1. A neural modulation system comprising: a first signal input structure adapted to receive a user input signal indicative of an instruction from a user regarding operation of a neural modulation system to deliver a stimulus configured to reversibly modulate neural activity in at least a portion of a peripheral neural structure of a subject, the user input signal transmitted from a user input device adapted to receive a user input indicative of the instruction from the user; a second signal input structure adapted to receive an activity signal indicative of an activity state of at least a portion of a body of the subject innervated by the peripheral neural structure from a sensor operatively connected to the second signal input structure; and a signal processing portion including circuitry for modifying operation of the neural modulation system responsive to receipt of the user input signal; circuitry for distinguishing a first activity state of the at least a portion of the body of the subject innervated by the peripheral neural structure from a second activity state of the at least a portion of the body of the subject innervated by the peripheral neural structure from the activity signal received at the second signal input structure; and circuitry for generating a stimulus control signal for driving production of the stimulus by a stimulus source, the stimulus configured to modulate neural activity in at least a portion of a peripheral neural structure of the subject during at least a portion of the first activity state.