In one embodiment of the invention, the implantable stimulation device comprises {TAIL ~ a rate responsive pacemaker}, and the sensed physiological parameter used to adjust the rate threshold limit is also used to define a sensor indicated rate signal to control the pacing rate of {HEAD ~ the pacemaker} 
In one embodiment of the invention , the implantable stimulation device comprises { TAIL ~ a rate responsive pacemaker } , and the sensed physiological parameter used to adjust the rate threshold limit is also used to define a sensor indicated rate signal to control the pacing rate of { HEAD ~ the pacemaker }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD