The Beep Test involves running between two markers 20 meters apart, following audio cues which dictate the running speed required. It is often used as the preferred option to monitor progress in response to physical activity programs because of the low cost of equipment, and its ability to test large groups of participants simultaneously. The test was developed in the 1970s by the French Canadian Luc Léger and his colleagues, and is now one of the most commonly conducted aerobic fitness test around the world. The Beep Test is a maximum aerobic endurance fitness test, involving running between markers placed 20 meters apart, at increasing speeds, until exhaustion.