Effect of Different Insole Materials on Kinetic and Kinematic Variables of the Walking Gait in Healthy People.

Abstract:

BACKGROUND:There is a lack of data that could address the effects of off-the-shelf insoles on gait variables in healthy people. METHODS:Thirty-three healthy volunteers ranging in age from 18 to 35 years were included to this study. Kinematic and kinetic data were obtained in barefoot, shoe-only, steel insole, silicone insole, and polyurethane insole conditions using an optoelectronic three-dimensional motion analysis system. A repeated measures analysis of variance test was used to identify statistically significant differences between insole conditions. The alpha level was set at P < .05. RESULTS:Maximum knee flexion was higher in the steel insole condition (P < .0001) compared with the silicone insole (P = .001) and shoe-only conditions (P = .032). Reduced maximum knee flexion was recorded in the polyurethane insole condition compared with the shoe-only condition (P = .031). Maximum knee flexion measured in the steel insole condition was higher compared to the barefoot condition (P = .020). Higher maximum ankle dorsiflexion was observed in the barefoot condition, and there were significant differences between the polyurethane insole (P < .0001), silicone insole (P = .001), steel insole (P = .002), and shoe conditions (P = .004). Least and highest maximum ankle plantarflexion were detected in the steel insole and silicone insole conditions, respectively. Maximum ankle plantarflexion in the barefoot and steel insole conditions (P = .014) and the barefoot and polyurethane insole conditions (P = .035) were significant. There was no significant difference between conditions for ground reaction force or joint moments. CONCLUSIONS:Insoles made by different materials affect maximum knee flexion, maximum ankle dorsiflexion, and maximum ankle plantarflexion. This may be helpful during the decision-making process when selecting the insole material for any pathological conditions that require insole prescription.

journal_name

J Am Podiatr Med Assoc

authors

Özmanevra R,Angin S,Günal İH,Elvan A

doi

10.7547/16-175

subject

Has Abstract

pub_date

2018-09-01 00:00:00

pages

390-396

issue

5

eissn

8750-7315

issn

1930-8264

journal_volume

108

pub_type

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