The influence of foot hyperpronation on pelvic biomechanics during stance phase of the gait: A biomechanical simulation study

(2018) The influence of foot hyperpronation on pelvic biomechanics during stance phase of the gait: A biomechanical simulation study. Proceedings of the Institution of Mechanical Engineers Part H-Journal of Engineering in Medicine. pp. 708-717. ISSN 0954-4119

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Abstract

Despite the theoretical link between foot hyperpronation and biomechanical dysfunction of the pelvis, the literature lacks evidence that confirms this assumption in truly hyperpronated feet subjects during gait. Changes in the kinematic pattern of the pelvic segment were assessed in 15 persons with hyperpronated feet and compared to a control group of 15 persons with normally aligned feet during the stance phase of gait based on biomechanical musculoskeletal simulation. Kinematic and kinetic data were collected while participants walked at a comfortable self-selected speed. A generic OpenSim musculoskeletal model with 23 degrees of freedom and 92 muscles was scaled for each participant. OpenSim inverse kinematic analysis was applied to calculate segment angles in the sagittal, frontal and horizontal planes. Principal component analysis was employed as a data reduction technique, as well as a computational tool to obtain principal component scores. Independent-sample t-test was used to detect group differences. The difference between groups in scores for the first principal component in the sagittal plane was statistically significant (p=0.01; effect size=1.06), but differences between principal component scores in the frontal and horizontal planes were not significant. The hyperpronation group had greater anterior pelvic tilt during 20-80 of the stance phase. In conclusion, in persons with hyperpronation we studied the role of the pelvic segment was mainly to maintain postural balance in the sagittal plane by increasing anterior pelvic inclination. Since anterior pelvic tilt may be associated with low back symptoms, the evaluation of foot posture should be considered in assessing the patients with low back and pelvic dysfunction.

Item Type: Article
Keywords: gait analysis musculoskeletal simulation pelvic biomechanics foot hyperpronation principal component analysis low-back-pain leg-length discrepancy standing position electromyographic activity dynamic simulations calcaneal eversion hip-joint walking pronation kinematics
Divisions: Musculoskeletal Research Center
Page Range: pp. 708-717
Journal or Publication Title: Proceedings of the Institution of Mechanical Engineers Part H-Journal of Engineering in Medicine
Journal Index: ISI
Volume: 232
Number: 7
Identification Number: https://doi.org/10.1177/0954411918778077
ISSN: 0954-4119
Depositing User: Zahra Otroj
URI: http://eprints.mui.ac.ir/id/eprint/7019

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