A knee joint prosthesis includes a femoral component having an anterior side, a posterior side, a pair of laterally spaced condylar portions, and an intercondylar portion joining the condylar portions and including a recess. The resonator includes a deformable resonator reflector. The processing unit further outputs at least one of the athletic performance information and the route information to the wireless communication network during a human fitness activity via the wireless wide-area network transmitter. The openings border on later connection leads of the connection blank and cross-struts yet to be removed.