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Paper Information

Journal:   MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI)   2017 , Volume 31 , Number 1; Page(s) 0 To 0.
 
Paper: 

The effect of whole-body vibration training on the lower extremity muscles' electromyographic activities in patients with knee osteoarthritis

 
DOI: 

10.14196/mjiri.31.107

 
Author(s):  ABBASI EBRAHIM, KAHRIZI SEDIGHEH*, Razi Mohammad, FAGHIHZADEH SOGHRAT
 
* Department of Physiotherapy, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
 
Abstract: 
Background: Whole-Body Vibration Training (WBVT) is a novel neuromuscular training method that has been recently developed as a rehabilitation tool. The purpose of this study was to determine whether WBVT is effective on electromyographic activity of the muscles of the lower limbs in patients with knee osteoarthritis. Methods: The study was designed as a single blinded randomized clinical trial (IRCT201601171637N5), 45 patients with knee osteoarthritis were randomly assigned to three groups; WBVT (n = 15) receiving 12 sessions vibration therapy, control group (n =15) doing two exercise in the home and placebo (n =15) doing exercise like WBVT group on-off vibration system. Electromyographic activities of vastus lateralis and vastus medialis, semitendinosus, gastrocnemius and soleus were evaluated pre and post intervention. The pairedsamples t-test and ANOVA were applied respectively to determine the differences in each group and among the groups (P≤ 0. 05). Results: The RMS value of vastus medialis in semi squat position in placebo group (p=0. 024), vastus lateralis in SLR position in WBVT group (p=0. 037), soleus in knee flexion in WBVT group (p=0. 018), semitendinosus in knee flexion in WBVT group (p=0. 007) and RMS response of Semitendinosus in ankle plantar flexion in control group (p=0. 047) were revealed significant differences between the pre-and post-intervention. The ANOVA test confirmed the significant differences between the studied groups according to the EMG activity of vastus medialis in semi squat position (p=0. 045), semitendinosus in semi squat position (p=0. 046) and in plantar flexion position (p=0. 015) and also soleus in plantar flexion position (p=0. 003). Conclusions: The findings of this study showed the beneficial effects of WBVT in the improvement of the muscles RMS values in the patients with knee OA especially muscles' progression rates in a four-week period.
 
Keyword(s): Knee osteoarthritis,Whole body vibration training,Electromyography,Randomized clinical trial
 
References: 
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