Dose–response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated foot type

Abstract Despite the widespread use of customised foot orthoses (FOs) for the pronated foot type there is a lack of reliable information on the dose–response effect on lower limb mechanics. This study investigated these effects in subjects with normal and pronated foot types. Customised FOs were adm...

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Bibliographic Details
Published in:Journal of biomechanics 2013-05, Vol.46 (9), p.1489-1495
Main Authors: Telfer, Scott, Abbott, Mandy, Steultjens, Martijn P.M, Woodburn, James
Format: Article
Language:English
Subjects:
3D printing
Adult
Biomechanical Phenomena
Computer-Aided Design
Design specifications
Female
Foot
Foot Orthoses
Gait analysis
Humans
Kinematics
Kinetics
Lower Extremity - physiology
Male
Multisegment foot
Orthoses
Physical Medicine and Rehabilitation
Pronation
Software
Young Adult
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Summary:Abstract Despite the widespread use of customised foot orthoses (FOs) for the pronated foot type there is a lack of reliable information on the dose–response effect on lower limb mechanics. This study investigated these effects in subjects with normal and pronated foot types. Customised FOs were administered to 12 participants with symptomatic pronated foot type and 12 age and gender matched controls. A computer-aided design (CAD) software was used to design nine FOs per participant with dose incrementally changed by varying only the rearfoot post angle. This was done in 2° increments from 6° lateral to 10° medial posting. A 3D printing method was used to manufacture the FOs. Quantification of the dose–response effect was performed using three-dimensional gait analyses for selected rearfoot and knee kinematics and kinetics. Under these experimental conditions, significant and linear effects of posting were seen for the peak ( p
ISSN:0021-9290
1873-2380
DOI:10.1016/j.jbiomech.2013.03.036