Ambulatory electrocardiographic (ECG) monitors are chest-worn devices for free-living cardiac monitoring. Modern monitors collect high-quality single-lead ECG data using two electrodes and are much more convenient, and less invasive than traditionally used Holter monitors. They are water-resistant and can be worn continuously for up to 14 days.
Multiple models of commercial, inexpensive ambulatory ECG monitors were introduced to the market in recent years, resulting in the rapidly growing interest of
With a sampling frequency of around 200 Hz, data collected over multiple days can reach hundreds of millions of samples per individual understandably creating computational and logistical challenges in large-scale studies. At the ARC, we use GPU-accelerated signal processing and machine learning algorithms to characterize heart rate variability, diurnal patterns, as well as sympathetic and parasympathetic nervous system function.