Have you ever finished a workout feeling completely destroyed?
Gasping for air, your muscles are burning and you’re questioning your life decisions?
Far too many people believe that’s what “good conditioning” looks like.
What if I told you that approach is not only outdated, but could be holding you back?
Welcome to Anti-Glycolytic Training (AGT). This is the conditioning methodology that Soviet sports scientists developed decades ago to build fast twitch muscle fibers (Type II).
This is the “anit-HIIT” training that teaches your body to produce less lactic acid instead of learning to tolerate more.
The Problem with Traditional HIIT
High-Intensity Interval Training has been marketed as the ultimate fat-burning, conditioning-building solution.
Work harder. Push through the pain. Embrace the burn.
The problem is this floods your system with lactic acid and taxes your ability to effectively recover.
While there’s certainly a time and place for Glycolytic Training, making it your primary conditioning method creates several issues: compromised recovery, excessive stress on your system, and diminishing returns as your body adapts to chronic high-lactate training.
Professor Yuri Verkhoshansky, considered by many to be the father of modern sports science, asked a revolutionary question: “What if we arrange training to produce less acid in the first place?”
The Alactic Energy System has a small gas tank with large fuel lines. This energy system is powered by your Type II fast twitch muscle fibers and is depleted rather quickly (in around 15 seconds). Once fully depleted, your body must break down ATP to replenish this gas tank.
The Glycolytic Energy System has a medium sized gas tank with medium sized fuel lines. This energy system initially recruits fast twitch muscle fibers which are then backed up by slow twitch muscle fibers. This energy system typically has enough fuel to last from 30 to 90 seconds (depending on how hard you’re hitting the gas pedal). When fatigued, the Glycolytic Energy System produces lactic acid. Your body must work to clear lactic acid to fully recover.
The Aerobic Energy System has a much larger gas tank with smaller fuel lines. This combination allows this energy system to fuel exercise for much longer periods of time at a lower intensity level.
Understanding Your Muscle Fibers
To understand why Anti-Glycolytic Training works, it helps to know a little about muscle fiber types. Your muscles contain a mix of different fibers, broadly categorized as slow-twitch (Type I) and fast twitch muscle fibers (Type II).
Type I (Slow-Twitch) Fibers: These are your endurance fibers. They contract slowly and steadily, resist fatigue, and rely on aerobic (oxygen-based) metabolism for energy. Marathon runners and distance cyclists tend to have higher percentages of Type I fibers.
Type II (Fast-Twitch) Fibers: These are your power fibers. They contract quickly and powerfully but fatigue faster because they largely rely on anaerobic metabolism which produces lactic acid. There are two subtypes of Type II fibers:
Type IIa Fibers are fast-twitch fibers that can be trained to become more oxidative (aerobic). They’re recruited for activities requiring more intensity like sprinting and heavy lifting. Power athletes typically have higher percentages of these fibers.
Type IIx Fibers are even faster and more powerful but fatigue almost immediately. These are sometimes called “couch potato” fibers because even inactive people have them for emergency situations like needing to sprint away from danger.
Here’s what’s fascinating: with the right training stimulus, you can actually transform the characteristics of your fast twitch muscle fibers. Anti-Glycolytic Training specifically targets Type IIa and Type IIx fibers and trains them to become more aerobic and essentially building endurance within your most powerful muscle fibers.
Understanding the A+A Protocol
The most accessible form of AGT for busy professionals is the A+A protocol…Alactic + Aerobic. The concept is elegantly simple: use your fast twitch explosive fuel system (the Alactic energy system) for brief, powerful efforts while allowing your Aerobic energy system to recover between sets.
Think of it this way: your body has a small, supercharged fuel tank (Alactic) that powers explosive movements for 10 to 15 seconds before depleting. You also have a large, efficient fuel system (Aerobic) that runs virtually forever a lower intensities.
The A+A protocol uses the larger fuel tank (Aerobic) to constantly “top off” the small tank (Alactic) between explosive efforts.
By keeping your work intervals short and your rest periods long enough for complete recovery, you avoid dipping into the Glycolytic “acid bath” that leaves you gasping for air with your muscles burning. You’re specifically recruiting those Type II fast twitch muscle fibers with each explosive rep, then giving them time to recover aerobically before the next set.
The On The Minute Format
At No Limits Fitness, we implement Anti-Glycolytic Training using an On The Minute (OTM) format with explosive exercises like kettlebell swings, kettlebell or dumbbell snatches, and push-ups. Here’s how it works:
Work for up to 10 seconds: At the top of the minute, you perform a brief set of explosive repetitions such as 4-6 heavy kettlebell swings or 3-5 snatches. Each rep should be crisp, sharp, and powerful. Give each rep an 80% – 90% effort. This brief burst recruits your Type IIa and Type IIx fast twitch muscle fibers without completely emptying the tank.
Rest for 50 seconds: This isn’t just catching your breath…it’s active recovery. Walk around, shake the tension from your arms with “fast and loose” movements, and let your heart rate come down. The goal is to pass the “talk test” before your next set. If you can’t speak a complete sentence comfortably, you’re working too hard.
Repeat for 20-40 minutes: The extended duration is what makes this protocol so effective. You’re accumulating significant training volume while staying aerobic and avoiding the metabolic waste products that compromise recovery.
Why This Works
The magic of AGT lies in what happens at the cellular level. By repeatedly tapping into your Alactic Energy System while allowing complete recovery, you’re training your Type II fast twitch muscle fibers to develop more mitochondria and capillaries. These adaptations are typically associated with slow twitch muscle fibers.
This approach develops mitochondria (your cellular power plants) and capillaries (oxygen delivery highways) in places they don’t normally develop with traditional conditioning.
The result? your most powerful muscle fibers gain the ability to recover faster and repeat explosive efforts without gassing out.
Research shows that Type II fibers are highly responsive to training. These can grow 5 to 7 percent more than slow twitch muscle fibers in response to training. And since fast twitch muscle fibers contribute significantly to metabolic efficiency, maintaining and developing them becomes increasingly important as we age.
For busy executives, engineers and entrepreneurs, the benefits extend beyond athletic performance. This type of training enhances recovery, supports better sleep, and leaves you energized rather than depleted after a session.
Implementation Guidelines
Choose the right weight: Your kettlebell should be heavy enough to demand respect but light enough that every rep remains explosive. If your power drops off mid-session, the bell is too heavy. For the kettlebell snatch, we recommend the bell which equates to your 8-10 Rep Max.
Honor the rest periods: This is where most people go wrong. The 50 second rest isn’t merely a suggestion…it’s the science behind the protocol. Cutting the rest period short turns this into Glycolytic Training and defeats the purpose.
Monitor the talk test: Before each set, you should be able to speak a complete sentence without gasping. “My name is Mike and like to eat pizza” works great. If you can’t pass the talk test, extend your rest.
Stop before quality degrades: The moment your swings, snatches or push-ups lose their snap, end your session. Power fade is your signal to stop. Accumulating more reps at this point will turn your session Glycolytic. In the words of Dan John, “the main thing is the keep the main thing, the main thing.”
Sample AGT Session
Here’s a simple 20-minute A+A session using heavy kettlebell swings:
At the top of each minute, perform 4 or 6 alternating kettlebell swings. Each round should alternate the arm that begins the set. Each swing should be crisp and powerful with an 80-90% effort. Then walk around, shake the tension from your arms and recover until the next set begins.
That’s it. 80-100 total alternating kettlebell swings spread over 20 minutes. No burning lungs. No shaky legs. No post-workout dramatic collapse on the gym floor.
Instead, you’ll finish feeling energized, recovered, and ready to tackle your day (instead of being destroyed).
The Bottom Line
Anti-Glycolytic Training represents a paradigm shift in how we approach conditioning. Rather than grinding yourself into dust with high-lactate workouts that exhaust your fast twitch muscle fibers, you’re building sustainable power and endurance that enhances your life instead of detracting from it.
Remember that it’s not about how much work you can do, it’s about how much work you can effectively recover from.
AGT lets you have your cake and eat it too: serious conditioning benefits without the recovery debt that makes everything else in your life suffer. You’re training your Type II fast twitch muscle fibers to become more aerobic…essentially developing endurance within your power fibers.
The Soviets figured this out decades ago. Maybe it’s time the rest of us caught up.
