Effect of Resonant Frequency Vibration on Delayed Onset Muscle Soreness and Resulting Stiffness as Measured by Shear-Wave Elastography.

Jones GCBlotter JDSmallwood CDEggett DLCochrane DJFeland JBMarino JScudiero O2024-06-172024-06-172021-07-24Jones GC, Blotter JD, Smallwood CD, Eggett DL, Cochrane DJ, Feland JB. (2021). Effect of Resonant Frequency Vibration on Delayed Onset Muscle Soreness and Resulting Stiffness as Measured by Shear-Wave Elastography.. Int J Environ Res Public Health. 18. 15. (pp. 7853-).1661-7827https://mro.massey.ac.nz/handle/10179/69876This study utilized resonant frequency vibration to the upper body to determine changes in pain, stiffness and isometric strength of the biceps brachii after eccentric damage. Thirty-one participants without recent resistance training were randomized into three groups: a Control (C) group and two eccentric exercise groups (No vibration (NV) and Vibration (V)). After muscle damage, participants in the V group received upper body vibration (UBV) therapy for 5 min on days 1-4. All participants completed a visual analog scale (VAS), maximum voluntary isometric contraction (MVIC), and shear wave elastography (SWE) of the bicep at baseline (pre-exercise), 24 h, 48 h, and 1-week post exercise. There was a significant difference between V and NV at 24 h for VAS (p = 0.0051), at 24 h and 1-week for MVIC (p = 0.0017 and p = 0.0016, respectively). There was a significant decrease in SWE for the V group from 24-48 h (p = 0.0003), while there was no significant change in the NV group (p = 0.9341). The use of UBV resonant vibration decreased MVIC decrement and reduced VAS pain ratings at 24 h post eccentric damage. SWE was strongly negatively correlated with MVIC and may function as a predictor of intrinsic muscle state in the time course of recovery of the biceps brachii.(c) 2021 The Author/sCC BY 4.0https://creativecommons.org/licenses/by/4.0/bicepsdelayed onset muscle sorenesseccentricelastographyrecoveryshear-waveskeletal musclevibrationwhole-bodyElasticity Imaging TechniquesExerciseHumansIsometric ContractionMuscle StrengthMuscle, SkeletalMyalgiaVibrationEffect of Resonant Frequency Vibration on Delayed Onset Muscle Soreness and Resulting Stiffness as Measured by Shear-Wave Elastography.Journal article10.3390/ijerph181578531660-4601journal-article7853-https://www.ncbi.nlm.nih.gov/pubmed/34360146ARTN 7853ijerph18157853