Volume 12, Issue 4 (Winter 2012)                   Vol. , No. , Season & Year , Serial No. | Back to browse issues page

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Razeghi M, Ebrahimi S, Yazdani F, Ghanbari A. The Comparison of Forces Applied to the Knee Extensor Mechanism during Stance Phase of Gait in Flat Footed Females Three Different in-Shoe Orthotics. jrehab. 2012; 12 (4) :85-92
URL: http://rehabilitationj.uswr.ac.ir/article-1-387-en.html
1- Shiraz University of Medical Sciences , razeghm@sums.ac.ir
2- Shiraz University of Medical Sciences
Abstract:   (9395 Views)

Objective: It has been postulated that subtalar position and movement would influence the function of the foot and the lower limb’s biomechanical alignment as a whole. The aim of this study was to compare the changes of force applied to the knee extensor mechanism of the female subjects while applying three different in-shoe orthotic appliances.

Materials & Methods: Feiss Line test was used to assign a group of 10 healthy female subjects aged at 19-25 years as flat foot group. Retro reflective calibration and tracking markers were placed on the subjects over anatomically relevant locations. Kinematic and kinetic data were collected by employing a three dimensional motion capture system (Qualisys®Ltd, Sweden) and a force platform (Kistler®, Switzerland) respectively, while subjects walked at their preferred speed with 3 different in-shoe orthotics: simple insole, insole with medial arch support, insole with medial arch support and medial heel wedge, and insole with medial arch support and lateral forefoot wedge.

Results: A statistically significant lower amount of the force applied to the extensor mechanism was found while applying medial arch support combined with lateral wedge (P=0.005).

Conclusion: It could be concluded that changes of the different foot insoles would alter the force applied to the knee extensor mechanism. Results of this study emphasize the immediate effect of applying a medial arch support combined lateral wedge on reduction of the force applied to the extensor mechanism through which decrease a tendency towards musculoskeletal injuries.

Full-Text [PDF 261 kb]   (753 Downloads)    
Type of Study: Original | Subject: General
Received: 29/12/2009 | Accepted: 16/04/2013 | Published: 21/02/2015

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