Martínez-Pardo Esmeraldo, Romero-Arenas Salvador, Martínez-Ruiz Enrique, Rubio-Arias Jacobo A, Alcaraz Pedro E
1Research Center for High Performance Sport-UCAM, Catholic University of Murcia, Murcia, España; 2Faculty of Sport-UCAM, Catholic University of Murcia, Murcia, España; and 3Faculty of Health Sciences, Catholic University of Murcia, Murcia, Spain.
J Strength Cond Res. 2014 Nov;28(11):3255-63. doi: 10.1519/JSC.0000000000000531.
The aim of this study was to evaluate the effects of whole-body vibration by varying the training frequency (2 or 3 sessions per week) on the development of strength, body composition, and mechanical power. Forty-one (32 men and 9 women) recreationally active subjects (21.4 ± 3.0 years old; 172.6 ± 10.9 cm; 70.9 ± 12.3 kg) took part in the study divided in 2 experimental groups (G2 = 2 sessions per week, G3 = 3 sessions per week) and a control group (CG). The frequency of vibration (50 Hz), amplitude (4 mm), time of work (60 seconds), and time of rest (60 seconds) were constant for G2 and G3 groups. Maximum isokinetic strength, body composition, and performance in vertical jumps were evaluated at the beginning and the end of the training cycle. A statistically significant increase of isokinetic strength was observed in G2 and G3 at angular velocities of 60, 180, and 270°·s. Total fat-free mass was statistically significantly increased in G2 (0.9 ± 1.0 kg) and G3 (1.5 ± 0.7 kg). In addition, statistically significant differences between G3 and CG (1.04 ± 1.7%) (p = 0.05) were found. There were no statistically significant changes in the total fat mass, fat percentage, bone mineral content, and bone mineral density in any of the groups. Both vibration training schedules produced statistically significant improvements in isokinetic strength. The vibration magnitude of the study presented an adaptation stimulus for muscle hypertrophy. The vibration training used in this study may be valid for athletes to develop both strength and hypertrophy of the lower limbs.
本研究的目的是通过改变训练频率（每周2次或3次）来评估全身振动对力量发展、身体成分和机械功率的影响。41名（32名男性和9名女性）休闲活动参与者（年龄21.4±3.0岁；身高172.6±10.9厘米；体重70.9±12.3千克）参与了该研究，分为2个实验组（G2组 = 每周2次训练，G3组 = 每周3次训练）和1个对照组（CG组）。G2组和G3组的振动频率（50赫兹）、振幅（4毫米）、工作时间（60秒）和休息时间（60秒）保持恒定。在训练周期开始和结束时评估最大等速肌力、身体成分和垂直跳表现。在G2组和G3组中，60、180和270°·s角速度下的等速肌力有统计学意义的增加。G2组（0.9±1.0千克）和G3组（1.5±0.7千克）的去脂体重总量有统计学意义的增加。此外，发现G3组与CG组之间存在统计学意义的差异（1.04±1.7%）（p = 0.05）。所有组的总脂肪量、脂肪百分比、骨矿物质含量和骨矿物质密度均无统计学意义的变化。两种振动训练方案均使等速肌力有统计学意义的改善。本研究的振动幅度对肌肉肥大呈现出一种适应性刺激。本研究中使用的振动训练可能对运动员发展下肢力量和肥大有效。
