An electrocardiogram is a graphic record of the heart’s electrical activity. It was invented in 1903 by a Dutch physiologist who was known as Willem Einthoven. Notably, it was created to measure electrical potential changes that occur in the heart due to the contraction of its muscles (Asif & Drezner, 2016). When the electrocardiogram was invented, it was used as a tool for determining whether the heart was working properly or not as well as detecting cardiovascular anomalies and illnesses.
Asif, I. M., & Drezner, J. A. (2016). Cardiovascular screening in young athletes: Evidence for the electrocardiogram. Current Sports Medicine Reports, 15(2), 76-80.