能从比赛前到比赛后下降了0.85.
- 总匹配体积 (PC1) 与整体神经肌肉性能和同度部附加器峰值力有显著的负相关性.
结论:
- 较高的比赛量会对U-18 EPL学院足球运动员的神经肌肉性能产生负面影响.
- 特定的神经肌肉质量,比如同度性部附加器强度,对增加的比赛负载特别敏感.
- 这些发现强调了管理训练负载的重要性,以优化表现并减轻精英青年足球运动员的疲劳.
相关概念视频
Factors Affecting Activity Coefficient
1.5K
The extended Debye-Hückel equation indicates that the activity coefficient of an ion in an aqueous solution at 25°C depends on three partially interdependent properties: the ionic strength of the solution, the charge of the ion, and the ion size.
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
1.5K
Multiple Regression
3.7K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.7K
Exercise and Muscle Performance
2.3K
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
2.3K
Eccentric Loading
878
Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under...
878
Regression Toward the Mean
6.8K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.8K


