de Ruiter C J, Van Raak S M, Schilperoort J V, Hollander A P, de Haan A
Institute for Fundamental and Clinical Human Movement Sciences, Vrije Universiteit, Van der Boechorststraat 9, 1081 BT, Amsterdam, The Netherlands.
Eur J Appl Physiol. 2003 Nov;90(5-6):595-600. doi: 10.1007/s00421-003-0931-2. Epub 2003 Aug 16.
The purpose of the present study was to investigate whether 11 weeks of whole body vibration (WBV) training applied in a way that is commonly seen in practice, i.e. without additional loads, would improve muscle activation and/or contractile properties of the knee extensor muscles and counter movement jump height in healthy subjects. Ten subjects belonging to the experimental group trained three times a week and stood bare-foot with a 110 degrees knee angle on a vibration platform (30 Hz, 8 mm amplitude). They underwent five to eight sets of 1-min vibration with 1 min rest in between. Ten control subjects followed the same training programme but stood (110 degrees knee angle) beside the platform. Before, during and following the training period the subjects were tested. Values [mean (SEM)] obtained in the last test were expressed as percentages of the baseline value and presented for control and experimental groups. Quadriceps femoris isometric muscle force [105.4 (6.2)%, 99.9 (2.0)%; P=0.69], voluntary activation [107.1 (6.0)%, 101.1 (2.3)%; P=0.55] and maximal rate of voluntary force rise [95.4 (6.0)%, 103.3 (7.7)%; P=0.57] did not improve. The maximal rate of force rise during electrical stimulation was increased [102.3 (4.5)%, 123.6 (7.5)%; P=0.02]. Counter movement jump height was not affected by WBV [103.7 (1.8)%, 103.0 (2.8)%; P=0.71]. In conclusion, 11 weeks of standard two-legged WBV training without additional training loads did not improve functional knee extensor muscle strength in healthy young subjects.
本研究的目的是调查以实际中常见的方式（即无额外负荷）进行11周的全身振动（WBV）训练，是否会改善健康受试者股四头肌的肌肉激活和/或收缩特性以及反向纵跳高度。实验组的10名受试者每周训练3次，赤足以110度膝关节角度站在振动平台上（30赫兹，8毫米振幅）。他们进行5至8组1分钟的振动，每组之间休息1分钟。10名对照受试者遵循相同的训练方案，但站在平台旁边（膝关节角度110度）。在训练期之前、期间和之后对受试者进行测试。最后一次测试获得的值[平均值（标准误）]表示为基线值的百分比，并分别呈现给对照组和实验组。股四头肌等长肌力[105.4（6.2）%，99.9（2.0）%；P = 0.69]、自主激活[107.1（6.0）%，101.1（2.3）%；P = 0.55]和自主力量上升的最大速率[95.4（6.0）%，103.3（7.7）%；P = 0.57]均未改善。电刺激期间的力量上升最大速率增加了[102.3（4.5）%，123.6（7.5）%；P = 0.02]。反向纵跳高度不受WBV影响[103.7（1.8）%，103.0（2.8）%；P = 0.71]。总之，在无额外训练负荷的情况下进行11周标准的双腿WBV训练，并未改善健康年轻受试者的股四头肌功能性力量。
