Jens Bangsbo

Jens Bangsbo is a Danish professor of physiology and sports science at the University of Copenhagen, born on October 2, 1957, in Aarhus, Denmark[1][2]. He is a former football player and assistant coach for Atalanta and the Denmark national team, and has authored over 25 books on football and physiology[1][2]. Bangsbo is also renowned for developing the Yo-Yo fitness tests and is a leading expert in soccer training and exercise physiology[4][9].