HIGH REP OR LOW REP? AND THE LOGIC BEHIND IT ?
The Case For High Reps
By now, it’s probably ingrained in you that you need to perform high reps per set (I’m looking at you, bodybuilders). Let me clarify that I define high reps to dawdle in the 8-12 rep range but could be as low as 6 reps per set.
There shouldn’t be anything really earth-shattering here. If you train with high reps, your goal is to build a bigger muscle.
Some folks call this “structural hypertrophy” since the higher rep sets allow you to focus primarily on the muscles themselves. They also lend themselves to fewer total sets per exercise. By virtue of slowing down the movement, coupled with the sheer amount of reps you do per set, you’re going to increase time under tension, which is a necessary stimulus for hypertrophy. No doubt, gains in strength will come along for the ride, but increases in muscular growth will outpace the increases in strength.
But what happens if you spend all your time here? Quite simply, your body will adapt to your training in this rep range if you continue it for extended periods of time. Furthermore, training in that zone will ultimately limit the amount of intensity you can use as well.
Do high-rep sets (15, 20, or more reps per set) have a place in programming? Sure, but they’re probably the exception rather than the rule.
The solution here is clear: Focus on getting stronger! This brings me to my next point…
The Case For Low Reps
High reps deliver big gains, right? Well, low reps have a place, too!
The low-rep zone can be defined as anything between 1 rep with near-maximal effort and 5 reps in a set. They’re often viewed as being geared more for powerlifting or Olympic lifting, but if you really want to make high-threshold motor units work, you will need to push some serious weight!
This focuses on making your nervous system more efficient. If you switch from sets of 10 to sets of 3, you coerceyour body to unfamiliar, shocking stressors, especially since low rep ranges encourage the use of much heavier weights. Every movement requires more “tightness” and a more intense focus. Further, more motor units and muscle fibers are recruited, and your body gets better at turning off antagonists (or opposing muscle groups) as well.
The result is that you’ll get jacked, but in a slightly different way. Since the goal is more on strength, your body composition will greatly differ from someone who performs exclusively high-rep sets. Powerlifters are strong as hell and can move jaw-dropping weight, but probably lack a bit of the size and definition of a well-trained bodybuilder.
SARCOPLASMIC VS. MYOFIBRILLAR HYPERTROPHY
There is no difference between sarcoplasmic and myofibrillar hypertrophy.
The rate that each develops can vary between people though. Skills in strength training and genetic factors complicate the issue too. This has led to some questionable conclusions. Despite the popularity of the idea, no science emerges to support a distinction.
This theory attempts to explain why bodybuilders look different than other athletes. It separates bodybuilding from strength or power training. You have to train differently to optimize each goal. This remains speculative at best.
