Document Detail

Localised application of vibration improves passive knee extension in women with apparent reduced hamstring extensibility: a randomised trial.
MedLine Citation:
PMID:  21843831     Owner:  NLM     Status:  In-Data-Review    
QUESTION: Does the localised application of vibration over the hamstrings improve hamstring extensibility?
DESIGN: Randomised controlled trial with concealed allocation, intention-to-treat analysis, and assessor blinding.
PARTICIPANTS: 30 non-athletic females (aged 18-22 yrs) with limited hamstring extensibility bilaterally.
INTERVENTION: The experimental group received 3 sessions of localised application of vibration per week for 8 weeks. At each session, 3 sets of vibration were applied over the left and right hamstring muscles. The control group continued their usual daily activities. Both groups were asked to perform no specific exercises during the 8-week intervention period.
OUTCOME MEASURES: Hamstring muscle extensibility was measured bilaterally at baseline and at the end of the 8-week intervention period by measuring passive knee extension in supine with 90 deg of hip flexion.
RESULTS: At baseline, the mean lack of knee extension was 27 deg (SD 9) in the experimental group and 24 deg (SD 8) in the control group. At 8 weeks, this had changed to 13 deg (SD 5) in the experimental group and 23 deg (SD 9) in the control group. This was a significant treatment effect: mean between-group difference of 13 deg (95% CI 11 to 16).
CONCLUSION: An 8-week regimen of localised application of vibration over the hamstring muscles significantly reduces knee extension lack in women with reduced range on the passive knee extension test.
Amir Hoshang Bakhtiary; Elham Fatemi; Mohammad Amozade Khalili; Raheb Ghorbani
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of physiotherapy     Volume:  57     ISSN:  1836-9553     ISO Abbreviation:  J Physiother     Publication Date:  2011  
Date Detail:
Created Date:  2011-08-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528691     Medline TA:  J Physiother     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  165-71     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Australian Physiotherapy Association. Published by .. All rights reserved.
Semnan University of Medical Sciences, Iran.
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