Aguilera-Castells Joan, Buscà Bernat, Arboix-Alió Jordi, Miró Adrià, Fort-Vanmeerhaeghe Azahara, Peña Javier
Faculty of Psychology, Education Sciences, and Sport Blanquerna, Ramon Llull University, Barcelona, Spain.
School of Health Science Blanquerna, Ramon Llull University, Barcelona, Spain.
Front Physiol. 2021 Aug 11;12:712471. doi: 10.3389/fphys.2021.712471. eCollection 2021.
Traditionally in strength and conditioning environments, vibration has been transmitted using platforms, barbells, dumbbells, or cables but not suspension devices. This study aimed to examine the effects on the lower limb of applying superimposed vibration on a suspension device. Twenty-one physically active men and women performed supine bridge and hamstring curl exercises in three suspended conditions (non-vibration, vibration at 25 Hz, and vibration at 40 Hz). In each exercise condition, the perceived exertion scale for resistance exercise (OMNI-Res) was registered, and the electromyographic signal was assessed for gastrocnemius (medialis and lateralis), biceps femoris, semitendinosus, gluteus maximus, and rectus femoris. A linear mixed model indicated a significant fixed effect for vibration at 25 Hz and 40 Hz on muscle activity in suspended supine bridge ( < 0.05), but no effect for suspended hamstring curl ( > 0.05). Likewise, the Friedman test showed a significant main effect for vibration at 25 Hz and 40 Hz in suspended supine bridge ( < 0.05) but not for suspended hamstring curl ( > 0.05) on OMNI-Res. analysis for suspended supine bridge with vibration at 25 Hz showed a significant activation increase in gastrocnemius lateralis ( = 0.008), gastrocnemius medialis ( = 0.000), semitendinosus ( = 0.003) activity, and for semitendinosus under 40 Hz condition ( = 0.001) compared to the non-vibration condition. Furthermore, OMNI-Res was significantly higher for the suspended supine bridge at 25 Hz ( = 0.003) and 40 Hz ( = 0.000) than for the non-vibration condition. Superimposed vibration at 25 Hz elicits a higher neuromuscular response during the suspended supine bridge, and the increase in vibration frequency also raises the OMNI-Res value.
在传统的力量与体能训练环境中，振动是通过平台、杠铃、哑铃或绳索来传递的，但尚未使用过悬吊装置。本研究旨在探讨在悬吊装置上施加叠加振动对下肢的影响。21名有体育锻炼习惯的男性和女性在三种悬吊条件下（无振动、25赫兹振动和40赫兹振动）进行仰卧桥和腿弯举练习。在每种练习条件下，记录阻力运动的主观用力程度量表（OMNI-Res），并评估腓肠肌（内侧和外侧）、股二头肌、半腱肌、臀大肌和股直肌的肌电信号。线性混合模型表明，在悬吊仰卧桥中，25赫兹和40赫兹的振动对肌肉活动有显著的固定效应（P<0.05），但在悬吊腿弯举中无效应（P>0.05）。同样，弗里德曼检验显示，在悬吊仰卧桥中，25赫兹和40赫兹的振动对OMNI-Res有显著的主效应（P<0.05），但在悬吊腿弯举中无效应（P>0.05）。对25赫兹振动的悬吊仰卧桥进行的分析显示，与无振动条件相比，外侧腓肠肌（P = 0.008）、内侧腓肠肌（P = 0.000）、半腱肌（P = 0.003）的活动显著增加，在40赫兹条件下半腱肌的活动也显著增加（P = 0.001）。此外，25赫兹（P = 0.003）和40赫兹（P = 0.000）的悬吊仰卧桥的OMNI-Res显著高于无振动条件。25赫兹的叠加振动在悬吊仰卧桥过程中引发更高的神经肌肉反应，并且振动频率的增加也提高了OMNI-Res值。
