Figure 1From: Patient-cooperative control increases active participation of individuals with SCI during robot-aided gait trainingControl algorithms. Control algorithms. Impedance control (with its special case position control) is illustrated on the left side. Path control is illustrated on the right side: (1) control action to bring the patient's leg back to the inside of the virtual tunnel, (2) "flow" of supportive torques, (3) "moving window" around time-dependent reference.Back to article page