• Hamayun Zafar, Ahmad Alghadir, Shahnawaz Anwer, and Einas Al-Eisa.
• Department of Rehabilitation Sciences, College of Applied Medical Sciences King Saud University, Riyadh, Saudi Arabia; Department of Odontology, Clinical Oral Physiology, Umea University, Umea, Sweden.
• Arch Phys Med Rehabil. 2015 Aug 1; 96 (8): 1525-32.

ObjectiveTo examine the current evidence regarding the effects of whole-body vibration (WBV) training in individuals with knee osteoarthritis (OA).Data SourcesWe searched PubMed, CINAHL, Embase, Scopus, Physiotherapy Evidence Database (PEDro), and Science Citation Index for research articles published prior to January 2015 using the keywords whole body vibration, vibration training, and vibratory exercise in combination with the Medical Subject Heading osteoarthritis knee.Study SelectionThis meta-analysis was restricted to randomized controlled trials published in the English language. The quality of the selected studies was assessed by the PEDro Scale. The risk of bias was assessed using the Cochrane collaboration's tool in the domain-based evaluation. We also evaluated the quality of each study based on the criteria given by the International Society of Musculoskeletal and Neuronal Interactions for reporting WBV intervention studies, consisting of 13 factors.Data ExtractionDescriptive data regarding subjects, design, intervention, WBV parameters, outcomes, and conclusions were collected from each study by 2 independent evaluators. The mean and SD of the baseline and final endpoint scores for pain, stiffness, and function were extracted from the included studies.Data SynthesisA total of 83 studies were found in the search. Of these, 5 studies met the inclusion criteria and were further analyzed. Four of these 5 studies reached high methodologic quality on the PEDro Scale. Overall, studies demonstrated mixed results in favor of additive effects of WBV for reducing pain and improving function in knee OA. There was considerable variation in the parameters of the WBV included in this systematic review.ConclusionsWBV training reduces pain and improves function in individuals with knee OA.Copyright © 2015 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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