Fig. 4: Neuroprosthesis enables a biomimetic perturbation response.
From: Continuous neural control of a bionic limb restores biomimetic gait after amputation
a, Chronophotography and bionic ankle mechanics of obstacle crossing are shown, including the subsequent recovery step (n = 6 CTL and n = 4 AMI; bold lines, mean; shaded regions, s.e.m.). Note the increased dorsiflexion angle in swing kinematics in the AMI cohort during obstacle crossing compared with unperturbed walking and propulsive kinetics during gait recovery. b, Modified bionic swing kinematics for obstacle crossing are plotted compared with their unobstructed walking values (bars, mean; error bars, s.e.m.). c, Plots report neuromodulated bionic kinetics during the subsequent recovery step (bars, mean; error bars, s.e.m.). d, Perturbed walking speeds for CTL and AMI cohorts are shown (bars, mean; error bars, s.e.m.). For these analyses, two-sided unpaired t-tests were used (n = 6 CTL and n = 4 AMI, *P = 0.038, **P < 0.0052).
