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Gepubliceerd in: Journal of Foot and Ankle Research 1/2012

Open Access 01-12-2012 | Oral presentation

Effect of thong style flip-flops on children’s midfoot motion during gait

Auteurs: Angus Chard, Andrew Greene, Adrienne Hunt, Benedicte Vanwanseele, Richard Smith

Gepubliceerd in: Journal of Foot and Ankle Research | bijlage 1/2012

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Background

Thong style flip-flop footwear (TH) and sandals are the preferred footwear of 22% of Australian children, however little is known about the effects of wearing TH on the growing child [1]. Previous research has shown TH reduces children’s hallux dorsiflexion prior to contact during walking and jogging and at toe-off whilst jogging [2]. Adult studies have shown TH alters barefoot motion with reduced eversion [3] and reduce peak plantar-pressure at the hallux, metatarsal heads and calcaneus [4].The influence of TH on children’s midfoot kinematics may have important ramifications for children’s developing feet. This study aims to describe the effect of TH on children’s midfoot motion during walking and jogging.

Materials and methods

Seven healthy children, mean age 10.47±1.98 years were recruited from Sydney Australia. Participants conducted five walking trials and five jogging trials while barefoot and wearing TH in random order. A fourteen camera, three-dimensional motion analysis system was used to collect kinematic data. Markers located at navicular, first and fifth metatarsal phalangeal joints, hallux and a rearfoot wand, defined three foot segments: rearfoot, forefoot and hallux. The midfoot joint was defined as the articulation between rearfoot and forefoot segments.

Results

A repeated measure ANOVA found no significant effect of thongs while walking when compared to barefoot although a trend was seen towards a more dorsiflexed, everted and abducted midfoot. A significant effect of TH while jogging was seen during propulsion in the frontal plane (Figure 1) with the forefoot more inverted (P=0.016) in the TH condition -4.5±6.3SD compared with BF 3.8±5.0SD at toe-off, while sagittal and transverse planes were not significantly different.

Conclusions

During the propulsive phase significantly greater forefoot inversion was seen while jogging wearing TH. Results reported are early findings of an ongoing project. With greater participant numbers the trends of greater forefoot extension, eversion and abduction while walking may become significant.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Literatuur
1.
go back to reference Penkala S: Footwear choices for children: knowledge, application and relationships to health outcomes. Sydney, University of Sydney Penkala S: Footwear choices for children: knowledge, application and relationships to health outcomes. Sydney, University of Sydney
2.
go back to reference Chard A, Smith R, et al: Effect Thong Style Flip-Flop Footwear On Children’s Hallux Sagittal Plane Motion During Gait. ISBS. 2011, Brussels, Belgium Chard A, Smith R, et al: Effect Thong Style Flip-Flop Footwear On Children’s Hallux Sagittal Plane Motion During Gait. ISBS. 2011, Brussels, Belgium
3.
go back to reference Shroyer J, et al: Effect of Various Thong Flip-flps on Pronation and Eversion During Midstance. ACSM Confrence. 2010, Baltimore, Maryland, USA Shroyer J, et al: Effect of Various Thong Flip-flps on Pronation and Eversion During Midstance. ACSM Confrence. 2010, Baltimore, Maryland, USA
4.
go back to reference Carl TJ, Barrett SL: Computerized analysis of plantar pressure variation in flip-flops, athletic shoes, and bare feet. J Am Podiatr Med Assoc. 2008, 98: 374-378. CrossRefPubMed Carl TJ, Barrett SL: Computerized analysis of plantar pressure variation in flip-flops, athletic shoes, and bare feet. J Am Podiatr Med Assoc. 2008, 98: 374-378. CrossRefPubMed
Metagegevens
Titel
Effect of thong style flip-flops on children’s midfoot motion during gait
Auteurs
Angus Chard
Andrew Greene
Adrienne Hunt
Benedicte Vanwanseele
Richard Smith
Publicatiedatum
01-12-2012
Uitgeverij
BioMed Central
Gepubliceerd in
Journal of Foot and Ankle Research / Uitgave bijlage 1/2012
Elektronisch ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-5-S1-O19

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