Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25921
Title: Comparison of custom-moulded ankle orthosis with hinged joints and off-the-shelf ankle braces in preventing ankle sprain in lateral cutting movements
Authors: Lee, WCC 
Kobayashi, T
Choy, BTS
Leung, AKL 
Keywords: ankle
inversion
orthosis
Sprain
subtalar
Issue Date: 2012
Publisher: SAGE Publications
Source: Prosthetics and orthotics international, 2012, v. 36, no. 2, p. 190-195 How to cite?
Journal: Prosthetics and orthotics international 
Abstract: Background: A custom moulded ankle orthosis with hinged joints potentially offers a better control over the subtalar joint and the ankle joint during lateral cutting movements, due to total contact design and increase in material strength.Objectives: To test the above hypothesis by comparing it to three other available orthoses.Study Design: Repeated measures.Methods: Eight subjects with a history of ankle sprains (Grade 2), and 11 subjects without such history performed lateral cutting movements in four test conditions: 1) non-orthotic, 2) custom-moulded ankle orthosis with hinges, 3) Sport-Stirrup, and 4) elastic ankle sleeve with plastic support. A VICON motion analysis system was used to study the motions at the ankle and subtalar joints.Results: The custom-moulded ankle orthosis significantly lowered the inversion angle at initial contact (p = 0.006) and the peak inversion angle (p = 0.000) during lateral cutting movements in comparison to non-orthotic condition, while the other two orthoses did not. The three orthoses did not affect the plantarflexion motions, which had been suggested by previous studies to be important in shock wave attenuation.Conclusions: The custom-moulded ankle orthosis with hinges could better control inversion and thus expected to better prevent ankle sprain in lateral cutting movements.Clinical relevanceCustom-moulded ankle orthoses are not commonly used in preventing ankle sprains. This study raises the awareness of the use of custom-moulded ankle orthoses which are expected to better prevent ankle sprains.
URI: http://hdl.handle.net/10397/25921
ISSN: 0309-3646
EISSN: 1746-1553
DOI: 10.1177/0309364611435500
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