If you wanna build massive muscle, you gotta stick to THREE rules when you're lifting, specifically, the 50:60 method.

- First, you need to do 50 reps. Break those into 5x10 sets.

- Second, you need to be strict about your rest. 60 seconds between lifts. No more, no less. This helps balance the level of fatigue with the level of stimulus that is manageable without going to failure.

- Third, you need to focus on time under tension. When you lift, move through the range of motion in an 8-second count. 4 seconds down, 4 seconds up. Be methodical. Don't cheat the range of motion.

When you put these three tried and tested scientific principles of building muscle together, you get MASSIVE MUSCLE.

KF!