Your Reps Don’t Really Matter…
Stop getting hung up on your rep ranges. Seriously. Because - get this - it doesn’t actually matter.
Well, okay, that’s a slight exaggeration. It’s not that there aren’t variables to consider when deciding how many reps to pack into a set, but the conversation has become so stiflingly overcomplicated that it is almost certainly holding people back from true progress. We’ve spent so much time arguing over the "optimal" numbers that we’ve forgotten the actual drivers of growth.
When it comes to building muscle and strength - two variables that are pretty much mutually inclusive for the natural lifter - the most important considerations are mechanical tension, consistency, and intensity. Everything else is just details.
The "Hooey" of the Magic Numbers
Perhaps you’ve heard that 1-5 reps is for strength, 8-12 is for muscle size, and 15+ is strictly for endurance. I’m here to tell you that this notion is a total bunch of hooey.
The truth? You can build significant muscle with almost any rep count. Your body doesn’t have a calculator in its muscle fibers that refuses to grow because you accidentally hit a 6th or 13th rep. What actually matters is taking the reps in question close to (if not all the way to) muscular failure, while ensuring you are trying to get stronger over time.
In short: Train hard. Get stronger. The end.
Why Is Fitness So Complicated?
I could stop the blog right there, but we need to address why this "rep range" obsession exists. The fitness industry thrives on complexity because complexity sells. It’s much easier to sell a "proprietary 9-week hypertrophy rep-shredding protocol" than it is to tell someone to pick up a heavy weight and work hard for years and years.
Complexity keeps the wheels of profit turning, but it does very little for the consumer. My goal is to demystify the process. Fitness should be accessible, and the "rules" should be simple enough to follow when you're tired, busy, or just starting out.
Weight, Reps, and the Stimulus
Let’s look at the mechanical reality. Lower reps typically require "heavier" weights, higher reps require "lighter" weights, and moderate reps fall somewhere in the middle. All of these can achieve a similar muscular stimulus, provided the sets are taken into the realm of muscular failure.
Now, let’s define muscular failure. It doesn’t just mean the set became "difficult." It doesn't mean you "felt the burn" or got a nice sweat going. Failure, in the context of your training, means that you absolutely cannot complete another rep with proper form. As long as you are training within a couple of reps of that wall (often called RPE 8 or 9), you are creating the necessary stimulus for growth.
But the process doesn't end with intensity. You must also practice progressive overload. You have to try to be "better" than you were last week - either by doing more reps with the same weight or by increasing the weight itself.
The Power of the "Rep Goal"
This is where people get tripped up. Instead of giving yourself a broad rep range (like 8-12), I recommend programming a singular rep goal. Think about it: what does programming “8-12 reps" actually achieve that a singular goal of "10 reps" doesn't? When you give yourself a range, the human brain often defaults to the easiest path - stopping at 8 when you could have pushed to 10.
Let’s use the dumbbell biceps curl as an example. Instead of a range, set a goal of 10 reps. This doesn’t mean you must hit 10 reps today; it means 10 is the target you are hunting.
Week 1: You use 20 lb dumbbells. You hit failure at rep 6.
Week 2: You’ve recovered, you’re focused, and you manage 8 reps.
Week 3: You finally nail all 10 reps with perfect form.
You’ve conquered that weight! Now, next week, you "level up" to 22.5 lbs or 25 lbs and start the hunt all over again. That is simple, effective progressive overload. No guesswork required.
The Problem with High and Low Extremes
While any range can work, there are practical reasons to stay in the "middle" for most of your work.
Training in very high rep ranges (20+) for muscle growth is possible, but it’s mentally and physically exhausting in a way that often obscures your progress. When you’re at rep 25, is your muscle actually failing, or is your cardiovascular system giving out? Is the "burn" from lactic acid making you stop before the muscle fibers are truly fatigued? High-rep sets require a lot of guesswork regarding true failure.
On the flip side, performing sets of fewer than 5 reps may not be ideal for maximum growth because it’s hard to get sufficient time under tension. To stimulate all the fibers within a muscle, that muscle needs to experience high tension for a certain duration. If a set is over in 10 seconds (like a heavy double), you haven't maximized that window. To compensate, you’d have to perform a massive number of sets, which creates huge amounts of central nervous system fatigue.
Simplify to Amplify
At the end of the day, I want to strip away the noise. Whether you enjoy the feeling of a heavy triple or the skin-splitting pump of a 12-rep set, the underlying principles remain the same:
Mechanical Tension: Lift weights that challenge the muscle.
Intensity: Take your sets close to the limit.
Consistency: Show up and beat your previous self.
Standardize your form, stop worrying about whether 9 reps "counts" as strength or hypertrophy, and just focus on getting stronger over time. The results will follow the effort.
How this "reps conversation" fits into the bigger picture of your workout structure deserves its own deep dive, so stay tuned. For now: stop overthinking, grab the bar, and GET STRONGER!
