Exercise Progression Without Adding Weight – 4 Methods
Every Muay Thai fighter hits a point where adding more weight just isn’t an option and exercise progression becomes challenging.
Whether you’re working with bodyweight exercises or a limited setup, it might feel like progress is out of reach. But here’s the truth: exercise progression isn’t just about heavier weights—it’s about smarter training.
In this video, I’ll show you four simple yet powerful methods to keep advancing your strength and performance without adding extra load.
These techniques are perfect for fighters and coaches who understand that success isn’t just about lifting heavier but training with purpose.
Let’s explore how to make every rep count.
by Don Heatrick
@donheatrick
Video Summary
When you don’t have access to heavier weights or are working with just your body weight, it’s important to know how to still progress your training. In this video, I’ll show you four methods you can use to make any exercise more challenging without needing to add extra load.
Method 1: Increase Reps (by Up to 3) – The Foundation of Exercise Progression
The simplest way to progress an exercise when you don’t have more weight is to add more reps. Increase your reps by up to 3 more than what’s programmed. This helps to increase overall volume, pushing your muscles to work harder without needing additional load.
This is a great starting point for bodyweight or lightweight exercises, or when you’ve run out of heavier weights, but there’s a limit. Once you’ve added those 3 extra reps, you’ll need other ways to progress in order to keep targeting the specific adaptations—like strength, endurance, or power—that your program is designed to develop.
Method 2: Iso Holds –Stacking Exercise Progression
The next method is to add iso holds—a static pause at the hardest part of the movement. In a squat, that’s at the bottom. In a pull-up or row, it’s at the top.
Start with a 2-second hold, and as you get stronger, increase that up to 5 seconds. Iso holds increase time under tension, which is key for building strength and muscle endurance.
Method 3: Eccentric Tempo with Iso Hold
Now we’ll combine a slow lowering phase—called the eccentric phase—with an iso hold at the hardest part of the movement.
Here’s how it works: Lower the weight slowly, over 2 to 5 seconds, pause at the hardest part for another 2 to 5 seconds, then lift back up at regular speed.
This forces your muscles to control the weight, making it much harder without adding any more load. Progress this by increasing both the lowering time and the hold duration as you get stronger.
Method 4: Unilateral Movements – Single Limb Exercise Progression
Finally, switch to unilateral exercises, where you work one side of your body at a time. This naturally makes the exercise more difficult by adding a balance and stability challenge, and also allows you to use your heaviest weight to target just one limb at a time.
Single-leg or single-arm variations also allow you to add iso holds or eccentric tempos. For example, holding at the bottom of a single-leg squat, making it more challenging even without more weight.
Actionable Summary: Your Exercise Progression Blueprint
Let’s review the four ways to progress an exercise when you don’t have enough load:
- Increase Reps: Add up to 3 more reps than what’s programmed
- Iso Holds: Pause for 2 to 5 seconds at the hardest part of the movement
- Eccentric Tempo with Iso Hold: Slow down the lowering phase, add a pause, then lift at regular speed
- Unilateral Movements: Work one side at a time to increase difficulty.
These progression methods are simple but highly effective. You’ll be able to keep challenging your muscles, improving strength and performance, without needing to add extra load. Start with increasing reps, then add in iso holds and tempo work, and you’ll see results!

