• 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

Scientific Training: Look Like a Bodybuilder

Jay Cutler doing spider curls

Q: After being involved in weight training for many years, and after working with many people as their instructor at home and at gyms, I think the main reason, and by far the most important one, that lifters get big and strong is because of their own personal genetics. How they train doesn’t make much difference. High reps, low reps, whatever. If they put even a little amount of effort in, they get big. Of course, drugs help immensely, but the actual type of training system they use is of little consequence, as long as it’s reasonably sound. I built 22-inch arms without drugs, and I performed a standing press with 400 pounds. I honestly do not believe it was because I trained scientifically. I did train hard, but it was because of my genetics that I gained so well and got so strong.

A: You are correct, but most trainees who are genetically gifted probably aren’t reading this. That’s too bad because by experimenting with science-based training, most of them could be so much better; however, because they gain easily, they think they’re doing things right and they keep plugging away with mediocre methods and never reach their full potential. [Read more…]

Filed Under: X Files Tagged With: 7-minute fix, actin-myosin strands, belly fat burn, fat burning, genetic potential, genetics, get lean, high reps, Jay Cutler, look like a bodybuilder, low reps, mr. olympia, myofibrils, occlusion, physique, POF, positions of flexion, sarcoplasm, sarcoplasmic expansion, scientific training, training for teenagers

Solving the Big-Muscle Puzzle

Jonathan Lawson doing dumbell shrugs

Q: Thank you for clearing up the muscle-growth mystery for me. I always believed in going heavier and heavier to get bigger. Now I know that’s only a small part of the puzzle. Working in the 4X method, X Reps, drop sets, and even some of your high-rep TORQ sets has already gotten me bigger in just a few weeks. My question is, Do you think some people get a better size response from power training and others get more size from density [endurance] work?

A: Absolutely. As we mentioned in a previous newsletter, the BIGGEST powerlifters don’t train for sarcoplasmic (endurance fluid) expansion yet have good muscle size. That’s because they were big dudes in the first place, which may signify more myofibril-building capacity. That would explain their extraordinary strength. The myofibrils are the actin-myosin strands inside the muscle fiber that generate force, but for most trainees that’s not the key to ULTIMATE SIZE… [Read more…]

Filed Under: X Files Tagged With: 10x10, 4x method, actin, bad gas, biotrust probiotic, drop sets, ectomorphs, fat burning, force generation, free probiotics, free supplements, glycogen, hardgainers, heavy sets, mass building, mitochondria, muscle building, muscle fullness, muscle growth, myofibrillar growth, myosin, powerlifters, pro-x10, sarcoplasmic expansion, tension overload, tension time, TORQ, X Reps, x-centric, x-hybrid techniques

The Forgotten Size Concept for Ultimate Mass

Mentzer side triceps - Arnold vs. Mentzer—No-Cardio Fat-to-Muscle Training

Q: I’ve read a lot of Mike Mentzer’s high-intensity info, and he said that the pump didn’t matter as far as muscle growth is concerned. He said a lot of the biggest powerlifters never get a pump yet carry a lot of mass. So shouldn’t heavy sets be the core of a mass-building routine?

A: Mentzer was partially right—but leaning more toward being mostly wrong. You don’t need a pump IF you’re only after primarily myofibrillar growth (strength). The myofibrils are the strands of actin and myosin inside the muscle fiber. Those grab onto each other to generate force. Training heavy increases their size and your strength—but science is finding that they are more about producing strength with less-than-stellar effects on muscle size… [Read more…]

Filed Under: X Files Tagged With: actin, biotrust protein, force generation, forgotten size concept, free protein, free supplements, heavy duty, hypertrophy, Joe Luther, mass building, mass-building routine, mike mentzer, mr. olympia, mr. universe, muscle building, muscle pump, muscle size, myofibrillar growth, myosin, powerlifters, sarcoplasm, sarcoplasmic expansion, strength, ultimate mass

“Wow! You’re looking seriously bigger, bro.”

Q: I just want to thank you for another killer variation of 4X, “downward-progression.” I’ve only been using it for a couple of weeks on the big exercises, but a guy at the gym came up to me today and said, “You’re looking seriously bigger, bro.” It’s working great and is perfect with regular 4X and TORQ (tension-overload repetition quantity). I’m using DP 4X on the heavy power exercises in The Ultimate Power-Density Mass Workout 2.0, with 4X and TORQ on the others. I’m very impressed, and apparently growing more impressive. Lol. Thank you.

A: Interesting you say that because both of us received similar compliments in the gym when we started rotating in downward-progression 4X. One guy told Jonathan his arms were looking huge, and Steve got, “If you’re trying to get bigger, it’s working.” They both left off the “bro.” [Read more…]

Filed Under: X Files Tagged With: 4X, actin, alain gonzales, athletic-aesthetic physique, bigger, brad pitt, density training, downward-progression, downward-progression 4x, dp 4x, home-gym training, myosin, perfect physique, power-density, sarcoplasm, sarcoplasmic expansion, TORQ, Ultimate Power-Density Mass Workout

The Lost Get-Bigger Trigger: The Time-Muscle Mass Continuum

Jonathan Lawson, concentration curl with support

Q: I’m making great strides in muscle gains with the 4X mass method from your newsletters. I do 10 to 12 reps per set, but I’ve seen that you sometimes recommend up to 30 reps. What’s up with that, and does that actually work for you guys?

A: We often use higher reps within the 4X-sequence framework, and it’s done amazing things for us and many of our trainees. [Read more…]

Filed Under: X Files Tagged With: 4x mass method, anabolic fasting, brad pilon, eat stop eat, get ripped, get-bigger trigger, hypertrophic, hypertrophy, intermittent fasting, muscle gains, sarcoplasmic expansion, tension overload, tension time, tension-overload repetition quantity, TORQ

Density Overload: The Trick for More Muscle Growth

Contracted leg extensions

Q: In the Size Surge 2.0 e-book, Phase 1 is all heavy sets. I don’t have any joint problems, but I love moderate-weight 4X training. I’ve gained over 5 pounds of muscle in 6 weeks with it. I don’t want to give it up completely now, but I do want to go on the 10-week Size Surge program. Can I use the same combination approach in Phase 1 that you outline in the new Phase 2 chapters; that is, heavy work on the big exercises and 4X on the more isolated ones?

A: We understand your concern about all-heavy training all the time. Lots of trainees (including us) have suddenly packed on more mass with a dose of moderate-weight, growth-threshold 4X—or even 10×10. That’s because training all-heavy for too long NEGLECTS sarcoplasmic expansion… [Read more…]

Filed Under: X Files Tagged With: 4x training, density training, full-range positions of flexion, muscle growth, phase 1, phase 2, sarcoplasm, sarcoplasmic expansion, testosterone, testosterone prescription, testosterone therapy, trt

Safer Power-Density for Muscle Immensity

Big, vascular, lean arm curling a dumbbell

Q: I just got your Super-Size Crash Course. Great programs in it! I’m older (48) and have been training for almost 20 years. Thinking about using Phase 2 with Downward-Progression 4X, but I’ll alternate with TORQ for “lighter” training days. Do you think that’s a good plan?

A: We think it’s a great plan, and one we’ve used for excellent change—and good pain—to gain. For the uninitiated, here are the two methods to alternate:

Downward-Progression 4X

Pick a weight with which you can get 15 reps, but only do 12. Rest 45 seconds as you add weight, then do 10. Rest 45 seconds as you add weight, then do 8. Rest 45 seconds as you add weight, then try to get 6.

So your reps look like this: 4 x 12, 10, 8, 6, adding weight on each set.

Vascular arm doing dumbbell curls - Safer Power-Density for Muscle Immensity

You could call that semi-heavy training, and it’s perfect for older trainees–or anyone who doesn’t want to hammer their joints with ultra-heavy poundages. The short rests between sets prevent that…

At your next workout, you’ll do lighter DENSITY training with TORQ—tension-overload repetition quantity.

TORQ

Take your 30-rep max weight and go to failure. Yes, 30 REPS. Rest 45 seconds, then go to failure again, shooting for 20. Rest 45 seconds, then go to failure one last time for 10 to 15 reps. You get high-end hypertrophic tension times…

Alternating those two methods from workout to workout is great for SAFER power work alternated with lighter, sarcoplasmic-expansion hits.

It’s really a less-joint-stress version of Power-Density for new muscle immensity.

Note: DP 4X and TORQ, as well as Progressive-Speed 4X and pyramid training, are explained—and included in the programs—in The Super-Size Crash Course e-book.

Till next time, train hard—and smart—for BIG results.

—Steve Holman and Jonathan Lawson
www.X-Rep.com


7-Minute “Miracle Fix” for Stubborn Belly Fat

Researchers from The Proceedings of The Nutrition Society are suggesting this “blood flow hack” is the fastest way to melt off frozen belly fat with minimal effort.

So if you want to switch on your fat burning switch in just 7 minutes—without going to the gym or running on the treadmill, then check this out:

7 Minutes “Miracle Fix” for Stubborn Belly Fat

Filed Under: X Files Tagged With: change to gain, density training, downward-progression 4x, dp 4x, hypertrophic, iso abs, isometric abs, joint stress, muscle immensity, older trainees, over-40, Power, power-density, progressive-speed 4x, pyramids, safer power-density, sarcoplasmic expansion, super-size crash course, tension time, tension-overload repetition quantity, TORQ

The #1 Key to Ultimate Muscle Size

Most muscular

Q: So from what I can surmise, it sounds like I need both heavy, lower-rep sets and higher-rep, longer tension-time sets to build the ultimat muscle size. Is that right?

A: That’s a simple way to put it, but yes, most trainees need both types of training to attain extreme development as quickly as possible. Let’s review the late, great Olympic coach and strength/muscle-building expert Charles Poliquin’s input…

[Read more…]

Filed Under: X Files Tagged With: 4X, belly fat burn, Charles Poliquin, Doug Brignole, fat burning, heavy training, high-end hypertrophy, high-reps, lose 17 pounds, Mr. America, muscle size, muscle-building, power-density, sarcoplasmic expansion, sarcoplasmic growth, strength coach, Super TORQ, tension time, tension-overload repetition quantity, ultimate muscle size

Build Muscle While You Burn Fat: Is It Possible?

Q: I started using your 4X Mass Workout a few months ago, and I put in negative-accentuated [or X-centric] sets for each muscle at least once a week to help burn fat. I also adjusted my diet slightly, but nothing major. I swear I’m bigger as well as leaner now. Is it an illusion that I’ve put on a lot of muscle because I’m just more cut? I weigh about the same, but my abs are much sharper. I always hear that you can’t build muscle while you burn fat, but from my results, I’d have to disagree.

A: There have been studies with rats that had them gain muscle with weight-bearing exercise while on near-starvation diets. We’re not rats, of course, but we believe it’s possible for humans. We’ve seen it on many occasions…

[Read more…]

Filed Under: X Files Tagged With: biotrust, get ripped, metabolic uptick, myofibrillar expansion, pro-x10, probiotics, protein farts, sarcoplasmic expansion

Bigger, Rounder Attention-Grabbing Shoulders

Jonathan doing dumbbell presses with Steve spotting

Q: Broad shoulders get girls’ attention, but mine are narrow. And on top of that, my delts are flat. Should I do more presses to round them out? I notice in 3D Muscle Building that you have presses as more of a front-delt midrange exercise. Aren’t they good for side delts, too? BTW, I love 4X mass method and am using it almost exclusively.

A: Overhead presses primarily train the front-delt heads. Plus, they can impinge the shoulder capsule if performed incorrectly. That’s why we generally suggest doing them at the end of our delt routine. A good Positions-of-Flexion full-range shoulder hit, 4X style on every move, would be…

[Read more…]

Filed Under: X Files Tagged With: 3d muscle building, 4x mass method, attention, boost testosterone, continuous tension, delts, dumbbell presses, estrogen, frank rich, high upright row, lateral raises, massthetic, mike mentzer, muscle mass, positions of flexion, sarcoplasmic expansion, shoulder joints, shoulder presses, shoulder routine, shoulder workout, shoulders, steroids, testosterone, upright rows, vince gironda

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