Q: If 4×10 [as in the 4X technique] is so effective at achieving both power and density for maximum muscle mass, why would one bother with 10×10? You wrote that a trainee should only stay on 10×10 for three to four weeks since staying on it longer may compromise the power component. If you believe 4×10 is clearly superior, why waste time on 10×10?

A: 10×10 is a PURE DENSITY shock tactic that can produce big gains in muscle size quickly—and you only do it on one key exercise for each bodypart. That means it takes only 10 minutes to thoroughly and completely blast a muscle into the growth zone—but we only recommend this pure density approach for a four-week shock phase… [Read more…]