Figure A1.

Root mean squared errors (RMSE) of ground reaction force (GRF) prediction with increasing number of subjects included in training the models. Present data are means (solid line) of all subjects and conditions evaluated and standard deviations (clouds). The model errors for each subject were evaluated such that the values of 17 training subjects (the right−hand side of each plot) corresponds to the average leave−one−subject−out error across all conditions.