Volume 26, Issue 3 (Autumn-In Press 2025)
jrehab 2025, 26(3): 0-0 |
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Ethics code: IR.USWR.REC.1403.054
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omidi O, Biglarian A, Heydari Z, Baghaie Rodsari R. Evaluation of the Effect of Carved Insole on Kinematic Parameters of Gait in People with Leg Length Inequality. jrehab 2025; 26 (3)
URL: http://rehabilitationj.uswr.ac.ir/article-1-3572-en.html
URL: http://rehabilitationj.uswr.ac.ir/article-1-3572-en.html
1- Department of Orthotics and Prosthetics, School of Rehabilitation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
2- Department of Biostatics and Epidemiology, Social Determinants of Health Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
3- Department of Medicine and Rehabilitation, Hilal Iran Institute of Applied Scientific Higher Education, Tehran, Iran.
4- Department of Orthotics and Prosthetics, School of Rehabilitation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,roshanakbaghaei@yahoo.com
2- Department of Biostatics and Epidemiology, Social Determinants of Health Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
3- Department of Medicine and Rehabilitation, Hilal Iran Institute of Applied Scientific Higher Education, Tehran, Iran.
4- Department of Orthotics and Prosthetics, School of Rehabilitation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran. ,
Abstract: (1067 Views)
Objective: Lower limb length discrepancy is one of the most common musculoskeletal conditions, significantly affecting gait. Gait is considered a key factor in functional independence. Orthotic interventions are typically used for structural discrepancies up to 50 mm. Heel lifts and insoles are often recommended as minimally invasive interventions to compensate for mild structural differences in lower limb length. This study aims to evaluate the effect of custom-milled ethylene-vinyl acetate insoles on gait kinematic variables in individuals with structural lower limb length discrepancies of less than 20 mm.
Methods and materials: This study was conducted on 15 individuals with a mean age of 23 years, who had a congenital structural limb length discrepancy in their lower limbs. Changes in to pelvic, hip, knee, and ankle kinematic variables were recorded using a motion analysis system and pressure plate, both with and without the insole. The recorded data were collected into a file, and relevant charts were drawn using Microsoft Excel and MATLAB software. Then, the obtained data were analyzed using SPSS software version 23 with a significance level of 0.05 and paired t-test statistical analysis.
Results: In this study, significant changes were observed in the mean range of motion of the shorter leg's knee in the frontal plane (P=0.03), the longer leg's ankle in the sagittal plane (P=0.02), and the shorter leg's ankle in the frontal plane (P=0.00) during the stance phase. During the swing phase, significant changes were also noted in the mean range of motion of the shorter leg's knee in the sagittal plane (P=0.02) and the shorter leg's ankle in the frontal plane (P=0.00).
Conclusion: The customized insole improved the range of motion variables of the shorter leg's knee in the frontal plane, the mean range of motion of the longer leg's ankle in the sagittal plane, and the mean range of motion of the shorter leg's ankle in the frontal plane during the stance phase. During the swing phase, the mean range of motion of the shorter leg's knee in the sagittal plane and the mean range of motion of the shorter leg's ankle in the frontal plane also improved. These changes may indicate the positive effect of the corrective insole on gait parameters.
Methods and materials: This study was conducted on 15 individuals with a mean age of 23 years, who had a congenital structural limb length discrepancy in their lower limbs. Changes in to pelvic, hip, knee, and ankle kinematic variables were recorded using a motion analysis system and pressure plate, both with and without the insole. The recorded data were collected into a file, and relevant charts were drawn using Microsoft Excel and MATLAB software. Then, the obtained data were analyzed using SPSS software version 23 with a significance level of 0.05 and paired t-test statistical analysis.
Results: In this study, significant changes were observed in the mean range of motion of the shorter leg's knee in the frontal plane (P=0.03), the longer leg's ankle in the sagittal plane (P=0.02), and the shorter leg's ankle in the frontal plane (P=0.00) during the stance phase. During the swing phase, significant changes were also noted in the mean range of motion of the shorter leg's knee in the sagittal plane (P=0.02) and the shorter leg's ankle in the frontal plane (P=0.00).
Conclusion: The customized insole improved the range of motion variables of the shorter leg's knee in the frontal plane, the mean range of motion of the longer leg's ankle in the sagittal plane, and the mean range of motion of the shorter leg's ankle in the frontal plane during the stance phase. During the swing phase, the mean range of motion of the shorter leg's knee in the sagittal plane and the mean range of motion of the shorter leg's ankle in the frontal plane also improved. These changes may indicate the positive effect of the corrective insole on gait parameters.
Type of Study: Applicable |
Subject:
Orthotics & Prosthetics
Received: 25/11/2024 | Accepted: 1/07/2025 | Published: 23/09/2025
Received: 25/11/2024 | Accepted: 1/07/2025 | Published: 23/09/2025
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This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-By-NC), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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