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对装载和不装载的垂直跳跃中力量和速度的测量系统和方法的比较分析
Valentina Silva-Pereyra1, Carlo M Biancardi1, Gabriel Fábrica2,3
1Department of Biological Sciences, CENUR Litoral Norte, Universidad de la República, Paysandú, Uruguay.
Sports biomechanics
|July 4, 2025
概括
评估跳跃性能需要准确的力和速度测量. 这项研究发现,运动捕捉和力平台之间存在显著的分歧,特别是在负载条件下,这突显了需要仔细选择方法的必要性.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 垂直力和速度是评估运动员跳跃表现的关键指标.
- 精确测量这些变量对于有效的培训和绩效评估至关重要.
- 动力 (力平台) 和动力学 (运动捕捉) 测量技术之间存在差异.
研究的目的:
- 为了研究从动力学与动力学获得的垂直力和速度的测量协议.
- 为了比较不同的计算方法,在装载和卸载的垂直跳跃中估计力和速度.
- 评估跳跃类型 (反运动跳跃与式跳跃) 和外部负载对测量协议的影响.
主要方法:
- 从23名年轻篮球运动员那里收集了同步的动力 (力平台) 和动力学 (运动捕捉) 数据.
- 参与者在没有负荷和负荷 (+20%的体重) 条件下进行了反运动跳跃 (CMJ) 和式跳跃 (SJ).
- 使用类内相关性和布兰德-阿尔特曼分析来比较不同计算方法的力和速度测量.
主要成果:
- 负载条件没有通过动力双差分影响力估计,但在式跳跃中出现了系统错误.
- 观察到运动捕捉和力平台速度计算之间的不一致性,随着增加负载而增加.
- 在理论速度估计方法和力平台测量之间发现了较低的一致性.
结论:
- 在不同的计算技术和条件下,垂直力和速度的测量协议存在显著的差异.
- 方法的选择对跳跃性能数据的解释产生重大影响,特别是在负载条件下或特定的跳跃类型下.
- 研究人员和从业人员在选择评估垂直力和速度的方法时必须谨慎,以确保数据的有效性.
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