Volume 7, Issue 3 ( Automn 2012, seventh Year 2012)                   Salmand 2012, 7(3): 38-44 | Back to browse issues page


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Memar R, Ghasempour H, Farjad Pezeshk S A, Shirazikhah M. The Symmetry in the Selected Plantar Pressure Distribution Parameters of the Elderly Subject With Lower Limb Discrepancy (LLD). Salmand. 2012; 7 (3) :38-44
URL: http://salmandj.uswr.ac.ir/article-1-519-en.html

1- PhD Faculty of Physical Education and Sport Sciences, Kharazmi University, Karaj, Iran. , m_raghad@yahoo.com
2- Master
3- MD-Geriatric MPH Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences. Tehran, Iran.
Abstract:   (16766 Views)

Objectives: lower leg discrepancy is a common problem which causes the changes in the plantar pressure distribution pattern during gait. Therefore, the purpose of this study was to study the symmetry in the various plantar pressure distribution parameters in the elderly subject with leg discrepancy.

Methods & Materials: Twenty-one elderly from Esfehan with leg discrepancy (1.5 to 3 cm) participated in this study. Plantar pressure distribution and other related parameters were measured in the five discrete steps for each limb by “emed 2” platforms. Three successful steps from five were selected and averaged, and the plantar areas were divided into 11 marks. For each mark peak force (BW%), peak pressure (Kpa), contact area, contact time, pressure time integral and force time integral were calculated. Descriptive statistics (mean and SD) to report the plantar pressure pattern, dependent sample t- test for comparison pressure data between long and short limb (P≤0.05) and symmetry index (SI%) for the symmetrical status in the selected plantar pressure data of the elderly subject with LLD were used.

Results: The consequence of dependent t-test showed that regardless of contact area in the forefoot region and 3th, 4th and 5th toes, there were no significant differences between long and short limb. Symmetry index (SI%) also revealed that the contact time in the short limbs heel was less than long limb and peak force and peak pressure in the short limb was less in mid foot region and was greater in forefoot region than long limb.

Conclusion: Given The Result Of This Study Showed That In The Short Limb, Initial Contact Time And Weight Acceptance Was Reduced, Which Cause The Increase Of The Pressure In The Forefoot And Also Which Causes The Increase Of Stress Fracture Risk In The Metatarsal Region. Therefore, It Is Suggested That LLD Subject Use Orthotic Or Shoes That Can Increase Their Heel Height And Balancing The Contact Time In The Short Limb To Resolve Their Gait Pattern Problems In Their Short Limb And Also To Eliminate The Compensating Mechanism Of Their Long Limb.

Full-Text [PDF 317 kb]   (1489 Downloads)    
Type of Study: Research | Subject: General
Received: 2012/07/10 | Accepted: 2012/09/10 | Published: 2012/10/01

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