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Reproducibility of energy parameters in the pole vault

机译：撑竿跳高中能量参数的可重复性

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The purpose of this study was to analyze the reproducibility of kinematic, dynamometric and derived mechanical energy parameters in the pole vault as a main precondition for the practical applicability of the concept of energy exchange in the pole vault [Arampatzis et al., 2004. Journal of Biomechanics 37, 1353-1360]. A total of 46 vaults of six experienced vaulters were analyzed. On the basis of 3D kinematic data of the athlete and the pole and ground reaction forces measured at the end of the pole in the planting box the reproducibility of parameters that describe the energy transfer into the pole and the energy exchange between the athlete and the pole during the vault was proofed. Intraclass correlation, mean root mean square and the coefficient of variance were determined, additionally the Wilcoxon Test was applied. Parameters of the athlete's 3D total mechanical energy, e.g. initial energy and final energy, and the pole energy (maximum pole energy, energy of the pole due to compressive force and bending moment) were highly reproducible. The distribution of the energy transferred into the pole due to compressive force and bending moment, the same as the energy gain of the vaulter-pole system during the vault, which indicates the strategy of interacting with the pole, were also reproducible. With this the concept of energy exchange in the pole vault can be used to analyze the impact of training interventions, changes in movement pattern respectively, on the vaulters performance during different phases of the vault. The analysis of one trial of an athlete should be sufficient to identify changes in the athlete's interaction with the elastic pole. (c) 2005 Elsevier Ltd. All rights reserved.
机译：这项研究的目的是分析在撑杆跳中运动学，动力学和推导的机械能参数的可重复性，这是在撑杆跳中能量交换概念实际应用的主要前提[Arampatzis等，2004。生物力学37，1353-1360]。总共分析了46个Vault，其中包括6个经验丰富的Vaulter。根据运动员的3D运动数据以及在种植箱中的杆末端测得的杆和地面反作用力，这些参数的可再现性描述了能量向杆的传递以及运动员与杆之间的能量交换在金库中被证明。确定了类内相关性，均方根均方根值和方差系数，此外还应用了Wilcoxon检验。运动员3D总机械能的参数，例如初始能量和最终能量，以及极点能量（最大极点能量，由于压缩力和弯矩而产生的极点能量）都是高度可重现的。也可以重现由于压缩力和弯矩而转移到磁极中的能量的分布，与分配过程中的穹顶-磁极系统的能量增益相同，这表明与磁极相互作用的策略。通过这种方式，撑杆跳高中的能量交换的概念可用于分析训练干预，分别在运动模式上的变化对撑杆跳不同阶段中撑杆跳性能的影响。对一名运动员进行的一次试验的分析应足以确定运动员与弹性杆的相互作用的变化。 （c）2005 Elsevier Ltd.保留所有权利。

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