VARY YOUR TRAINING

Arnold didn't need his business degree to know that diminishing returns applies to workouts, too. Do the same workout for too long without making significant changes and its value falls over time. That's when a bodybuilder finds himself in a rut.

"Within a basic framework, I was constantly changing my exercises. I liked to shock the muscles by not letting them get complacent in a constant routine."

Arnold did his homework when it came to planning his training sessions. If he found that an exercise was no longer producing gains, he'd switch it for another. Never afraid to experiment with new exercises or alternative training methods, Arnold was on a perpetual search for new ways to become bigger and better as old ways became stale.