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:: Volume 7, Issue 1 (5 2013) ::
mrj 2013, 7(1): 21-28 Back to browse issues page
Evaluation of comparison of hamstring and rectus femoris muscles stiffness and peak torque between anterior knee pain patients and healthy subjects
Mostafa Rahimi 1, Mahyar Salavati 2, Esmaeil Ebrahimi Takamjani 3, Loghman Mohammadi 4
1- مرکز جامع توانبخشی شرق , Alahghar_mr@Yahoo.com
2- فیزیوتراپی، استاد دانشگاه علوم بهزیستی و توانبخشی
3- دانشکدۀ توانبخشی دانشگاه علوم پزشکی تهران
4- مرکز جامع توانبخشی شرق
Abstract:   (6247 Views)
Background and Aim: This study was performed to compare the stiffness of hamstring and rectus femoris muscles in subjects with anterior knee pain and normal subjects.

Materials and Methods: In this non experimental and case-control study, 20 persons with anterior knee pain were selected simply from convenient sample and 20 healthy persons were selected by matching method. proximal and distal stiffness of hamstring and rectus femoris muscles were measured using an isokinetic device in the passive mode. Also, maximal concentric peak torque during flexion and extension movements of hip and knee, in two groups were compared by independent T-test and correlation analysis.

Results: There was no significant difference between anterior knee pain and proximal compartment of rectus femoris(P=0.320) and hamstring(P=0.125) stiffness, but there was significant difference between anterior knee pain and distal compartment of rectus femoris and hamstring stiffness (P<0.001). Significant relationship was found between anterior knee pain and muscles strength (P<0.001). No correlation was found between strength and stiffness of rectus femoris (P=0.356) and hamstring muscles (P=0.643) in patients group, but in healthy subjects this relationship was found (P<0.001). 

Conclusion: In patients with anterior knee pain, hamstring and rectus femoris muscles stiffness increased and muscle strength decreased. Increasing of muscle strength was effective on stiffness in healthy subjects, but there was no relation between them in patients group. Also rectus femoris and hamstring muscles possibly have different proximal and distal neuromuscular compartments.

Keywords: Muscle stiffness, Anterior knee pain, Compartment, Hamstring, Rectus femoris
Full-Text [PDF 736 kb]   (2015 Downloads)    
Type of Study: Research | Subject: General
Received: 2012/07/24 | Accepted: 2012/12/2 | Published: 2013/08/6
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Rahimi M, Salavati M, Ebrahimi Takamjani E, Mohammadi L. Evaluation of comparison of hamstring and rectus femoris muscles stiffness and peak torque between anterior knee pain patients and healthy subjects. mrj. 2013; 7 (1) :21-28
URL: http://mrj.tums.ac.ir/article-1-4-en.html


Volume 7, Issue 1 (5 2013) Back to browse issues page
فصلنامه توانبخشی نوین Journal of Modern Rehabilitation
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