Contoured in-shoe foot orthoses increase mid-foot plantar contact area when compared with a flat insert during cycling

Bousie, Jaquelin A., Blanch, Peter, McPoil, Thomas G. and Vicenzino, Bill (2013) Contoured in-shoe foot orthoses increase mid-foot plantar contact area when compared with a flat insert during cycling. Journal of Science and Medicine in Sport, 16 1: 60-64. doi:10.1016/j.jsams.2012.04.006


Author Bousie, Jaquelin A.
Blanch, Peter
McPoil, Thomas G.
Vicenzino, Bill
Title Contoured in-shoe foot orthoses increase mid-foot plantar contact area when compared with a flat insert during cycling
Journal name Journal of Science and Medicine in Sport   Check publisher's open access policy
ISSN 1440-2440
1878-1861
Publication date 2013-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.jsams.2012.04.006
Volume 16
Issue 1
Start page 60
End page 64
Total pages 5
Place of publication Chatswood, NSW Australia
Publisher Elsevier
Collection year 2014
Language eng
Formatted abstract
Objectives: To determine the effect of contouring of an in-shoe foot orthosis on plantar contact area and surface pressure, as well as perceived comfort and support at the foot-orthosis interface during stationary cycling. Design: A randomised, repeated measures control study.

Methods: Twelve cyclists performed steady-state seated cycling at a cadence of 90rpm using a contoured orthosis and a flat insert of similar hardness. Contact area (CA) and plantar mean pressure (PP) were measured using the PEDAR® system, determined for seven discrete plantar regions and represented as the percentage of the total CA and PP respectively (CA% and PP%). Perceived comfort and support were rated using a visual analogue scale (VAS).

Results: The contoured orthosis produced a significantly greater CA% at the medial midfoot (p=0.001) and lateral midfoot (p=0.009) with a standardised mean difference (SMD) of 1.3 and 0.9 respectively. The contoured orthosis also produced a significantly greater PP% at the hallux (p=0.003) compared to the flat insert with a SMD of 1.1. There was a small non-significant effect (SMD<0.4) for the perceived comfort measures between conditions, but perceived support was significantly greater at the arch (p=0.000) and heel (p=0.013) with the contoured orthoses (SMD of 1.5 and 0.9, respectively).

Conclusions: Contoured orthoses influenced the plantar surface of the foot by increasing contact area as well as a perception of greater support at the midfoot while increasing relative pressure through the hallux when compared to a flat insert during stationary cycling. No difference in perceived comfort was noted
Keyword Cycling
Orthotic devices
Foot
Pedobarography
Biomechanics
Shoes
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Health and Rehabilitation Sciences Publications
 
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