• 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

Shift Your Anabolic Mass Machine Into Overdrive With Progressive Speed

Ripped back on pulldowns - Shift Your Anabolic Mass Machine Into Overdrive With Progressive Speed

Q: I love the 4X mass method and am already seeing new size from it after only two weeks. I notice you’ve been recommending different methods on each set sometimes. Does that work better for mass? Should I be doing that?

A: One method we often recommend is the progressive speed tactic. We know one thing about it for certain: The feel is unreal—deep ache with a muscle-expanding pump after only three sets… [Read more…]

Filed Under: X Files Tagged With: 4x mass method, anabolic, eccentric, failure, growth fibers, mass, microtrauma, muscle fibers, myofibrillar expansion, negative-accentuated, progressive speed 3x, progressive-speed, pump, sarcoplasm, sarcoplasmic expansion, sarcoplasmic fluid, Size Surge, size surge workout, speed sets, testosterone, x-celeration, x-centric

Do One Set Slow For New Muscle Growth

Lateral raises

Q: I’m having a lot of trouble with delts. I don’t feel any of the exercises, and my delts never get sore. Right now I’m using a [Positions-of-Flexion] routine. Should I add exercises for some new muscle growth in my shoulders?

A: One of the big problems with delts is that they don’t get enough eccentric, or negative stress. And science says that lowering is the most important for muscle growth (the negative is what causes muscle soreness)…

Think about it. On lateral raises, the leverage shift is extreme, with high resistance through the top third of the stroke and almost zero through the bottom third. [Read more…]

Filed Under: X Files Tagged With: 3d muscle building, belly fat burn, delt training, delts, eccentric, fat loss, hormones, Mass F/X, muscle growth, negative sets, negative-accentuated, new muscle growth, POF, positions of flexion, shoulder training, shoulders, Size Surge, slow negatives, tension time, x-centric, x-centric mass workout

Last-Set Shuffle to Pack On More Muscle

Steve helping Jonathan with forced reps on hammer curls

Q: I like the idea of doing something different on the last set of a 4X sequence. You mentioned a drop set, and that works great. What about a heavier pure-negative set? Like on curls my partner would lift it for me, and I would lower [a heavy weight] slowly for six negative reps.

A: That depends on what you’re trying to accomplish. Pure negatives—your partner lifts the weight, and you lower in six seconds—are designed to attack the force-generating myofibrils in the muscle fibers, which means they are primarily for strength building with only minor size effects, so not really building a lot more muscle… [Read more…]

Filed Under: X Files Tagged With: 4X, actin, build more muscle, burn fat, drop sets, fat burning, more muscle, muscle damage, muscle fibers, muscle fullness, muscle soreness, muscle trauma, muscle-building, myofibrillar expansion, myofibrils, myosin, negative-accentuated, pack on more muscle, Power, pure-negative sets, rest/pause, sarcoplasm, sarcoplasmic expansion, size, size building, strength, strength building, tension time, testosterone, x-centric

Too Much Muscle Too Fast

Thick chest, arms, and shoulders - Too Much Muscle Too Fast

Q: I’m a competitive powerlifter, so I haven’t tried your 4X method. It requires moderate weights, and that’s not me. I need to train heavy. But I have been using your X-centric sets, usually only one or two at the end of each heavy compound exercise, like bench presses and squats. My problem is that I’ve been using X-centric sets for a month, but I’m five pounds heavier. I’m worried because I don’t want to jump a weight class at my next lifting meet. I’m pretty sure it’s all muscle because I’m seeing more striations in my chest, legs, and even shoulders, and many of my bodyparts look rounder. Should I stop using X-centrics? Is this happening because of the extra fiber trauma I’m getting from those sets?

A: The extra fiber trauma from emphasizing the negative stroke on your negative-accentuated (NA) sets is no doubt part of the reason you’ve added new muscle quickly—that causes fiber remodeling, or growth; X-centric sets also cause more fiber inflammation, which can make you look bigger and rounder. But there’s more to it than that (exciting stuff for those of us who want to pack on maximum muscle size)… [Read more…]

Filed Under: X Files Tagged With: 4x method, body fat, competitive, eccentric, fast muscle building, fast progress, fat loss, fiber trauma, lifting meet, look bigger, low testosterone, muscle, muscle gains, muscle size, muscle trauma, negative-accentuated, new muscle, power lifter, striations, tension time, testosterone, time under tension, train heavy, Truth About Testosterone, tut, x-centric, x-centric sets

Shock-centric Mass Blast

Big arm measurement - Shock-centric Mass Blast

Q: I’ve been using your 4X method and throwing in some NA (negative-accentuated) sets every so often, mainly because I like some soreness. It makes me feel like I’ve done good work in the gym and am growing. Lately, I can’t seem to get much soreness from my workouts. Should I add sets or more NA or what?

A: There is no scientific research that shows that muscle soreness equals muscle growth—but we know what you mean. It makes you feel like you’ve hit the muscle hard enough to trigger growth, and it just makes sense that the microtrauma should translate into hypertrophy. We know for a fact that emphasizing the negative stroke of every rep can cause more soreness and that it can cause inflammation—which is temporary size. But that should lead to permanent mass… [Read more…]

Filed Under: X Files Tagged With: 3x, 4X, 4x mass workout, 4x method, cardio, hypertrophy, inflammation, mass blast, microtrauma, muscle growth, muscle size, na training, negative-accentuated, shock-centric, soreness, testosterone, x-centric, x-centric mass workout

Once-a-Week Mass Workouts: The X-centric Shock Method

Under grip pulldowns - Once-a-Week Mass Workouts: The X-centric Shock Method

Q: You’ve said that training each bodypart only once a week never worked for you. But I saw mention in a previous article that you did make gains doing that with X-centric training. I like training each bodypart only once a week because that’s the way the pros do it. Should I use X-centric training to make it work better for me?

A: First, following the pros workouts is a bad idea for 99 percent of us. Steroids and other anabolic drugs make most of what they do NOT applicable to drug-free trainees. It’s like trying to make your Toyota Camry perform the same way as a Formula-One racing car. It can’t be done without some MAJOR “enhancements.”… [Read more…]

Filed Under: X Files Tagged With: anabolic drugs, drug-free, eccentric, eccentric muscle contractions, emc, fat-to-muscle workout, fiber trauma, hypertrophy, jerry brainum, mass workouts, muscle fiber density, muscle fibers, muscle trauma, na, negative-accentuated, once-a-week, POF, positions of flexion, protein synthesis, size, steroids, strength, tension time, ultimate fat-to-muscle workout, x-centric, x-centric mass workout, x-centric shock, x-centric shock method, x-centric training

The Forgotten Muscle-Size Trick

Frank Zane - The Forgotten Muscle-Size Trick

Q: You guys don’t seem to like training each muscle only once a week like a lot of pro bodybuilders. How come?

A: More muscle-training frequency is a BIG size stimulator, especially for drug-free trainees—if you do it correctly. Many pros can get away with training each bodypart with excessive volume only once a week because of genetic superiority and, of course, excessive drug use. In fact, if you look back at the best bodybuilders of yesteryear, when steroid use was minimal, training each bodypart THREE times a week was the norm prior to a contest. It’s a bit of a forgotten muscle-size trick… [Read more…]

Filed Under: X Files Tagged With: 4X, 4x mass workout, arnold, arnold schwarzenegger, direct/indirect, drug-free, drugs, eccentric, frank zane, frequency, genetics, muscle trauma, muscle-size trick, natural bodybuilders, negative-accentuated, nervous system, neuromuscular efficiency, one-hit-per-week, physique, pro bodybuilders, sergio oliva, size stimulator, steroids, strength, Ultimate Mass Workout, volume, x-centric, x-centric mass workout

Finisher Sets: Which way is better?

Steve Holman dumbbell curls - Finisher Sets: Which Way is Better?

Q: I have most of your e-books, and every one of them is great. I’ve learned so much from them, and I’m gaining faster than ever. My question is that in The Ultimate Fat-to-Muscle Workout you use power sets, negative-accentuated sets, and then end with high-rep sets to finish off a muscle. But in the X-centric Mass Workout, you have a similar program, but you end each bodypart with 4X instead of high reps. When it comes to the finisher sets, which way is better?

A: Neither is better—just different. Arnold used to use high-rep burnout finisher sets. Those were a good complement to his many heavy power sets. He’d either use them on the last exercise for a muscle or do a high-rep set as the last finisher for almost every exercise. Either way, you end up with a skin-stretching pump… [Read more…]

Filed Under: X Files Tagged With: 4X, arnold schwarzenegger, change to gain, density, fat-to-muscle, fat-to-muscle workout, fatigue, finisher sets, gains, intensity, muscle fatigue, pump, x-centric, x-centric mass workout

Quick Intensity-Plus-Density Mass Tip

Jonathan Lawson Smith Machine shoulder presses - Quick Intensity-Plus-Density Mass Tip

Q: I need a way to intensify a negative-accentuated set. I recently bought your X-centric Mass Workout e-book, and it, you say that a partner can help at the end of a set by assisting on the positive so I can continue with negatives. But I don’t have a partner… Any other mass tip suggestions?

A: Use the rest/pause technique. Do your normal negative-accentuated set (NA), using one second on the positive and six seconds on the negative. When you reach exhaustion and can’t get another, rest for six seconds or six deep breaths, then continue with as many as you can do… [Read more…]

Filed Under: X Files Tagged With: density, eccentric, intensity, negative-accentuated, rest/pause, tension time, x-centric, x-centric mass workout

More Mass Gains: Stretch-Overload Finisher

Jonathan Lawson incline curls - More Mass Gains: Stretch-Overload Finisher

Q: In the X-centric Mass Workout you end each bodypart routine with the contracted-position exercises for 4×10 density with minimal rest. But you have quoted studies that show how stretch-position exercises can build muscle very quickly. Can I do the stretch exercise 4×10 last and with the contracted move before it for a standard set or two instead?

A: That’s a great idea. You could use that stretch-overload finisher for a few weeks, and then switch back to a contracted-exercise chaser with 4×10 density. We’ll give you an example in a moment, but first… [Read more…]

Filed Under: X Files Tagged With: 4X, 4x10, animal study, contracted-exercise chaser, density, mass gains, more mass gains, stretch-density chaser, stretch-overload finisher, testosterone, x-centric, x-centric mass workout

  • « Previous Page
  • 1
  • …
  • 5
  • 6
  • 7
  • 8
  • 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