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Gepubliceerd in: Journal of Foot and Ankle Research 1/2011

Open Access 01-12-2011 | Poster presentation

Flat-arched feet display altered foot kinematics compared to normal-arched feet during walking

Auteurs: Pazit Levinger, George S Murley, Christian J Barton, Matthew P Cotchett, Simone R McSweeney, Hylton B Menz

Gepubliceerd in: Journal of Foot and Ankle Research | bijlage 1/2011

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Background

Foot posture is thought to influence predisposition to overuse injuries of the lower limb. Although the mechanisms underlying this proposed relationship are unclear, it is thought that altered foot kinematics may play a role. Therefore, this study was designed to investigate differences in foot motion between people with normal and flat-arched feet using the Oxford Foot Model (OFM).

Methods

Nineteen participants with normal- and flat-arched feet were recruited for this study (10 with normal and 9 with flat-arched feet). A foot screening protocol comprising measurements from weightbearing antero-posterior and lateral foot radiographs were used to classify foot posture. Tri-planar motion of the tibia, rearfoot and forefoot during barefoot walking were recorded from 10 cameras and evaluated using a three-dimensional motion analysis system incorporating a multi-segment foot model (OFM).

Results

During midstance phase, participants with flat-arched feet demonstrated greater forefoot abduction (-12.9° ± 6.9° vs -1.8° ± 6.3°; p = 0.002), rearfoot internal rotation (10.6° ± 7.5° vs -0.2° ± 9.9°; p = 0.018) and a trend towards increased rearfoot eversion (-5.8° ± 4.4° vs -2.5° ± 2.6°; p = 0.06), compared to those with normal-arched feet. During late stance, participants with flat-arched feet demonstrated greater peak forefoot plantarflexion (-13.7° ± 5.6° vs -6.5° ± 3.7°; p = 0.004) and decreased peak forefoot adduction (-7.0° ± 9.2° vs 5.6° ± 7.3°; p = 0.004) compared to those with normal-arched feet.

Conclusions

The findings of this study indicate that there are significant differences in sagittal and transverse plane movement of the forefoot and the transverse plane movement of the rearfoot between participants with normal- and flat-arched feet. These findings support the notion that those with flat-arched feet demonstrate altered motion associated with greater pronation during gait; factors that may increase the risk of overuse injury.
Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution License ( https://​creativecommons.​org/​licenses/​by/​2.​0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Metagegevens
Titel
Flat-arched feet display altered foot kinematics compared to normal-arched feet during walking
Auteurs
Pazit Levinger
George S Murley
Christian J Barton
Matthew P Cotchett
Simone R McSweeney
Hylton B Menz
Publicatiedatum
01-12-2011
Uitgeverij
BioMed Central
Gepubliceerd in
Journal of Foot and Ankle Research / Uitgave bijlage 1/2011
Elektronisch ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-4-S1-P43