Article

This study aimed to quantify the effect of combining the measurements from force
plates when a subject's foot comes in contact with more than one force plate. A
3-Dimensional Gait Analysis (3DGA) was performed on a subject walking barefoot.
Ten gait trials (good both) were captured where both subject's feet hit a single
force plate. Then 20 gait trials (two force plates) were captured where either
the right or left subject's foot was in contact with two force plates at a time.
Kinematics were computed with VICON Plugin Gait and kinetics with a BodyLanguage
(VICON, Oxford, UK) model that allowed the combination of force plate
measurements. The kinetics traces from both sets of data were compared using
variance component analysis. Results suggest that effects of how the moments were
calculated were at most a third of those arising from stride to stride
variability. This suggests that development of automated systems for determining
foot contact coupled with arrays of more and smaller force plates than are
commonly used might be useful to ensure the capture of good quality kinetic data
in a wide range of patients.
CI - Copyright 2009 Elsevier B.V. All rights reserved.

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