A laboratory insole for analysis of sensor placement to determine ground reaction force and ankle moment in patients with stroke.
An insole system was constructed with 32 sensors inside a size 10 men's shoe. This system allows evaluation of the contributions of individual sensors spread throughout the surface area of the insole. The kinetic variables of interest in this initial study are ground reaction force and anterior-posterior ankle moment. Use of all 32 sensors are able to replicate the shape of the ground reaction force and ankle moment in a stroke patient who has regained a more normal gait, but less so in a stroke patient with impaired gait. Subsets of sensors can now be evaluated in order to ultimately identify an optimum set of sensors for determining kinetic variables necessary to classify presence or absence of a particular gait abnormality or other pathology.
Dept. of Mechanical Engineering, University of Utah, Salt Lake City, UT 84121, USA. adam.howell@utah.edu
Adam M
AM
Howell
Toshiki
T
Kobayashi
Teri Rosenbaum
TR
Chou
Wayne
W
Daly
Michael
M
Orendurff
Stacy J Morris
SJ
Bamberg
D000842:Ankle / Q000503:physiopathology*; D015374:Biosensing Techniques; D016022:Case-Control Studies; D006801:Humans; D007700:Kinetics; D020521:Stroke / Q000503:physiopathology*