• 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

Should I Do More?

Jonathan Lawson V-bar chins - 10X for Muscle Size Effects

Q: I’ve noticed in a lot of your e-book routines that you often recommend just two work sets for an exercise Why? Should I do more? I’ve read that most bodybuilders do four or five sets per exercise.

A: As Arthur Jones, the creator of Nautilus machines said: “You can train hard or you can train long, but you can’t do both.” Short and hard or long and not so hard both work. Despite what some die-hard high-intensity trainers say, gradually increasing volume is a form of overload that can result in more muscle—if you don’t overdo intensity. It’s a balancing act. Us? Regardless of whether it’s one of our low-set workouts or high tension time workouts, we’re about efficiency of effort in the gym…

[Read more…]

Filed Under: X Files Tagged With: anabolic environment, arthur jones, do more, drop sets, efficiency-of-effort, estrogen, fast-twitch fibers, fat burner, growth hormone release, growth stimulation, intensity, mass tactic, massthetic, Nautilus, rest/pause, steroids, tension time, testosterone, volume training, X Reps, x-hybrid tactics, x-rep partials

Simple Size Principle for Major Muscle Gains

Steve spotting Jonathan for forced reps on dumbbell shoulder presses

Q: It’s hard for me to believe that a few partial reps at the end of a set [a.k.a. X Reps] can do anything measurable for muscle gains. Isn’t doing an additional set just as good or better for muscle growth?

A: At first glance, you’d think so; however, once you understand muscle physiology, you see the enormous muscle-building effects that can occur if you extend a set correctly. It all starts with the size principle of muscle fiber recruitment…

[Read more…]

Filed Under: X Files Tagged With: anabolic, efficiency-of-effort, fast-twitch fibers, high glycolytic, high-threshold motor units, low-threshold motor units, medium-threshold, muscle gains, muscle growth, muscle physiology, nervous system, over-40, oxygenic, size principle, size principle of muscle fiber recruitment, slow-twitch, testosterone, Truth About Testosterone, X Reps, x-rep partials, x-traordinary x-rep workout

35-Minute Mass Workouts: Dual Power-Density

Jonathan doing decline presses on a Smith machine

Q: I’m using The Basic Power-Density Workout from your Power-Density Mass e-book. So for most bodyparts, I do only one Ultimate Exercise as listed. But for shoulders, you divide it over two exercises—presses for Power and dumbbell upright rows for Density. Can I use that two-exercise approach for all muscles? I think using two exercises instead of only one will hit more fibers.

A: Absolutely. Using one Ultimate Exercise for both the Power and Density sequences streamlines the workout, as you need only one piece of equipment. But if it’s possible at your gym, go to a different exercise for Density—just make sure it’s a big multi-joint move.

Will that increase development? Possibly, if you choose exercises that emphasize different segments of the target muscle…

[Read more…]

Filed Under: X Files Tagged With: 2a fibers, 35-minute mass workouts, anabolic environment, anabolic hormone reset, anabolic hormones, basic power-density workout, dr. michael mosley, dual power-density, emg studies, fast-twitch, fast-twitch fibers, growth hormone, intermittent fasting, journal of applied physiology, mass workouts, metabolic adaptions, power pyramids, power-density mass workout, shaun hadsall, testosterone, ultimate exercises

The Best Workout Program for Building Muscle

Steve showing Jonathan his latest drawing (or gym notes)

Q: I just want the best workout program for building muscle. Please simplify all the rhetoric and just tell me which one is the absolute best.

A: That’s easy. There is no best routine. It’s the nature of how the human body adapts. We always say it takes change to trigger bigger gains, and some experts suggest that the body is fully adapted after only four workouts.

That’s the reason our own programs are constantly evolving—a new exercise, a new X-hybrid tactic, a drop set, etc. And after 10 weeks or so, we often move to a new program from one of our e-books (Jonathan recently went all the way back to our first X-Rep transformation program, with a few new alterations).

[Read more…]

Filed Under: X Files Tagged With: 3d muscle building, adaption, best workout program, build muscle, change to gain, drop sets, end-of-set x-rep partials, fast-twitch fibers, hormones, muscle building, occlusion, p/rr/s, Power, power/rep range/shock, rep range, shock, size and strength, super sets, testosterone, time under tension, Truth About Testosterone, X Reps, x-hybrid tactics, x-rep partials

Stick to Only Big, Basic Exercises?

Q: I’ve been lifting for about 1 1/2 years, trying to build a mass base, but it’s just not happening very fast. I like the idea of 3D Positions of Flexion [training each muscle in its midrange, stretch, and contracted positions], but almost everyone I talk to says to stick to only the big, basic exercises and forget about isolation moves. Should I just continue using the big basics and hope I build size and strength, or is now the time for me to try 3D POF?

A: Using only the big, basic exercises, what we call midrange-position moves like squats for quads, is fine for, say, a six-week phase every so often (like winter); however, we firmly believe that those who make big gains using only big exercises have an abundance of pure fast-twitch fibers and exceptional nerve-to-muscle connections (neuromuscular efficiency). They are genetically gifted, unlike the majority…

[Read more…]

Filed Under: X Files Tagged With: 3d muscle building, 3d pof, 3d positions of flexion, anabolic, anabolic hormones, basic exercises, big basic exercises, capillary beds, contracted, endurance fibers, fast-twitch fibers, fat burning, fiber splitting, fiber types, genetics, hyperplasia, mass builder, mass building, mass gains, max-force generation, midrange, mitochondria, muscle elongation, muscle gains, nerve-to-muscle connections, neuromuscular efficiency, occlusoin, POF, positions of flexion, size, strength, stretch, testosterone, Truth About Testosterone, x update, x-rep update

Aftershock Training to Jolt Muscle Gaining

Q: I was reading some past articles where you guys had mentioned something called Aftershock training. What is that, and should I try it?

A: Aftershock training is supersetting two exercises, but with a distinct reason—more fast-twitch fiber recruitment for new muscle growth quickly (it can rejuvenate standard straight-set 3D POF training, as you’ll see).

[Read more…]

Filed Under: X Files Tagged With: 3d muscle building, 3d pof, 3d positions of flexion, aftershock superset, aftershock training, back workout, belly fat burn, compound aftershock, fast-twitch fibers, fat-burning furnace, fiber recruitment, hormone trick, hormones, hyperactivation, isolation aftershock, lat workout, leg workout, mass tactic, mass training, muscle fibers, muscle gaining, myotatic reflex, nervous system, physique, POF, positions of flexion

Fast Moves to Get You Huge?

Steve spotting Jonathan on DB shoulder presses - Fast Moves to Get You Huge?

Q: I was reading one of your newsletters I saved, and you were talking about how bad it was to see people using fast moves with ballistic reps in the gym. But I’m pretty sure I’ve seen you guys recommend fast reps recently. What’s the deal—are they good or bad?

A: There is research showing that a faster tempo can help engage more fast-twitch growth fibers; however, our speed, or X-celeration, method is not throwing the weights… [Read more…]

Filed Under: X Files Tagged With: anabolic hormone reset, anabolic hormones, ballistic reps, build muscle, downward-progression, dp 4x, fast moves, fast reps, fast-twitch fibers, get huge, growth fibers, jordon williamson, melt fat, plyometrics, power tempo, progressive-speed 4x, speed reps, speed set, super-size crash course, x-celeration

Shocking New Muscle Mass: TORQ – DP 4X – Modified Pre-Ex

Lateral raises - Shocking New Muscle Mass: TORQ - DP 4X - Modified Pre-Ex

Q: I do four-week phases of different workouts from your various e-books. That strategy works great for me. I’ve gained 10 pounds of muscle in three months, and that’s after training consistently for 10 years. I’m getting ready to start the Modified Pre-Ex 3X Mass Workout. After all the positive talk about TORQ, I was thinking about using that on the first exercise, the isolation move. Is that a good idea for building new muscle mass?

A: Absolutely. We’ve talked about that before, and we used to use TORQ-ed up modified Pre-Ex as a shock tactic in our old Freaky Friday workouts… [Read more…]

Filed Under: X Files Tagged With: anabolic receptors, animal study, downward-progression, dp 4x, fast-twitch fibers, freaky friday, growth fibers, hypertrophic fatigue, hypertrophy, modified pre-ex, multi-joint exercises, new muscle mass, pre-ex 3x, pre-ex 3x mass workout, stretch overload, tension-overload repetition quantity, TORQ

Max Force for Major Muscle

Steve spotting Jonathan on Smith machine squats - Max Force for Major Muscle

Q: In your early e-books, like The Ultimate Mass Workout, you say that generating maximum force is the key to muscle mass. To me, it doesn’t seem like you ever exert max force with 4X training because you are using moderate weights. Do you still think creating maximum force is the way to build the most mass?

A: Yes, we believe force is one of the big keys to packing on muscle mass—but there’s more than one way to get enough… [Read more…]

Filed Under: X Files Tagged With: 4X, 4x mass workout, 4x training, all-or-none law of fiber activation, all-or-none principle, bodybuilder x, boost testosterone, cardio, danny padilla, density, fast-twitch fibers, fiber activation, gains, growth fibers, max force, maximum force, muscle gains, muscle mass, POF, positions of flexion, Power, power and density, semi-stretch, testosterone, Ultimate Mass Workout, x-rep partials

No B.S.: 4X for Mass-Building Success—Even Mentzer Would Confess

Mike Mentzer flexing his triceps - No B.S.: 4X for Mass-Building Success—Even Mentzer Would Confess

Q: I’m a big believer in Mike Mentzer’s Heavy Duty system of one all-out set to failure for each exercise. That’s why I think your 4X method is total B.S. Mentzer cited studies and found from personal experience that intensity is the key to muscle growth. With 4X you’re using lighter weights and not going to failure, which wastes a lot of sets. It can’t work, and I think you should feel ashamed for promoting it as miracle mass-building system.

A: We didn’t say it’s a “miracle” system (although some trainees have said it worked mass miracles for them). We simply said that we GUARANTEE that our 4X programs will build NEW MASS for just about anyone. We’re absolutely positive of that because it’s got ALL the critical components to trigger bigger gains quickly—and that includes intensity (we think Mentzer would agree as you’ll see, and that’s no B.S.)… [Read more…]

Filed Under: X Files Tagged With: 4X, 4x mass method, 4x mass workout, 4x method, all-or-none law of fiber activation, fast-twitch fibers, freak physique, full-range, gains, growth fiber activation, growth threshold, heavy duty, intensity, mass builder, mass building, Mentzer brothers, mike mentzer, muscle growth, new mass, no b.s., one all-out set to failure, physique, POF, positions of flexion, supercompensation

  • « Previous Page
  • 1
  • 2
  • 3
  • 4
  • 5
  • Next Page »

:: 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