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The Stretch-Strength Link

JL 3D Biceps Exercises - Triple-Hit Anabolic Reload

Q: I’m loving the 3D HIT program [listed in the X-traordinary Arms e-book]. Every bodypart is growing, my strength goes up at almost every workout, and I’m only in the gym for 45 minutes. So far, it’s sweet! My question is, Shouldn’t the stretch exercise be last in the 3D sequence: midrange, contracted, then stretch? I’ve read that stretching a muscle makes it weaker right after, so it only makes sense that you should do the stretch-position exercise last instead of before the contracted-position exercise; otherwise, you’ll be weaker on the contracted move. Am I off base here?

A: Either order works well for stimulating growth, and it’s good to mix it up for more adaptation (growth). But we’ll give you our reasoning for why we think the standard order (see the pics below) is best for optimum hypertrophy (fast mass) with regard to the stretch-strength link. Take biceps as an example. The standard 3D POF program is barbell curls, incline curls, and concentration curls—in that order. [Read more…]

Filed Under: X Files Tagged With: 3d hit, 3d pof, anabolic, continuous tension, force, growth stimulation, muscle fibers, myotatic reflex, occlusion, Russian study, Science and Practice of Strength Training, stretch effect, stretch overload, stretch-strength, testosterone, testosterone replacement therapy, trt, Vladimir Zatsiorsky, William J. Kraemer, x-traordinary arms

Quick Mass Tip: Double Down to Blow Up BIG

You already know that some type of overload is necessary for growth-fiber thickening. That’s called myofibrillar size.

The strands in the muscle fiber enlarge, giving you bigger muscles. Heavier loads can produce that…

[Read more…]

Filed Under: X Files Tagged With: 20 pounds of muscle, 3d muscle building, 4X, bodybuilders, direct/indirect, double drop, force, free meals, get big, get big quick, growth fibers, healthy food, healthy food kit, heavier training, high-end hypertrophy, keto, keto meals, mass builder, Mass F/X, mass tip, meal prep, myofibrillar growth, myofibrillar size, positions of flexion, power pyramids, power/rep range/shock, quick mass, sarcoplasm, size surge program, swole patrol, tension times, TORQ

Muscle Expansion With Isolation

Jonathan Lawson under-grip chins - Muscle Expansion With Isolation

Q: Isn’t it true that you activate the most muscle fibers in the flexed position, like at the top of a leg extension or leg curl? I know that [Nautilus creator] Arthur Jones said that. So shouldn’t I really flex at the top of those isolation-type exercises? Come to think of it, why should I do compound exercises [like squats] at all? Isolating the muscle appears to be the logical way to stimulate the muscle growth best.

A: We respect the late Arthur Jones and value much of his research, theories, and opinions (Steve met him many years ago in Florida); however, newer research states the contrary—that the contracted, or flexed, position of an exercise is not where the most force/fiber activation occurs—it’s the bottom, where the target muscle is somewhat stretched. Here’s a quote from respected scientists Steven J. Fleck, Ph.D., and William J. Kraemer, Ph.D., that makes the point (we’ll put their statements in simpler terms in a moment): [Read more…]

Filed Under: X Files Tagged With: arthur jones, fiber activation, flexed position, force, hypertrophic trigger, hypertrophy, isolation, isolation exercises, muscle expansion, muscle growth, Nautilus, occlusion, peak contraction, Steven J. Fleck Ph.D, tension, tension/force, William J. Kraemer

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