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mrj 2016, 9 - : 151-158 Back to browse issues page
Comparing motor control strategies of the knee joint, in open and closed kinetic chain, in patients with patellofemoral pain syndrome and healthy females
Mahdieh Sadat Aleahmad1, Hossein Bagheri 2, Saeid Talebian Moghadam3, Gholam Reza Olyaei3, Mohammad Reza Hadian3
1- MSc Student, Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
2- PhD, Professor, Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran , hbagheri@tums.ac.ir
3- PhD, Professor, Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
Abstract:   (1461 Views)

Background and Aim: The structure and function of the hamstring and quadriceps can contribute to the development and process of patellofemoral pain syndrome. As open and closed kinetic chain exercises have different effects on the knee joint, the aim of the current study was to investigate motor control of knee joint in both kinetic chains according to voluntary response index aspect.

 

Materials and Methods: 12 healthy knees and 12 injured knees (6 females in each group) were examined. Surface electromyography were performed in knee muscles including vastus medialis oblique, rectus femoris, vastus lateralis and biceps femoris while the subjects were doing flexion-extension of knee joint by isokinetic dynamometer system and one leg semi-squat movement. Then voluntary response index was calculated.

 

Results: There were no significant difference between the patients and healthy groups (p>0.05). In the patient group, correlation between similarity index and magnitude was seen.

 

Conclusion: Probably in the low intensity patellofemoral syndromes, voluntary response index could not differentiate between healthy and the patient groups. In the patients with patellofemoral syndrome group, correlation between similarity index and magnitude may represent co-contraction in their muscles.

 

Keywords: Patellofemoral pain syndrome, Motor control, Voluntary response index, Surface electromyography

Keywords: Patellofemoral pain syndrome, Motor control, Voluntary response index, Surface electromyography
Full-Text [PDF 389 kb]   (920 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/03/6 | Accepted: 2016/03/6 | Published: 2016/03/6
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Aleahmad M S, Bagheri H, Talebian Moghadam S, Olyaei G R, Hadian M R. Comparing motor control strategies of the knee joint, in open and closed kinetic chain, in patients with patellofemoral pain syndrome and healthy females. mrj. 2016; 9 (S2) :151-158
URL: http://mrj.tums.ac.ir/article-1-5434-en.html
Volume 9 - Back to browse issues page
فصلنامه توانبخشی نوین Journal of Modern Rehabilitation
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