Most martial artists spend years fighting their body with stretching and mobility issues.
They wonder why they remain stiff, weak, and lacking mobility despite their best efforts.
What most martial artists don’t know is that more stretching doesn’t equal more mobility.
You are tight not just because your muscles are weak.
You are tight because your brain is actively protecting you…from yourself.
The problem isn’t tight hamstrings or locked-up shoulders.
It’s the neurological armour your nervous system has built around your joints.
To reprogram your nervous system, unlock true flexibility, and permanently alter your range of motion, we’re going to look at 3 frameworks: PNF stretching, weighted stretching, and the proximal stability principle.
By the end of this, you’ll understand why your current stretching routine is sabotaging your progress, and you’ll learn how to become a “supple weapon”—mobile, strong, and injury-resilient.
Without further ado, let’s start.
Your Muscles Aren’t the Real Problem
Here’s what’s happening when you feel “tight”.
Your body has built-in safety mechanisms.
They’re designed to prevent injury.
When you try to move into an unfamiliar range of motion, muscle spindles detect the stretch.
They send signals to contract the muscle and resist the movement.
Your nervous system sees that deep stretch as a threat.
It activates the stretch reflex to “save” you from injury.
This is why static stretching feels like you’re fighting against your own body—because you are.
It’s genius in preventing your muscles tearing apart like a fresh ham and cheese toastie.
As hunter gatherers, if you lacked this mechanism and tore your hamstring while on the chase, you’d die.
It’s evolution working at its finest.
But you don’t hunt for your food anymore (unless you count scrolling uber eats).
So if you want to change your mobility, you must teach your nervous system that the range you’re trying to access is safe.
You must work on overcoming this mechanism.
Hacking Your Protective Systems
PNF (Proprioceptive Neuromuscular Facilitation) stretching works by essentially “hacking” your body’s protective system.
This allows you to override the stretch reflex.
It helps you finally unlock new ranges and change flexibility.
Here are 3 PNF protocols to add to your mobility practice:
Hold-Relax (HR)
- Stretch the target muscle for a few seconds
- Contract it isometrically for 5-10 seconds
- Relax and stretch deeper for 10-15 seconds
The contraction phase activates the Golgi tendon organs.
This causes the muscle to relax and lengthen.
Contract-Relax-Antagonist-Contract (CRAC)
- Contract target muscle → Relax into passive stretch → Contract opposing muscle
Hold-Relax-Swing (HRS)
- Contract → Hold → Swing limb through passive range
- Changes both mobility and coordination
Choose 1 protocol and apply it to your tightest area today.
I recommend starting with a Hold-Relax for 3 sets.
Your Core Controls Your Mobility
Research by Moreside and McGill on proximal stiffness training found that the trunk provides the stability to support mobility at your limbs.
Your core is the center for all movement.
A stable, strong core provides the foundation for your arms and legs to move freely and safely.
This is why people with weak cores often have “tight” hips and shoulders.
It’s not the joints that are the problem.
It’s the lack of central stability to allow for the movement to take place.
To apply this to your next session—spend 5-10 minutes on core activation and strengthening exercises (dynamic planks, cable chop and lift, dead bugs, etc).
Over time you’ll notice a huge shift in your mobility.
Weighted Stretching: Loading Your Way to Freedom
Weighted stretching is the most misunderstood mobility protocol—and potentially the most powerful.
Weighted stretching uses external load to:
- Take you past your body’s self-imposed limits
- Teach your nervous system to control greater ranges of motion
- Build strength in stretched positions (the holy grail of mobility)
Weighted stretching is highly neurological.
It’s teaching our body and brain to have confidence in our ability to control ROM without injury.
Finding the correct weight is crucial.
Too much weight and your nervous system fights back, restricting ROM and risking injury.
Too little and you won’t adapt.
I like weighted stretching with movements like Jefferson curls, Butterfly Stretch, Coach Stretch—all of which are included with video demonstrations and regressions in Unlock High Kicks in 90 Days.
How you can implement weighted stretching:
- 2-3 sets
- 4-8 reps with isometric holds
If it’s your first time, start with a very light resistance (2-5 lbs), and gradually progress as your nervous system adapts.
Flexibility without strength is just instability and your nervous system will never allow you to access a range of motion where you can’t demonstrate control.
This is why passive stretching often fails—you’re asking for mobility without proving you can handle it.
The most flexible people in the world (gymnasts, dancers, martial artists) don’t just stretch.
They build strength in their end ranges.
They earn their mobility by demonstrating they can control it.
Your New Framework:
- Build proximal stability first (strong core = mobile limbs)
- Use PNF protocols to communicate with your nervous system
- Add progressive loading to build strength in stretched positions
This isn’t just about touching your toes.
It’s about building a body that moves with confidence, power, and resilience.
Thank you for reading, I deeply appreciate your time.
Until next week,
Matthew.
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