Open AccessPreliminary Evidence for Techniques Used to Optimally Align (Tune) Fixed Ankle-Foot Orthoses in Children
Author(s) -
E. Pratt,
Sally Durham,
David Ewins
Publication year - 2011
Publication title -
journal of prosthetics and orthotics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 33
eISSN - 1534-6331
pISSN - 1040-8800
DOI - 10.1097/jpo.0b013e3182173325
Subject(s) - barefoot , ankle , physical medicine and rehabilitation , medicine , orthodontics , moment (physics) , tibia , foot (prosody) , physical therapy , anatomy , physics , linguistics , philosophy , classical mechanics
An angle of 10° to 12° incline between the anterior border of the tibia (shank) and the vertical (SAV) at mid-midstance has been recommended as a starting point from which the “moment arm” at the knee can be optimized (tuned) in children wearing fixed ankle-foot orthoses. The aim of this study was to document the SAV and “moment arm” at the knee throughout stance in normally developing children. Data were collected from 11 healthy children aged 5 to 16 years, and SAV and “moment arm” at the knee plotted throughout stance, both barefoot and shod. The mean (standard deviation) SAV at mid-midstance was 11.4° (3.4°) barefoot and 10.5° (3.6°) shod. The mean (standard deviation) “moment arm” at the knee (normalized to leg length) at mid-midstance was 2.5% (1.7%) barefoot and 1.3% (2.4%) shod. The study provides preliminary evidence for current tuning techniques