CHICAGO & SAN FRANCISCO--(BUSINESS WIRE)--AliveCor, the developer of a breakthrough mobile electrocardiogram (ECG) recorder, today announced results from a study that demonstrated how the company’s ECG monitoring device is intuitive and allows users to learn and characterize their heart rates by using the hand-held device in their hands or on their chest. The data from the credit card sized wireless device is designed to help physicians and health care providers monitor and assess their patients’ heart health for a variety of medical reasons.