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:: Volume 19, Issue 6 (2-2018) ::
J Shahrekord Univ Med Sci 2018, 19(6): 57-72 Back to browse issues page
The effects of a strengthening exercise program with EMG biofeedback to correct patellar alignment and reduce knee pain in women with patellofemoral pain syndrome
Banafsheh Mohammadi , Nader Farahpour , Masoud Riahi Samani , Mir Hossein Dezfoulian , Mohammad Amin Mahboubi
Student Physical Education and Sport Sciences Dept., Bu-Ali Sina University, Hamedan, I.R. Iran , banafsheh.mohammadi@yahoo.com
Abstract:   (1155 Views)
Background and aims: EMG biofeedback as a relatively new tool in helping to relieve muscle dysfunction has been proposed. The aim of this study was to investigate the effects of a strengthening exercise program with electromyographical biofeedback on the alignment corrections of the patella and the knee pain in patients with patella-femoral pain syndrome.
Methods: This research was a clinical trials study. 22 participants with patella-femoral pain syndrome were randomly divided into two equal groups (n=11). The first group underwent a strengthening exercise program with biofeedback electromyography. The second group also recieved a strengthening exercise program without biofeedback electromyography. Using VAS questionnaire, the knee pain was assessed. Radiography technique was also applied to evaluate the knee alignments including Sulcus, congruence and tilt angles and Q angle assessed by clinical tests. Pair t-test and Independent t-test  with SPSS were used for statistical analysis.
Results: The results showed that the knee pain, congruence and Q angle had significant decrease after the therapy in both groups (P<0.05). However, the patellar tilt displayed a significant decrease only in the strengthening exercise program in the biofeedback electromyography group (P<0.05). In between group comparisons, pain and Q angle reduction after strengthening exercise program with biofeedback electromyography group was significantly more than strengthening exercise program without biofeedback electromyography group (P<0.05).
Conclusion: Muscular strengthening exercise with electromyographical biofeedback displayed a better treatment outcome for pain reduction and correction of knee alignment. It seems that the provision of electromyographic biofeedback be preferred in comparison with the muscular strength training method without electromyographic biofeedback by creating more motivation for performing the exercises precisely and it can be used as a supportive tool in rehabilitation.
Keywords: Biofeedback electromyography, Patella-femoral pain syndrome, Q angle, Knee.
Full-Text [PDF 1200 kb]   (214 Downloads)    
Type of Study: Research | Subject: physiotrapy
Received: 2016/09/9 | Accepted: 2017/01/11 | Published: 2018/02/2
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Mohammadi B, Farahpour N, Riahi Samani M, Dezfoulian M H, Mahboubi M A. The effects of a strengthening exercise program with EMG biofeedback to correct patellar alignment and reduce knee pain in women with patellofemoral pain syndrome. J Shahrekord Univ Med Sci. 2018; 19 (6) :57-72
URL: http://journal.skums.ac.ir/article-1-3081-en.html


Volume 19, Issue 6 (2-2018) Back to browse issues page
مجله دانشگاه علوم پزشکی شهرکرد Journal of Shahrekord University of Medical Sciences
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