Autoregulation: Why “How It Feels” Shouldn’t Run Your Workout

July 29, 2026

Newsletter Series: Issue 02 of “The 10-1-10”

The 10-Second Version

Bar speed doesn’t care how you feel; it just is. Use it, often in conjunction with AMRAP sets, to tell the difference between “this is heavy because I’m exhausted” and “this is heavy because it’s actually heavy.”

The 1-Minute Version

For years, I ran my main lifts off Jim Wendler’s 5/3/1, and the AMRAP set at the end of each wave is where I actually learned to grind through a true max-effort rep. These days, I’ve evolved that into something closer to APRE (autoregulatory progressive resistance exercise): I spread the percentage-based waves out wider, let autoregulation drive the day-to-day loading, and layer in bar speed to fine-tune the specific adaptation I’m chasing.

Here’s the practical version. You do two warm-up sets on a lift, then two sets taken to as many reps as possible (AMRAP). Beat your expected reps, add weight. Come up short, drop weight.

What actually decides the outcome is your readiness that day, and chasing “optimal” readiness is a fallacy to begin with. Life has too many moving parts - sleep, stress, nutrition, work, relationships - to ever truly enter some perfectly optimized state on command. As an athlete, you don’t get to control every variable on competition day. The weather, the officiating, the opponent’s game plan, how your body happens to feel that particular morning, the noise of the crowd - none of that is up to you. You will never get to request ideal conditions before you’re willing to compete. You just have to show up and play the best you can with the cards you’ve been dealt.

Training days are no different. Nobody’s handing out perfect sleep, zero stress, and a perfectly recovered body on demand. Autoregulating to wherever you actually are today isn’t a consolation prize; it’s the most honest, most human way to train. APRE doesn’t ask you to manufacture ideal conditions before it works. It just measures what you’ve actually got today and adjusts from there.

That’s the whole point. AMRAP performance is a far more reliable readiness tool than asking yourself how you feel, because bar speed and rep count don’t lie to you the way your mood does.

The 10-Minute Version

Where This Actually Came From

The autoregulation idea didn’t start in a powerlifting gym. It started in a military hospital in the 1940s, where a surgeon named Thomas DeLorme was treating soldiers with broken thighbones. Back then, standard practice was to cast the leg, wait for the bone to heal, and send the soldier back to duty with an atrophied limb. DeLorme started strapping light weights to the soldiers’ feet and having them perform leg extensions on the healing leg. The rehabbed legs came back closer in size to the uninjured leg, and those soldiers returned to full duty more successfully. He called it progressive resistance exercise. While the underlying ideas of progressive overload and three-sets-of-ten training may have existed in some form before him, DeLorme was perhaps the first to apply them in meaningful scientific and clinical work, laying groundwork that is still everywhere in gyms today.

In the 1970s, a researcher named K.L. Knight took DeLorme’s idea and gave it a real adjustment structure. He added a fourth set and built a chart: if you hit X reps on set three, you change the load by Y amount on set four. He called it DAPRE (daily adjustable progressive resistance exercise), and it’s still used by athletic trainers and physical therapists today because it’s simple and repeatable. By the mid-1980s, Knight had also found something interesting: athletes using DAPRE were adding strength without a matching increase in muscle mass, which pointed to a neurological explanation. The nervous system was learning to recruit muscle that was already there, not just building new tissue.

Mel Siff picked this up in Supertraining and renamed it APRE, dropping the “daily” since it wasn’t strictly a day-to-day protocol anymore. This is also where the three-rep-max version shows up for the first time; it isn’t found anywhere else in the literature before Siff.

That brings us to where the protocol lives today. Dr. Bryan Mann, who has published extensively on this and coached at the Division I level for over a decade, formalized three specific APRE protocols, each with a different job:

APRE10 (based on an estimated 10-rep max) drives hypertrophy and is the right call for beginners still learning technique on less-technical lifts.
APRE6 (based on an estimated 6-rep max) sits in the 75–87% intensity range that the strength literature consistently points to for building absolute strength, with hypertrophy as a secondary effect.
APRE3 (based on an estimated 3-rep max) uses loads above 90% to drive neurological adaptation and is the right tool for technical lifts like the Olympic movements, where fatigue wrecks technique long before it builds useful strength.

The setup is the same across all three: two warm-up sets (50% and 75% of your estimated max for that rep range), a third set taken to failure, and a fourth set adjusted based on how that third set went. Whatever you do on set four becomes the new estimated max for the following week.

Why “Get Within 3 Reps of Failure” Isn’t the Whole Story

You’ll hear a lot from the “science-based lifting” crowd that you only need to train within a few reps of failure for growth, or that hypertrophy is purely a function of total volume. I think that argument falls apart for a few reasons.

First, failure itself is poorly defined. Does it mean the muscle physically can’t produce another concentric rep? Does it mean the burn got bad enough that you stopped? Maybe you were just being a cotton-headed ninny muggins and gave up. Those are all very different physiological endpoints, and most of the research doesn’t distinguish between them clearly. That being said, if we agree that we’re going to try as hard as we can and then fail to meet previous performance, the only thing we have to accept as certain is that we should decrease the load and try again. We don’t have to waste time rationalizing the acute source; we just have to accept that something was detrimental to performance. If performance continues to decline, then we want to get into the weeds.

Second, that argument is almost always built around hypertrophy outcomes and ignores strength. This is a problem because a huge part of strength adaptation is neural, not just about muscle size. A program optimized purely for volume near failure isn’t necessarily optimized for getting stronger. To be clear, neither is a purely AMRAP-focused program, but that’s not my argument.

Third, there’s a common defense that training straight to failure is too taxing to be sustainable. The counter-argument is that you should instead do two or three times the number of working sets and take them a few reps shy of failure. That argument ignores the cumulative mechanical load on muscles, tendons, and joints. More total sets under tension aren't automatically gentler on your connective tissue just because no individual set touches true failure. Do volume-based protocols have a place with accessory work? Sure. But for your main strength work, I’d argue they’re lacking in rigor.

This is exactly where RPE runs into trouble as “the gold standard.” RPE is a subjective measure, and in real scientific practice, subjective measures are treated with skepticism because they’re vulnerable to mood, sleep, stress, and plain old bad self-awareness or bias.

If you need an example of how subjective measures have inherent bias, consider a 1-to-10 point scale. When you see that scale, do you consider a result of 5 as bad? If so, you’re probably biased by our school grading system, where a 50% is a failure. If you instead think of that scale as a standardized bell curve, you would consider a 5 to be perfectly average and acceptable. That’s inherent bias.

How hard was that set? “Oh, it was definitely a 10.” Really? If there was a death beam pointed at the Earth and the aliens would only let us live if you did one more rep, you couldn’t do it? In a well-trained athlete, I can buy that. In a novice lifter, I’m more skeptical of that answer than if an NBA insider told me where LeBron is playing next year. AMRAP performance and bar speed don’t have that problem. Bar speed doesn’t care whether you felt strong or weak walking into the gym; it just reports what happened.

Layering Velocity on Top of APRE

Where this gets more precise is adding bar speed as a second data stream underneath APRE. You can perform skill work or submaximal sets at fixed percentages before your AMRAP sets, and the velocity you produce on those submax reps is predictive of how your AMRAP set is actually going to go. If your bar speed on a standard warm-up percentage is noticeably slower than your normal baseline, that’s useful information before you ever load up the working set. It lets you taper your expectations honestly instead of walking up to the bar assuming today is a repeat of last week.

Dr. Mann has also published research, alongside other velocity-based training researchers, on using velocity loss to decide when to end a set rather than relying on a fixed rep target. As a lifter fatigues within a set, bar speed drops in a close-to-linear fashion. Therefore, you can set a velocity loss threshold (say, ending the set once speed drops 20% below the first or best rep) and let that threshold, not a predetermined rep count, decide when the set is actually done.

This is where fiber-type adaptations get interesting, if you want to go there (and don’t worry, my fellow nerds, we’ll dive deeper into this in a future article). Research comparing looser velocity loss thresholds (allowing more speed to drop before stopping the set) against tighter ones has found that higher velocity loss is associated with a shift away from type IIx muscle fibers - the fastest, most powerful fiber type - toward the slower, more fatigue-resistant type IIa.

That tracks with older research on strength athletes showing a similar IIx-to-IIa shift with high training volumes over time. If you’re chasing explosive strength or power, and IIx fibers are the ones producing that output, grinding sets out further than necessary may be quietly trading away the exact quality you’re training for. A tighter velocity loss threshold - ending the set sooner relative to the first rep - appears to better preserve those fast, powerful fibers while still driving strength adaptation.

None of this is an argument against ever training hard. It’s an argument for having an objective signal for exactly how hard is useful, instead of guessing.

Putting APRE3, APRE6, and APRE10 Into an Actual Plan

The rule of thumb is simple: move from higher-rep protocols to lower-rep protocols, never the reverse. APRE10 before APRE6, and APRE6 before APRE3. You don’t need to run all three in every cycle either; the right choice depends on what your athlete, or you personally, actually need.

Short on time, need hypertrophy only: Run APRE10 for the full cycle, deloading every fourth week if you’re going longer than six weeks.
Need both hypertrophy and strength, 6+ weeks available: Open with a couple of weeks of APRE10, then transition into APRE6 for the bulk of the cycle.
Need strength and power, 6+ weeks available: Open with APRE6, then move into APRE3 for the back half.
16 weeks or more: You can run the full progression - APRE10 into APRE6 into APRE3 - with each phase getting you closer to peak strength and power as the cycle builds.

When you switch protocols mid-cycle, don’t just restart from scratch. Take your last set-four performance under the old protocol and run it through the new protocol’s adjustment chart to find your starting weight. It keeps the transition smooth and respects the work you already put in.

The Art in the Science

Training is as much an art as it is a science. Use the most objective tools available to you - AMRAP performance, bar speed, and honest tracking over time - to actually see what’s happening instead of relying on how you feel that day. But the art is in how you bring it all together for the person in front of you.

I think about this the same way I think about cooking. Baking is a science; the difference between a bread, a pastry, and a cookie often comes down to precise ratios of the same handful of ingredients. Cooking is an art; it’s about bringing flavors together, balancing textures, and timing an entire meal so everything lands at the right moment. Good programming needs both. The data tells you what’s true. What you do with it is still on you.

This is the second installment of The 10-1-10 - a regular series covering the concepts behind effective training. Each piece is designed to be useful whether you have ten seconds or ten minutes. If something in this one resonated or raised a question, find a coach and keep the conversation going.

Issue 02 of The 10-1-10 | Autoregulation

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