Timon Rafael, Collado-Mateo Daniel, Olcina Guillermo, Gusi Narcis
Department of Physical Education and Sport, Sport Sciences Faculty, University of Extremadura, Caceres, Spain -
J Sports Med Phys Fitness. 2016 Mar;56(3):232-40. Epub 2015 Jan 13.
Previous studies have demonstrated positive effects of acute vibration exercise on concentric strength and power, but few have observed the effects of vibration exposure on resistance training. The aim of this study was to verify the effects of whole body vibration applied to the chest via hands on bench press resistance training in trained and untrained individuals.
Nineteen participants (10 recreationally trained bodybuilders and 9 untrained students) performed two randomized sessions of resistance training on separate days. Each strength session consisted of 3 bench press sets with a load of 75% 1RM to failure in each set, with 2 minutes' rest between sets. All subjects performed the same strength training with either, vibration exposure (12 Hz, 4 mm) of 30 seconds immediately before each bench press set or without vibration. Number of total repetitions, kinematic parameters, blood lactate and perceived exertion were analyzed.
In the untrained group, vibration exposure caused a significant increase in the mean velocity (from 0.36±0.02 to 0.39±0.03 m/s) and acceleration (from 0.75±0.10 to 0.86±0.09 m/s2), as well as a decrease in perceived effort (from 8±0.57 to 7.35±0.47) in the first bench press set, but no change was observed in the third bench press set. In the recreationally trained bodybuilders, vibration exposure did not cause any improvement on the performance of bench press resistance training.
These results suggest that vibration exposure applied just before the bench press exercise could be a good practice to be implemented by untrained individuals in resistance training.
先前的研究已证明急性振动运动对向心力量和功率有积极影响，但很少有研究观察振动暴露对阻力训练的影响。本研究的目的是验证通过手部将全身振动应用于胸部对训练有素和未经训练的个体进行卧推阻力训练的效果。
19名参与者（10名业余训练的健美运动员和9名未经训练的学生）在不同日期进行了两阶段随机阻力训练。每个力量训练阶段包括3组卧推，每组负荷为1RM的75%，直至每组力竭，组间休息2分钟。所有受试者进行相同的力量训练，其中一组在每次卧推组之前立即进行30秒的振动暴露（12赫兹，4毫米），另一组不进行振动。分析了总重复次数、运动学参数、血乳酸和主观用力程度。
在未经训练的组中，振动暴露导致第一组卧推时平均速度显著增加（从0.36±0.02米/秒增加到0.39±0.03米/秒）和加速度显著增加（从0.75±0.10米/秒²增加到0.86±0.09米/秒²），同时主观用力程度降低（从8±0.57降至7.35±0.47）；但在第三组卧推时未观察到变化。在业余训练的健美运动员中，振动暴露未对卧推阻力训练的表现产生任何改善。
这些结果表明，在卧推运动前进行振动暴露可能是未经训练的个体在阻力训练中可以采用的一种良好做法。
