An electrocardiogram (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as line tracings on paper. The spikes and dips in the tracings are called waves. The heart is a muscular pump made up of four chambers .
In the official rules for Major League Baseball, it is stated that the outfield fence should be at least 250 feet from home plate. A distance of 325 feet or more along the foul lines and 400 feet or more to center field has since become mandatory for any new stadiums.
In many areas, the local league has an agreement with a municipality to maintain the fields. Generally, the distance between base paths on fields for 12-year-olds and below in baseball and in all divisions of softball is 60 feet. A local Little League board of directors may opt to use a 50-foot diamond in the Tee Ball divisions.