Calculate Center of Mass position from Ground Reaction Forces
Inputs
GRF - Ground reaction force (N) from single forceplate. NB: In case of multiple forceplates e.g. split-belt treadmill, combine the 2 GRFs to a single GRF, for more info see Kwon3D: http://www.kwon3d.com/theory/grf/multi.html
Cop - Center of pressure (m) from single forceplate. NB: In case of multiple forceplates e.g. split-belt treadmill, combine the 2 Cops to a single Cop, for more info see Kwon3D: http://www.kwon3d.com/theory/grf/multi.html
Time - Time array corresponding to the GRF and Cop vector.
sf - Sample frequency (Hz)
Weight - Subject weight (kg)
Output
Com - Mediolateral center of mass position
Originally written by Tom J.W. Buurke (2017)
Department of Human Movement Sciences, University Medical Center Groningen, University of Groningen, The Netherlands
Department of Movement Sciences, KU Leuven, Leuven, Belgium
Version 1.0 - Changelog (August 15 2017):
First version
Version 1.1 - Changelog (January 5 2022):
Cleaned up for publication