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Means are shown in bold with standard deviations in translucent. (a) Perturberator Robot's motor angle as a function of time, showing the 0.035 rad ramp perturbation with 75 ms ramp length and 25 ms hold. (b) resultant ankle angle and torque as a function of time, during the 100 ms analysis window. The model estimated torque profiles are also shown. Signals shown have been filtered by a bi-directional low-pass filter, with a cutoff frequency of 20 Hz.
