Mike Mentzer’s “Heavy Duty”
workout routine is high-intensity, low volume approach to weight lifting. Gain Fast Muscles Weight Lifting only Three times a week at high intensity until failure.

Mike Mentzer’s Method

Once you’ve actually induced growth stimulation by reaching a point of momentary muscular failure, you don’t have to do it again. Why? because you’ve already achieved your goal of setting the growth mechanism into motion. It’s like when you throw the switch to turn on a light– once you’ve thrown the switch , the mechanism is in motion, you don’t have to stand there flipping the switch up and down.
-Mike Mentzer