: Because high intensity is so taxing on the central nervous system, volume must be kept extremely low. A typical Heavy Duty session might consist of only one or two "work sets" per exercise. Infrequency
Mike Mentzer 's is a High-Intensity Training (HIT) system that revolutionized bodybuilding by prioritizing brief, infrequent, and highly intense workouts over the high-volume approach common in the 1970s . Mentzer utilized this philosophy to become the first bodybuilder to earn a perfect score at the 1978 Mr. Universe . Core Philosophy mike mentzer-s heavy duty
His rule: Eat only when truly hungry. Do not force-feed. If you are not recovering, eat more. But train less. : Because high intensity is so taxing on