CYMO Research Institute, Valladolid, Spain.
School of Sport, Exercise & Nutrition, Massey University, New Zealand.
J Musculoskelet Neuronal Interact. 2021 Mar 1;21(1):59-67.
The purpose of the current study was to firstly examine the effects of different whole-body vibration (WBV) frequencies in the lower-body muscles when applied simultaneously during a bridge exercise. Secondly, determine if there were any sex differences in the lower-body muscles of WBV during the bridge.
Seven females and 7 males completed 2 familiarization and 1 test sessions. In the test session participants were randomized to complete one 30 s bout of a bridge exercise for 3 separate conditions followed by 3-min of rest. The 3 conditions (a) No-WBV (without WBV); (b) WBV-30 (30 Hz, low amplitude); (c) WBV-50 (50 Hz, low amplitude) were performed on a WBV platform. Muscle activity of the biceps femoris (BF), semitendinosus (ST), gluteus maximus (Gmax), multifidus muscle (MF) muscles were measured.
Muscle activity was increased with WBV in the BF and ST muscles at WBV-30 and WBV-50 conditions (p<0.05) vs. no-WBV. During No-WBV and WBV-50 conditions, males had a higher biceps femoris activity compared to females for (p<0.05) 45 and 27 %, respectively; however, during all conditions females had a high level of Gmax activity (57%) than males (p<0.05).
Additional vibration at 30 and 50 Hz during the bridge exercise could be a useful method to enhance hamstring muscle activity.
本研究的目的首先是检验在桥接运动中同时施加不同全身振动（WBV）频率对下半身肌肉的影响。其次，确定在桥接运动中，WBV 是否会对下半身肌肉产生性别差异。
7 名女性和 7 名男性完成了 2 次熟悉和 1 次测试。在测试期间，参与者随机分为 3 组，每组进行 30 秒的桥接运动，然后休息 3 分钟。3 种条件（a）无 WBV（无 WBV）；（b）WBV-30（30Hz，低振幅）；（c）WBV-50（50Hz，低振幅）在 WBV 平台上进行。测量二头肌（BF）、半腱肌（ST）、臀大肌（Gmax）和多裂肌（MF）的肌肉活动。
与无 WBV 相比，在 WBV-30 和 WBV-50 条件下，BF 和 ST 肌肉的 WBV 增加了肌肉活动（p<0.05）。在无 WBV 和 WBV-50 条件下，男性的二头肌活动高于女性，分别为（p<0.05）45%和 27%；然而，在所有条件下，女性的 Gmax 活动水平（57%）均高于男性（p<0.05）。
在桥接运动中额外的 30Hz 和 50Hz 振动可能是增强腘绳肌活动的有用方法。
