METHOD AND APPARATUS TO INCREASE STROKE VOLUME BY SYNCHRONIZING / MODULATING HEART RATE WITH ACTIVITY RATE

摘要

A method of synchronizing a heart rate with an activity rate of a patient includes determining the activity rate of the patient. The method also includes synchronizing a pacing pulse with a phase of the activity rate to improve a cardiac stroke volume of the patient. The synchronizing includes lowering the heart rate during down motion associated with the activity rate and increasing the heart rate during an up motion associated with the activity rate when a stride rate is slower than a target heart rate.