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Fig. 2. Representative GRF recordings from (A) a large acceleration trial, (B) a
steady speed trial and (C) a large deceleration trial, normalized to
percentage of stance time. The insets show the average limb position at the
time of first contact, midstance and last contact relative to the orientation
of the GRF vector (red broken line). Note the broken red line does not
represent the magnitude of the GRF.