Exercise Science Program, Lakeland University, Plymouth, Wisconsin.
J Strength Cond Res. 2018 May;32(5):1222-1229. doi: 10.1519/JSC.0000000000002096.
Kossow, AJ, DeChiara, TG, Neahous, SM, and Ebben, WP. Kinetic analysis of horizontal plyometric exercise intensity. J Strength Cond Res 32(5): 1222-1229, 2018-Plyometric exercises are frequently performed as part of a strength and conditioning program. Most studies assessed the kinetics of plyometric exercises primarily performed in the vertical plane. The purpose of this study was to evaluate the multiplanar kinetic characteristics of a variety of plyometric exercises, which have a significant horizontal component. This study also sought to assess sex differences in the intensity progression of these exercises. Ten men and 10 women served as subjects. The subjects performed a variety of plyometric exercises including the double-leg hop, standing long jump, single-leg standing long jump, bounding, skipping, power skipping, cone hops, and 45.72-cm hurdle hops. Subjects also performed the countermovement jump for comparison. All plyometric exercises were evaluated using a force platform. Dependent variables included the landing rate of force development and landing ground reaction forces for each exercise in the vertical, frontal, and sagittal planes. A 2-way mixed analysis of variance with repeated-measures for plyometric exercise type demonstrated main effects for exercise type for all dependent variables (p ≤ 0.001). There was no significant interaction between plyometric exercise type and sex for any of the variable assessed. Bonferroni-adjusted pairwise comparisons identified a number of differences between the plyometric exercises for the dependent variables assessed (p ≤ 0.05). These findings should be used to guide practitioners in the progression of plyometric exercise intensity, and thus program design, for those who require significant horizontal power in their sport.
Kossow, AJ, DeChiara, TG, Neahous, SM, and Ebben, WP. 水平式增强式训练强度的动力学分析。J Strength Cond Res 32(5): 1222-1229, 2018-增强式训练通常作为力量和体能训练计划的一部分进行。大多数研究主要评估了在垂直平面上进行的增强式训练的动力学。本研究的目的是评估各种具有显著水平分量的增强式训练的多平面动力学特征。本研究还旨在评估这些训练强度进展的性别差异。10 名男性和 10 名女性作为研究对象。研究对象进行了各种增强式训练，包括双腿跳跃、立定跳远、单腿立定跳远、跨步跳、跳绳、双摇跳绳、锥形跳跃和 45.72 厘米跨栏跳跃。研究对象还进行了反向跳以作比较。所有的增强式训练都使用力台进行评估。依赖变量包括每个垂直、正面和矢状面的增强式训练的力发展的着地速率和着地地面反作用力。使用具有重复测量的 2 因素混合方差分析对增强式训练类型进行评估，结果显示所有依赖变量的训练类型都有主要影响（p≤0.001）。在任何评估变量方面，增强式训练类型和性别之间都没有显著的相互作用。经 Bonferroni 调整的成对比较确定了评估的依赖变量之间的许多增强式训练之间的差异（p≤0.05）。这些发现应被用于指导从业者在增强式训练强度的进展，从而指导那些在运动中需要显著水平力量的人进行计划设计。
