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

Open Access 01-12-2012 | Oral presentation

The effect of external ankle support on knee and ankle joint loading in netball players

Auteurs: Benedicte Vanwanseele, Max Stuelcken, Andy Greene, Richard Smith

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

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Background

External ankle support has been successfully used to prevent ankle sprains [1]. However, some recent studies [2, 3] have indicated that reducing ankle range of motion can place larger loads on the knee and increase the risk of knee injuries. The aim of this study is to investigate the effect of external ankle support (braces and high top shoes) on ankle kinematics and knee kinetics in high performance netball players.

Materials and methods

Eleven high performance netball players were recruited from NSW Institute of Sport. A 14-camera motion analysis system was used to synchronously collect three-dimensional video and force plate data. Twenty-four retro-reflective markers were attached to anatomical landmarks to allow the formation of rearfoot, forefoot, shank, thigh, and pelvis segments. Each player performed a single-leg-landing whilst receiving a chest pass. There were three conditions: a standard netball shoe (Ignite 3, ASICS), a standard netball shoe in conjunction with a semi-rigid ankle brace, and a high top basketball shoe (Jordan, NIKE). Five trials were analysed for each condition. Comparisons between the brace and the standard shoe conditions; and between the high top and the standard shoe conditions were made using the Wilcoxon sign-rank test.

Results

The maximal ankle eversion angle was significantly larger in the standard shoe condition compared to the brace condition (12.35±8.62 vs 7.79±4.60 degrees, p=0.038) (Figure 1). The same trend was observed when comparing the standard and high top shoe conditions (8.79±3.87 degrees) but significance was not reached.
None of the moments were significantly different between the conditions but there was a trend for an increased ankle plantarflexion moment and hip flexor moment in the brace condition compared to the standard shoes.

Conclusions

Although the ankle eversion angle was restricted by use of an external brace, no changes in the knee and ankle joint moments were observed.
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 Quinn K, Parker P, de Bie R, Rowe B, Handoll H: Interventions for preventing ankle ligament injuries. Cochrane Database Syst Rev. 2000, 2: CD000018- PubMed Quinn K, Parker P, de Bie R, Rowe B, Handoll H: Interventions for preventing ankle ligament injuries. Cochrane Database Syst Rev. 2000, 2: CD000018- PubMed
2.
go back to reference Venesky K, Docherty CL, Dapena J, Schrader J: Prophylactic ankle braces and knee varus-valgus and internal-external rotation torque. J Athl Train. 2006, 41: 239-244. PubMedCentralPubMed Venesky K, Docherty CL, Dapena J, Schrader J: Prophylactic ankle braces and knee varus-valgus and internal-external rotation torque. J Athl Train. 2006, 41: 239-244. PubMedCentralPubMed
3.
go back to reference Mündermann A, Nigg BM, Humble RN, Stefanyshyn DJ: Foot orthotics affect lower extremity kinematics and kinetics during running. Clin Biomech (Bristol, Avon). 2003, 18: 254-262. 10.1016/S0268-0033(02)00186-9. CrossRef Mündermann A, Nigg BM, Humble RN, Stefanyshyn DJ: Foot orthotics affect lower extremity kinematics and kinetics during running. Clin Biomech (Bristol, Avon). 2003, 18: 254-262. 10.1016/S0268-0033(02)00186-9. CrossRef
Metagegevens
Titel
The effect of external ankle support on knee and ankle joint loading in netball players
Auteurs
Benedicte Vanwanseele
Max Stuelcken
Andy Greene
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-O51

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