• X Shop
  • Checkout

X-REP.COM

Dedicated to Your Physical Transformation

  • Home
  • About Us
  • X Shop
  • X Files
    • Latest Articles
    • FAQ
    • Ezine Archive
  • Testimonials
  • Contact Us
  • Gallery
  • Subscribe

Quick Muscle-Mass Tip: Density-Expansion

Jonathan Lawson cable curls - Quick Muscle-Mass Tip: Density Expansion

Q: On the X-centric Mass Workout, I’m getting a lot bigger and stronger using the 4×10 finisher for all body parts. It’s great! My question is, as I get stronger should I stop at 10 on the last set, even if it’s easy? Or should I keep repping until muscle failure [on the fourth set]? I know to go up in weight at the next workout, but I don’t want to waste the one where the weight is easier.

A: For the uninitiated, 4×10 (from the 4X Mass Workout e-book) is taking a weight that you can get about 15 reps with, but you only do 10. Rest 30 seconds, then do 10 more and so on until you complete four sets. If the weight is right, you shouldn’t get 10 on your last set or two. If you do get 10 on your last set, add weight at your next workout… [Read more…]

Filed Under: X Files Tagged With: 4x mass workout, 4x10, cardio, density, density-expansion, eccentric, muscle failure, muscle-mass tip, strength, testosterone, x-centric mass workout

Best Rep Speed for Muscle Growth

Jonathan Lawson dumbbell pullovers - Best Rep Speed for Muscle Growth

Q: What is the best rep speed for muscle growth? I want to look like a bodybuilder/physique athlete, so I’m not that concerned with strength. I just want more muscle mass.

A: In The X-traordinary X-Rep Workout e-book we cite a study that attempted to determine the optimal rep speed for building muscle. It compared doing sets with a two-to-three-second positive and a two-to-three-second negative—about three up, three down—with sets using a power cadence, which is one second up and three seconds down. The power cadence produced the most mass in this study. [Int J Sports Med. 30(3):200-204; 2009.] [Read more…]

Filed Under: X Files Tagged With: anabolic, best rep speed for muscle growth, bodybuilder, building muscle, eccentric, fast-twitch, fat-to-muscle, fat-to-muscle workout, international journal of sports medicine, muscle biopsies, muscle fibers, muscle growth, muscle mass, myotatic reflex, optimal rep speed, physique athlete, protein remodeling, rep speed, semi-stretch, semistretch, ultimate fat-to-muscle, x-centric, x-centric mass workout, x-traordinary x-rep workout

Swole Patrol: Look Bigger After One Workout

Jonathan Lawson arm measurement - Swole Patrol: Look Bigger After One Workout

Q: I know this is a weird question, but can a muscle get bigger after only one workout? I’ve been using the X-centric Mass Workout for only a week, and I swear I look bigger in almost all of my muscles. Is it my imagination? I am motivated so maybe my mind is playing tricks on me.

A: Well, when you use negative-accentuated techniques, it produces more microtears in muscle tissue, which leads to soreness. A sore muscle definitely FEELS bigger. But is the muscle really fuller and larger?… [Read more…]

Filed Under: X Files Tagged With: biotrust, eccentric, hypertrophy, inflammation, inflammatory response, look big, look bigger, microtears, muscle trauma, na sets, negative-accentuated, pro-x10, probiotics, protein farts, recovery, soreness, swole patrol, x-centric, x-centric mass workout

  • « Previous Page
  • 1
  • 2
  • 3
  • 4

:: Get the latest news and specials :: Sign Up for our Ezine!

Shopping Cart

Number of items in cart: 0

  • Your cart is empty.
  • Total: $0.00
  • Checkout

Log In

Copyright © 2026 · X-Rep.com