: Many of Mentzer’s original writings are out of print. Digital archives, such as those found on Academia.edu
Crossing off a "New Personal Best" triggers dopamine. mike mentzer heavy duty journal pdf better
Recent research has shed light on Mentzer's claims. A 2025 comparative study published in the Arena-Journal of Physical Activities examined Heavy Duty versus classical training over 6 months. The results were striking: The Heavy Duty group recorded a versus 16.5% for the classical group, and a 3.3% increase in arm circumference versus 2.7%. : Many of Mentzer’s original writings are out of print
Minimal weight used simply to lubricate the joints without causing fatigue. mike mentzer heavy duty journal pdf better