Dello Iacono Antonio, Martone Domenico, Padulo Johnny
1Department of Life Science, Zinman College of Physical Education and Sport Sciences, Wingate Institute, Tel Aviv, Israel; 2Maccabi Tel Aviv FC, Tel Aviv, Israel; 3Department of Movement Sciences and Wellness (DiSMEB), University "Parthenope," Naples, Italy; and 4University eCampus, Novedrate, Italy.
J Strength Cond Res. 2016 Nov;30(11):3122-3133. doi: 10.1519/JSC.0000000000001393.
Dello Iacono, A, Martone, D, and Padulo, J. Acute effects of drop-jump protocols on explosive performances of elite handball players. J Strength Cond Res 30(11): 3122-3133, 2016-This study aimed to assess the acute effects of vertical and horizontal drop jump-based postactivation potentiation (PAP) protocols on neuromuscular abilities in tasks such as jumping, sprinting, and change of direction (COD). Eighteen handball players were assessed before and after PAP regimens, consisting of either vertical single-leg drop-jumps (VDJ) or horizontal single-leg drop-jumps (HDJ) single-leg drop-jumps, on countermovement jump (CMJ), linear sprint, shuttle sprint, and agility performance. The HDJ led to greater improvement of the COD performance in comparison with the VDJ (-6.8 vs. -1.3%; p ≤ 0.05), whereas the VDJ caused greater improvement in the CMJ task compared with the HDJs (+6.5 vs. +1%; p ≤ 0.05). Moreover, the VDJ regimens compared with HDJ induced greater changes in most of the kinetic variables associated with vertical jumping performance, such as peak ground reaction forces (+9.6 vs. +1.3%), vertical displacement (-13.4 vs. -5.3%), leg-spring stiffness (+18.6 vs. +3.6%), contact time (-9.2 vs. -1.3%), and reactive strength index (+7.3 vs. +2.4%) (all comparisons with p ≤ 0.05). Conversely, the HDJ regimens were able to improve the COD performance only by reducing the contact time on COD more than the VDJ (-13.3 vs. -2.4% with p ≤ 0.05). The results showed that both PAPs were able to improve the performances that specifically featured similar force-orientation production. This investigation showed the crucial role that different and specific PAP regimens play in optimizing related functional performances. Specifically oriented vertical and horizontal single-leg drop-jump protocols represent viable means for achieving enhanced explosive-based tasks such as jumping and COD.
德拉·亚科诺，A，马尔托内，D，以及帕杜洛，J。纵跳和横跳式激活后增强（PAP）方案对精英手球运动员爆发力表现的急性影响。《力量与体能研究杂志》30(11): 3122 - 3133，2016年——本研究旨在评估基于纵跳和横跳的激活后增强（PAP）方案对诸如跳跃、短跑和变向（COD）等任务中神经肌肉能力的急性影响。在由单腿纵跳（VDJ）或单腿横跳（HDJ）组成的PAP训练方案前后，对18名手球运动员进行了反向纵跳（CMJ）、直线短跑、穿梭短跑和敏捷性表现的评估。与VDJ相比，HDJ使COD表现有更大程度的改善（-6.8%对-1.3%；p≤0.05），而与HDJ相比，VDJ在CMJ任务中带来了更大的改善（+6.5%对+1%；p≤0.05）。此外，与HDJ相比，VDJ训练方案在与垂直跳跃表现相关的大多数动力学变量上引起了更大的变化，如峰值地面反作用力（+9.6%对+1.3%）、垂直位移（-13.4%对-5.3%）、腿部弹簧刚度（+18.6%对+3.6%）、接触时间（-9.2%对-1.3%）和反应力量指数（+7.3%对+2.4%）（所有比较p≤0.05）。相反，HDJ训练方案仅通过比VDJ更多地减少COD上的接触时间来改善COD表现（-13.3%对-2.4%，p≤0.05）。结果表明，两种PAP方案都能够改善具有相似力导向产生特点的表现。本研究表明了不同且特定的PAP训练方案在优化相关功能表现中所起的关键作用。特定导向的单腿纵跳和横跳方案是实现诸如跳跃和COD等增强爆发力任务的可行手段。
