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Title: How can push-off be preserved during use of an ankle foot orthosis in children with hemiplegia? A prospective controlled study
Authors: Desloovere, Kaat ×
Molenaers, Guy
Van Gestel, Leen
Huenaerts, Catherine
Van Campenhout, Anja
Callewaert, Barbara
Van De Walle, Patricia
Seyler, J #
Issue Date: Sep-2006
Series Title: Gait & posture vol:24 issue:2 pages:142-151
Abstract: Several studies indicated that walking with an ankle foot orthosis (AFO) impaired third rocker. The purpose of this study was to evaluate the effects of two types of orthoses, with similar goal settings, on gait, in a homogeneous group of children, using both barefoot and shoe walking as control conditions. Fifteen children with hemiplegia, aged between 4 and 10 years, received two types of individually tuned AFOs: common posterior leaf-spring (PLS) and Dual Carbon Fiber Spring AFO (CFO) (with carbon fibre at the dorsal part of the orthosis). Both orthoses were expected to prevent plantar flexion, thus improving first rocker, allowing dorsiflexion to improve second rocker, absorbing energy during second rocker, and returning it during the third rocker. The effect of the AFOs was studied using objective gait analysis, including 3D kinematics, and kinetics in four conditions: barefoot, shoes without AFO, and PLS and CFO combined with shoes. Several gait parameters significantly changed in shoe walking compared to barefoot walking (cadence, ankle ROM and velocity, knee shock absorption, and knee angle in swing). The CFO produced a significantly larger ankle ROM and ankle velocity during push-off, and an increased plantar flexion moment and power generation at pre-swing compared to the PLS (<0.01). The results of this study further support the findings of previous studies indicating that orthoses improve specific gait parameters compared to barefoot walking (velocity, step length, first and second ankle rocker, sagittal knee and hip ROM). However, compared to shoes, not all improvements were statistically significant.
URI: 
ISSN: 0966-6362
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group for Neuromotor Rehabilitation
Faculty of Kinesiology and Rehabilitation Sciences - miscellaneous
Orthopaedics Section (-)
× corresponding author
# (joint) last author

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