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

Open Access 01-12-2011 | Oral presentation

Kinematics associated with foot pronation in individuals with patellofemoral pain syndrome: a case-control study

Auteurs: Christian J Barton, Pazit Levinger, Kate E Webster, Hylton B Menz

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

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Background

Excessive foot pronation during gait is frequently linked to patellofemoral pain syndrome (PFPS) development, due a proposed coupling of increased foot pronation with increased tibial and femoral internal rotation. However, there is a paucity of research which has compared kinematics associated with foot pronation between individuals with PFPS and controls. The aim of this study was to compare forefoot, rearfoot and tibial kinematics associated with foot pronation between individuals with PFPS and controls.

Methods

Twenty-six individuals with PFPS (5 males and 21 females) and 20 controls (4 males and 16 females) aged between 18 and 35 were recruited. Three dimensional motion data was collected during natural comfortable walking using the Vicon motion analysis system incorporating the Oxford Foot Model. Between-group comparisons were made for magnitude and timing of peak angles, and range of motion at the forefoot (dorsiflexion and abduction), rearfoot (eversion) and tibia (internal rotation).

Results

The PFPS group exhibited a trend towards slower walking velocity, (p = 0.07) so due to the potential of this to influence kinematics, all comparisons between the groups were adjusted for velocity. The PFPS group demonstrated earlier peak rearfoot eversion relative to the laboratory (30.4% versus 35.3% of the gait cycle, p = 0.01) and relative to the tibia (32.7% versus 36.5% of the gait cycle, p = 0.03). Effect sizes for these timing differences were -0.83 (-1.42 to -0.21) and -0.66 (-1.24 to -0.05), respectively. No significant differences were found for any variables associated with forefoot or tibial motion.

Conclusions

Earlier peak rearfoot eversion in individuals with PFPS may indicate more rapid foot pronation following heel strike when walking. Due to the potential influence of this on knee and patellofemoral joint loading, this may be a factor related to the pathomechanics of PFPS development.
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
Kinematics associated with foot pronation in individuals with patellofemoral pain syndrome: a case-control study
Auteurs
Christian J Barton
Pazit Levinger
Kate E Webster
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-O4