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

Journal of Foot and Ankle Research 1/2013

A comparison of gait biomechanics of flip-flops, sandals, barefoot and shoes

Tijdschrift:
Journal of Foot and Ankle Research > Uitgave 1/2013
Auteurs:
Xiuli Zhang, Max R Paquette, Songning Zhang
Belangrijke opmerkingen

Electronic supplementary material

The online version of this article (doi:10.​1186/​1757-1146-6-45) contains supplementary material, which is available to authorized users.

Competing interests

There are no conflicts of financial and personal interests to declare.

Authors’ contributions

XZ and SZ contributed the conception and design of the study. XZ, SZ and MP contributed to the pilot, study data collections and data analysis. XZ drafted the manuscript and SZ and MP helped finalizing and revising the manuscript. All three authors approved the final version of the manuscript.

Abstract

Background

Flip-flops and sandals are popular choices of footwear due to their convenience. However, the effects of these types of footwear on lower extremity biomechanics are still poorly understood. Therefore, the objective of this study was to investigate differences in ground reaction force (GRF), center of pressure (COP) and lower extremity joint kinematic and kinetic variables during level-walking in flip-flops, sandals and barefoot compared to running shoes.

Methods

Ten healthy males performed five walking trials in the four footwear conditions at 1.3 m/s. Three-dimensional GRF and kinematic data were simultaneously collected.

Results

A smaller loading rate of the 1st peak vertical GRF and peak propulsive GRF and greater peak dorsiflexion moment in early stance were found in shoes compared to barefoot, flip-flops and sandals. Barefoot walking yielded greater mediolateral COP displacement, flatter foot contact angle, increased ankle plantarflexion contact angle, and smaller knee flexion contact angle and range of motion compared to all other footwear.

Conclusions

The results from this study indicate that barefoot, flip-flops and sandals produced different peak GRF variables and ankle moment compared to shoes while all footwear yield different COP and ankle and knee kinematics compared to barefoot. The findings may be helpful to researchers and clinicians in understanding lower extremity mechanics of open-toe footwear.

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Extra materiaal
Authors’ original file for figure 1
13047_2013_785_MOESM1_ESM.tiff
Authors’ original file for figure 2
13047_2013_785_MOESM2_ESM.tiff
Authors’ original file for figure 3
13047_2013_785_MOESM3_ESM.tiff
Literatuur
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