Sorrentino Riccardo G, Vovk Andrej, Šuput Dušan, Ioannou Leonidas G, Mekjavic Veronika, Fernandez-Gonzalo Rodrigo, Supej Matej, Mekjavic Igor B
Department of Automatics, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia.
Jozef Stefan International Postgraduate School, Jamova Cesta 39, 1000, Ljubljana, Slovenia.
Eur J Appl Physiol. 2025 Jul 1. doi: 10.1007/s00421-025-05856-5.
We evaluated whether vibration augmented muscle use during squat exercise with magnetic resonance imaging, with two methods: spin-spin relaxation time (T2 mapping), and volume analysis.Male participants (n = 13) visited the facility on two occasions. During the first visit, each participant completed a resistance exercise (RE) comprising four sets of 12 repetitions of triple extension squats. Before and immediately after completion of the exercise, magnetic resonance imaging of their thigh and calf muscles was performed. During the second visit, participants performed resistance vibration exercise (RVE) using the same protocol, but standing on a vibration plate that provided a whole-body vibration stimulus (20 Hz, 3.5 mm amplitude) during the exercise.RE promoted increased T2 in vastus lateralis, vastus medialis and vastus intermedius muscles (p < 0.0001). The same activation was observed for RVE, with no differences compared to RE. The volumetric method was less effective in assessing muscle activation. Only the vastus medialis and vastus intermedius muscle volumes were significantly greater post-exercise compared to pre-exercise for both RE (both muscles: p = 0.0009) and RVE (respectively: p = 0.005 and p = 0.009). No muscular activation was detected for calf either with T2 or volumetric method.Resistance exercise increased T2 and volume of some muscles of the thigh. The addition of whole-body vibration to resistance exercise does not enhance T2 relaxation time or volume accumulation.
我们采用两种方法，即自旋-自旋弛豫时间（T2 映射）和体积分析，通过磁共振成像评估深蹲运动期间振动是否会增加肌肉的使用。男性参与者（n = 13）分两次前往该机构。在第一次就诊时，每位参与者完成了一项阻力运动（RE），包括四组，每组 12 次重复的伸膝深蹲。在运动开始前和结束后立即对其大腿和小腿肌肉进行磁共振成像。在第二次就诊时，参与者使用相同的方案进行阻力振动运动（RVE），但在运动期间站在提供全身振动刺激（20Hz，3.5mm 振幅）的振动板上。RE 促使股外侧肌（vastus lateralis）、股内侧肌（vastus medialis）和股中间肌（vastus intermedius）的 T2 增加（p < 0.0001）。RVE 也观察到了相同的激活情况，与 RE 相比无差异。体积法在评估肌肉激活方面效果较差。对于 RE（两块肌肉：p = 0.0009）和 RVE（分别为：p = 0.005 和 p = 0.009），只有股内侧肌和股中间肌的体积在运动后比运动前显著增大。无论是用 T2 法还是体积法，均未检测到小腿肌肉的激活。阻力运动增加了大腿某些肌肉的 T2 和体积。在阻力运动中添加全身振动并不会增强 T2 弛豫时间或体积积累。
