A method for the reconstruction of ground reaction force-time characteristics during gait from force platform recordings of simultaneous foot falls

This paper proposes a method for the reconstruction of foot-ground reaction forces from force platform recordings of two consecutive footfalls. The re construction algorithm uses zero-derivative criterion (inflection point) to detect contralateral foot contacts and subtracts contralateral forces from the combined force-time curve in order to reconstruct force-time data. Exp erimental results suggest that the method can be applied to separate accura tely foot-specific gait forces from corrupted force-time data as a result o f incorrect stepping on a force platform.