Mike Mentzer's Heavy Duty Temple

Michael Mentzer was an American IFBB professional bodybuilder, businessman, and author. Born in Philadelphia, Pennsylvania, Mentzer started bodybuilding when he was eleven years old. He won several amateur bodybuilding competitions before turning professional in 1979, including the 1976 Mr. America title and the heavyweight division of the 1978 IFBB Mr. Universe.

Influenced by the concepts developed by Arthur Jones, Mentzer devised and successfully implemented his own theory of bodybuilding. One of the most prolific bodybuilders of all time, his Heavy Duty Training program advocates high intensity and low volume.

Mike Mentzer's Heavy Duty training focuses on high-intensity, low-volume workouts to maximize muscle growth by pushing muscles to absolute failure with minimal sets and long recovery periods