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:: Volume 19, Number 3 ( Summer 2017, 19 (3). 505-711 2017) ::
koomesh 2017, 19(3): 543-553 Back to browse issues page
Correlation of lower limb muscles strength and flexibility with pain and function in females with Patellofemoral Pain
Atefe Omidi, Fateme Esfandiarpour *, Afshin Rezazade, Shahla Zahednejad
Abstract:   (557 Views)

Introduction: Reduced strength and flexibility of lower limb muscles have been proposed as contributing factors to Patellofemoral Pain (PFP). However, relationship of muscle strength and flexibility with pain and function in people with PFP is not well recognized, yet. The purpose of this study was to investigate the correlation of lower limb muscles strength and flexibility with pain and function in females with PFP.

Materials and Methods: In this cross-sectional study 35 females with PFP and 35 matched healthy females participated. Muscle strength, muscle flexibility, and pain were assessed using a dynamometer, an inclinometer, and visual analog scale, respectively. In this account,Kujalla questionnaire and step-down test were used to determine the function. The data were analyzed using an independent t -test, Pearson correlation test and stepwise regression.

Results: There were significantly lower strength of the knee extensors, the knee flexors, the hip abductors and lateral rotators in the PFP group as compared to the healthy group (P <0.001). The hip medial rotators, illiotibial band and quadriceps flexibility in the PFP group were significantly lower compared with the healthy group (P <0.05). Based on regression analysis, quadriceps flexibility and hip abductor muscle strength may predict Kujalla (R2=0.20) and step-down scores (R2=0.16) in females with PFP. No significant correlation was found between pain intensity, function and muscle strength.

Conclusion: lower limb muscles strength in females with PFP is significantly less than a healthy matched group. Qquadriceps muscle flexibility and the hip abductor muscles strength may predict Kujalla and step-down scores in females with PFP, respectively

Keywords: Patellofemoral Pain Syndrome, Pain, Muscle Strength, Muscle Tonus
Full-Text [PDF 812 kb]   (94 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/06/13 | Accepted: 2017/01/9 | Published: 2017/06/21
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Omidi A, Esfandiarpour F, Rezazade A, Zahednejad S. Correlation of lower limb muscles strength and flexibility with pain and function in females with Patellofemoral Pain. koomesh. 2017; 19 (3) :543-553
URL: http://koomeshjournal.semums.ac.ir/article-1-3391-en.html
Volume 19, Number 3 ( Summer 2017, 19 (3). 505-711 2017) Back to browse issues page
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