Systems and methods for providing biofeedback during assisted movement rehabilitation therapy while a user is engaged with an assisted movement exercise device are disclosed. In one example approach, a method eliminates passively evoked involuntary torque from the biofeedback. In another example approach, a method eliminates unintentional torque produced by contraction of muscles antagonistic to the assisted movement. In another example approach, a method compensates for the length-tension property of muscle so that the biofeedback relates to the user's level of effort.
