During the first half of the twentieth century, an Italian born man named Angelo Siciliano, went through a profound physical transformation that turned him into one of the most iconic figures in fitness history. In addition to shaping his body, he developed a workout program, known as "Dynamic Tension," and encouraged others (like champion boxer, Joe Lewis) to get stronger through isotonic, isokinetic and isometric (see:
We all read that comic advertisement back in the day! Grown men kicking sand on other grown men. And none of us questioned it haha