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| 2022

Evaluation of the Foot Center of Pressure Estimation from Pressure Insoles during Sidestep Cuts, Runs and Walks

Estimating the foot center of pressure (CoP) position by pressure insoles appears to be an interesting technical solution to perform motion analysis beyond the force platforms surface area. The aim of this study was to estimate the CoP position from Moticon® pressure insoles during sidestep cuts, runs and walks. The CoP positions assessed from force platform data and from pressure insole data were compared. One calibration trial performed on the force platforms was used to localize the insoles in the reference coordinate system. The most accurate results were obtained when the motion performed during the calibration trial was similar to the motion under study. In such a case, mean accuracy of CoP position have been evaluated to 15±4 mm along anteroposterior (AP) axis and 8.5±3 mm along mediolateral (ML) axis for sidestep cuts, 18±5 mm along AP axis and 7.3±4 mm along ML axis for runs, 15±6 mm along AP axis and 6.6±3 mm along ML axis for walks. The accuracy of the CoP position assesment from pressure insole data increased with the vertical force applied to the pressure insole and with the number of pressure cells involved.


biomechanics, motion analysis, ground reaction forces, outside laboratory experiments, moticon


Pauline Morin, Antoine Muller, Charles Pontonnier, Georges Dumont

Institution / Department

University Rennes, CNRS, Rennes

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