How to Control Your Muay Thai Class Intensity
You walk into Muay Thai class and before you even set down your kit bag, the room’s energy pulls you toward 100%. It feels like that decision has already been made for you. Go hard or go home. Most fighters never question their Muay Thai class intensity. They let the room, the coach, and the culture dictate their effort every session, racking up needless wear and tear they won’t feel for years.
I learned this the hard way. I’m in my fifties and I’ve already had my left hip resurfaced. All because I was fit enough to handle an excessive training workload. Every session I smashed “just because I can”, racked up miles on the clock that I didn’t feel until decades later.
I started fighting at 32 with no coach, no corner team, and no ringcraft. In my first year I won three titles at three different weights, and by 40 I was pro ranked number 4 in the UK. My approach has evolved from outright wasteful and dangerous to highly efficient and ruthlessly effective.
If I’d stuck with the old school approach I began with, then I wouldn’t have been able to train past 30, let alone begin a competitive fight career. You don’t need to kill yourself every session to perform your best.
In this video, I break down how to self-regulate your training intensity, even in group sessions you didn’t program yourself.
Watch: I thought Muay Thai training was just supposed to wreck you…
by Don Heatrick
@donheatrick
Progressive Muay Thai Class Intensity
There’s a secret to achieving long-term progress without wrecking yourself. You do it by stepping your training workload through blocks, typically 3-weeks of stepping up, followed by 1-week of stepping back. Then rinse and repeat, climbing ever higher, month after month, year after year, without wasting effort or collecting avoidable damage. This approach is simply what strength and conditioning pros and sports scientists call periodization. Planned, progressive training.
The problem is, you don’t get to plan all your own training. Stepping through your S&C work in these training blocks is easy. But your Muay Thai classes, that’s different. After my last video, a fighter asked me, “If someone else is programming your group sessions, how can you preserve long-term health?”
The solution is self-regulation. You have to throttle back within a class according to the intensity you’ve planned for that week. Holding back in a class sounds like a wasted session. It is if you do it wrong. Let’s show you how to do it right.
Watch Thais training in Thailand and you’ll notice they don’t give it 100% all the time. They couldn’t. Most of the time they’re holding back to make sure they make it through the week. They pick the moments they’ll display full intensity, usually to impress their trainers, and the rest of the time they tend to sandbag it. They’ve been doing this since they were kids. They know the long game.
Self-Regulate Your Muay Thai Class Intensity With RPE
If you’re following a good strength and conditioning program, the low, medium, high, and deload week progression is handled. But to manage any group sessions within this framework, you’ll need to personalize things on the fly yourself. Here’s how.
On low week, work through at roughly an average RPE of 7 out of 10. Medium week, 8. High week 9 to 10. And deload while cruising at about a 6.
This doesn’t mean the whole session sits at this blanket level. You can still go at a 10 in some drills, even on a deload week. The goal is that your perception of effort for the session in retrospect averages out roughly where you planned it to be.
Much like the fight itself, don’t go all out from the first bell and expect to make it beyond round 3, let alone all the way to round 5. The aim is to sustain progress without sacrificing long-term health or messing up the fight camp you’re working toward. Only you know your total workload, including supplemental S&C, lifestyle load with work and family, your competitive schedule. And none of that is the same as the person training next to you in class. You need to manage your own peak and taper within your personal context.
How Maximum Muay Thai Class Intensity Chokes Your Technique
Now you might be thinking, isn’t working at 6 or 7 out of 10 a waste of time? No, because there’s another training variable running in parallel to your personal intensity scale. Skill.
The highest possible quality of your technique is inversely proportional to your intensity level. The harder you work, the more ragged your form becomes.
I think of it as a dial running from minimum to maximum intensity. As I dial up intensity, technique goes from sharpest to most ragged. Think of your Muay Thai training like this. When the intensity is lower, your technique must be 100%. That means perfect balance before, during, and after each technique. It means effective footwork and range control. It means doubling down on Fight IQ to read your opponent and set traps.
In sessions where the physical demand is lower, the cognitive demand fills the gap. And it’s in this gap that you’ll make the biggest technical breakthroughs. The kind you’ll never see going all out all the time. You’re periodizing your skill training. Most fighters don’t exploit this. Build better skill while less fatigued and progress to sessions that test that new skill at the ragged edge. TUF training, Technique Under Fatigue. Having a session RPE in mind is how you achieve that, even in your group classes, and even when your periodized plan is completely different to anyone else in the class.
Dial Intensity Down, Skill Up: Practical Application
For example, on a low week you add extra footwork to the combination drill that the class is working on. You start slightly out of range, execute the combo, then angle off and back out of range. You amplify real-world technical skill while reducing intensity by buying more recovery time. This is smart training with a direct carryover in the ring.
In training, if you’re dialling back intensity, you must dial up skill. You’ve no excuse to be sloppy. This doesn’t mean going easy on yourself, it simply means knowing when to push and when to hold the minimum effective dose.
Take Control of Your Training: The Long Game
You don’t have to end up in the boneyard of mismanaged, discarded fighters. The ones who went 100% every session and are now sidelined, or completely done. Thailand is full of them too.
By taking responsibility for your own training workload, even in group sessions you haven’t planned yourself, you get the best of both. Teammates, the group dynamic, novelty, and challenge are still on tap. But needless wear and tear is minimized.
Your target RPE is the driving number, but the principle underneath is the key. You can control far more than you think. You can stop letting the room, the coach, the culture dictate your intensity all the time. And in doing that, you train longer, break down less, and keep getting better in years when other fighters are already done.
Further Resources
Recommended Next
To understand how to cycle those weekly training blocks over a full Optimal Training Cycle, check this out next:
Muay Thai Performance Series
- Part 3: Return to Training: Why Going Hard Guarantees You’ll Quit
- Part 4: The 4-Stage Muay Thai Training Program (Complete Blueprint)
- Part 5: Muay Thai Fitness: Why the Burn Destroys Your Cardio
- Part 6: 52-Week Training Plan for Fighters
- Part 7: Muay Thai Training Schedule: 3 Models That Actually Work
- Part 8: Strength Training for Muay Thai: Why Your Lifting Is Killing Your Fight Speed
- Part 9: The Complete Muay Thai Training System (And Why You’re Not Using It)
- Part 10: Muay Thai Strength and Conditioning Coach: Real-World Problem Solving
Building Advanced Foundations
- Strength & Conditioning for Muay Thai 101 — A science-based approach to accelerated athletic development
- Optimal Fight Camp Blueprint — Periodization strategies for peak performance
