Fig. 5From: Reactive stepping with functional neuromuscular stimulation in response to forward-directed perturbationsCombined jerk signal derived from the three body mounted accelerometers (Eq. 1) at 15% BW strength pull. Average time to cross the thresholds at 15% BW was 133 ms for the lower threshold (T1) and 210 ms for the higher threshold (T2)Back to article page