Abstract: Devices, systems, and techniques are disclosed for planning, updating, and delivering electric field therapy. In one example, a system comprises processing circuitry configured to receive a request to deliver alternating electric field (AEF) therapy and determine therapy parameter values that define the AEF therapy, wherein the AEF therapy comprises delivery of a first electric field and a second electric field. The processing circuitry may also be configured to control an implantable medical device to deliver the first electric field from a first electrode combination of implanted electrodes and control the implantable medical device to deliver, alternating with the first electric field, the second electric field from a second electrode combination of implanted electrodes different than the first electrode combination.

Abstract: Systems and methods for providing a reorientable pulley system. A tube, a first pulley and a second pulley are provided so that the second pulley may be selectively reoriented in relation to the first pulley while still maintaining an alignment between the hollow passageway of the tube and the channels of the first and second pulleys. An exercise device employing the pulley system is disclosed.