actin Archives - X-REP.COM

Power-Pump: Combo to Grow More Muscle

Q: I recently went from training heavy on everything to [moderate-weight] 4X. I’m convinced that it’s genius. I gained four pounds in two weeks. My question is, What do you think of doing the first set heavy with low reps, then do a 3X after? That should get both size factors, right?

A: That’s a great variation. Of course, it’ll take a bit longer because you have to do some warmup sets. Then you do your heavy set, followed by a 3X sequence. We have a similar power-pump style of strategy in The Ultimate Power-Density Mass Workout…

In the Basic Workout, you do one exercise per bodypart. For example, for midback you do this: [Read more…]

Low Reps Plus Short Rests for Mass-Building Success?

Q: I’ve always gotten pretty good size and strength gains from heavy weights and using the six-to-eight-rep range. Could I be more myofibrillar dominant? And, if so, do you think I would benefit more by doing 4X mass training with lower reps, say 4×6, but still with short rests so that my sarcoplasm gets growth benefits as well?

A: Great question! For new readers, the myofibrils are the force-generating actin and myosin strands in the muscle fibers. If you have more of those than usual, you would be considered myofibrillar dominant. A good example of that is Mike Mentzer, who was squatting over 500 pounds at age 16…

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Contract + elongate to pack on muscle weight

In most of our mass-training e-books we say that the semi-elongated, or stretch, position on an exercise’s stroke is most important to pack on muscle weight. Why?

Here’s a quote we used in The Ultimate Mass Workout from strength and hypertrophy researchers Steven J. Fleck, Ph.D., and William J. Kraemer, Ph.D. (Don’t fall asleep as you read it; we will translate—lol)… [Read more…]

Muscle-Building Mistake You Can’t Afford to Make

Q: A lot of bodybuilders go all power in the off-season. They push for more strength so size will follow. I’m thinking about using the Phase 1 program in Size Surge for that purpose—mostly big exercises with heavy weights training three days a week so I get plenty of recover-and-grow time. Would that program be okay to use for the entire 10 weeks instead of moving to Phase 2?

A: You’re right, even Arnold used to do a two-to-three-month power phase in the winter—but it wasn’t heavy low reps on every exercise, as we’ll explain. That’s the problem with the way most trainees do it: They go heavy on ALL exercises all the time for too long and neglect critical sarcoplasmic size, which can be a big muscle-building mistake… [Read more…]

Last-Set Shuffle to Pack On More Muscle

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…]