球场表面对西班牙职业男性足球运动员工作负载反应的影响
José C Ponce-Bordón1, Jorge Polo-Tejada1, Borja Sanabria-Pino1
1Faculty of Sport Sciences, University of Extremadura, Avda. De la Universidad, S/N, 10003 Cáceres, Spain.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
球场表面显著影响足球训练负载. 高质量的天然草增加了感知力,而人工草减少了总体距离,但增加了高速跑步和冲刺.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 了解球场表面对运动员工作负载的影响对于预防伤害和优化职业足球中的表现至关重要.
- 不同的草类型可能会在训练期间引起不同的生理和生物力学反应.
研究的目的:
- 量化不同比赛面 (质量差的天然草,高质量的天然草,第三代人造草) 对职业足球运动员工作量相关变量的影响.
- 在各种训练面上分析外部负荷 (例如距离,速度) 和内部负荷 (例如感知力的速度,心理负荷).
主要方法:
- 使用全球定位系统 (GPS) 设备在训练期间监控外部负载参数.
- 雇员自报问卷以评估内部负载,包括感知劳动率 (RPE) 和心理负载.
- 分析了20名职业男性足球运动员在30次季前训练中在三个不同的比赛表面上进行的数据.
主要成果:
- 与质量差的天然草相比,高质量的天然草的感知力度 (RPE) 显著更高.
- 与这两种天然草相比,第三代人造草的总距离,相对总距离,加速度,减速和高代谢负载距离明显较低.
- 相反,高速跑步,冲刺距离和冲刺次数在第三代人造草上更高.
结论:
- 游戏表面类型在职业足球中显著影响训练负载变量.
- 教练在规划和规定训练负载时必须考虑训练面,以优化球员的条件和减轻受伤风险.
- 外部和内部负荷的差异表明,与人工与天然草相比,在人工草上训练有着不同的生理需求.
相关概念视频
Social Facilitation
31.9K
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
31.9K
Motion of a Projectile
764
Projectile motion becomes evident when a player kicks the ball into the air. The launch angle, or the angle at which the ball is kicked, plays a crucial role in determining the trajectory of the projectile. As the ball soars through the air, influenced solely by gravity, its motion can be dissected into two independent velocity components: the horizontal and the vertical.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
764
Factors Affecting Activity Coefficient
783
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...
783


