A prototype system for testing force platform dynamic performance.
Previous work on in-situ calibration of force platforms has focused primarily on behaviour under static loading conditions. The prototype described in this paper is a dynamic system, designed to approximate the loading profile generated during human gait. The design, construction and performance of an oscillating lead pendulum assembly is described; including three-dimensional visual performance assessment and rigorous multi-component force analysis. No significant difference was found between measured data and a theoretical profile for vertical force and angular displacement. A significant difference was found for the horizontal force component. The authors believe that further development of this prototype model will allow accurate routine dynamic calibration.
Fairburn
P S
PS
Clinical Measurements Laboratory, Regional Rehabilitation Centre (RRC), 91 Oak Tree Lane, Selly Oak, B29 6JA, Birmingham, UK. paul.fairburn@bscht.wmids.nhs.uk
Palmer
R
R
Whybrow
J
J
Fielden
S
S
Jones
S
S
D055592:Biophysical Phenomena; D001703:Biophysics; D002138:Calibration; D005684:Gait; D006801:Humans