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01-12-2013 | Research | Uitgave 1/2013 Open Access

Journal of Foot and Ankle Research 1/2013

The effect of shoe toe box shape and volume on forefoot interdigital and plantar pressures in healthy females

Tijdschrift:
Journal of Foot and Ankle Research > Uitgave 1/2013
Auteurs:
Helen Branthwaite, Nachiappan Chockalingam, Andrew Greenhalgh
Belangrijke opmerkingen

Electronic supplementary material

The online version of this article (doi:10.​1186/​1757-1146-6-28) contains supplementary material, which is available to authorized users.
Helen Branthwaite, Nachiappan Chockalingam and Andrew Greenhalgh contributed equally to this work.

Competing interests

All authors involved in this manuscript can declare that they had no competing interests.

Authors’ contributions

HB led this study and was involved in the study design, data collection and extraction including statistical analysis and prepared this manuscript. AG wrote the code to extract and process all the raw data. NC was involved in the design of the study and the preparation of the manuscript. All authors reviewed and agreed on the final manuscript before submission.

Abstract

Background

Ill-fitting footwear can be detrimental to foot health with the forefoot being an area for most discomfort. Studies on footwear have primarily examined sports or orthopaedic prescription shoes and little is known about the effects that everyday flat shoes have on the forefoot. The aim of this study was to investigate the effect of toe box shape in a popular slip-on pump on dorsal and plantar pressures with particular interest around the forefoot in a healthy female population.

Method

A convenience sample of 27 female participants with no known foot pathologies was recruited. After assessment of foot size, plantar foot pressure and interdigital pressures were recorded for each of the 3 different toe box styles; round, square and pointed. Participants walked at a self-selected speed over a 10 m walkway whilst wearing each of the 3 styles of shoe and also whilst barefoot. Processed and analysed data extracted included peak pressure, time to peak pressure, contact time and pressure time integral. ANOVA and Freidman analysis was used to test for statistical significance.

Results

Shoes with a round toe showed least pressure around the medial aspect of the toes whilst the pointed shoe had least pressure on the lateral toes. Contact times for the plantar regions were not altered in any shoe condition yet contact around the medial aspect of the toes was highest in the pointed shoe.

Conclusion

This study highlights that the shape of the toe box in footwear can significantly influence the amount of pressure applied to the forefoot. Furthermore, the contours of the shoe also have an impact on the contact time and pressure time integral around the forefoot and also the peak plantar pressure in the toe region. The changes observed could be significant in the development of pathology in certain footwear toe box shapes. Consideration should be given to footwear design around the toe box to improve fit and reduce pressure. Further work is required to investigate the effect of toe box shape and volume on a pathological population with pressure related lesions.

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Extra materiaal
Authors’ original file for figure 1
13047_2013_569_MOESM1_ESM.pdf
Authors’ original file for figure 2
13047_2013_569_MOESM2_ESM.pdf
Authors’ original file for figure 3
13047_2013_569_MOESM3_ESM.pdf
Authors’ original file for figure 6
13047_2013_569_MOESM4_ESM.docx
Literatuur
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