Patent ID: 8447401

Claim:
A medical system comprising: a medical device that delivers a therapy to a patient according to therapy parameters that change over time according to a plurality of therapy parameter sets; a sensor that generates a signal as a function of movement of the patient; and a processor that: monitors the signal generated by the sensor during the delivery of the therapy to the patient, identifies a plurality of movement events based on the signal during the delivery of the therapy to the patient, for each therapy parameter set in the plurality of therapy parameter sets, associates each of the movement events in the plurality of movement events that occur during the delivery of the therapy to the patient according that individual therapy parameter set with that individual therapy parameter set, and, for each therapy parameter set in the plurality of therapy parameter sets, determines a value of a metric based on the movement events associated with that individual therapy parameter set, wherein the value of the metric indicates an efficacy of that individual therapy parameter set.