Forge the Tendons. Power the Breath. Command the Body.

A Structured 36-Day Training Path Integrating Yi Jin Jing and Advanced Isometrics for Serious Martial Practitioners



A Serious Message To Martial Artists Over 40...

(And Younger Fighters Who Intend To Still Be Dangerous At 80…)

There is a quiet moment most martial artists eventually experience.

It usually happens after training.

Not during the workout.

After.

You sit down.

Your knees ache a little longer than they used to.

Your shoulders feel tight for no clear reason.

Your hips don’t want to open the way they once did.

And you realize something uncomfortable:

You still know more technique than ever…

…but your body doesn’t express it the way it used to.

Your timing is still good.
Your understanding is deeper.
Your experience is higher.

Yet somehow…

Your power is less reliable.

Strikes don’t feel heavy unless you push.
Structure collapses under pressure.
Recovery takes days instead of hours.

And here is the dangerous part:

Most martial artists respond by training harder.

More reps.
More conditioning.
More intensity.

Which accelerates the exact breakdown they’re trying to escape.


The Real Problem Is Not Age.

It’s Tissue.

More specifically:

Your tendons stopped behaving like martial tissue.

You were never meant to rely on muscle for martial power.

Historically — across kung fu, aikido, jujutsu, and old wrestling traditions — power came from something different.

Not muscle hypertrophy.

Not cardiovascular endurance.

Not athleticism.

It came from elastic connective tissue coordinated by breath and structure.

In other words:

The body worked like a bow, not a weight machine.

And over time, modern training quietly destroyed that ability.


Why Most Training Quietly Makes Fighters Weaker

Typical training develops:

• muscles
• conditioning
• fatigue tolerance

But it neglects the actual transmission system of force:

Your fascia
Your tendons
Your structural alignment
Your breath-pressure system

So eventually:

You get stronger…
but hit lighter.

You train more…
but feel worse.

You understand technique…
but can’t express it effortlessly.

You are not losing skill.

You are losing elasticity.

And once elasticity disappears, technique becomes effort.


The Missing Layer The Old Masters Actually Trained

Across traditional internal systems existed a method specifically designed to solve this:

A training process to change the quality of the body itself.

Not conditioning.

Not stretching.

Not forms.

A method to transform connective tissue.

This was known as:

Yi Jin Jing — The Tendon Change Classic

But here is what almost nobody tells you:

Yi Jin Jing alone is incomplete for modern practitioners.

And modern isometrics alone are incomplete for martial artists.

Individually they help.

Together…

They rebuild the functional martial body.


Introducing: The Iron Silk Method

The Iron Silk Method is a 36-day tendon transformation system that integrates authentic tendon-changing work with advanced structural isometrics to rebuild real martial power from the inside out.

This is not a workout.

This is a developmental process.

A guided recalibration of:

• tissue elasticity
• structural alignment
• breath pressure
• force transmission

You will not simply feel tired after training.

You will feel different inside your body.

Heavier hands.
Quieter movement.
Effortless stability.


What Actually Happens During The Program

Each day follows a precise sequence:

1) OPEN — Tendon Activation

You perform a carefully selected Yi Jin Jing set.

Not as choreography.

As controlled tension-breath work that begins restoring elasticity to connective tissue.

2) FORGE — Structural Isometrics

You then apply force into structure using advanced isometrics:

Diagonal force
Rotational control
Rooted pressure
Overcoming tension

Here the body learns to transmit force without muscular strain.

3) SEAL — Integration

Finally you perform standing and breath integration work.

This step is crucial.

It teaches the nervous system to keep the changes.

Without this step, training fades.

With it, the body reorganizes.


What Students Commonly Experience

During Phase 1:
Joints feel looser but more stable.

Phase 2:
Structure becomes springy instead of rigid.

Phase 3:
Strikes suddenly feel heavy.

Phase 4:
Power appears without effort.

Not metaphorically.

Literally.

Students often report:
“I didn’t hit harder — but everything started moving people.”


The Real Purpose Of Iron Silk

This program is not designed to make you tired.

It is designed to restore:

The quality the old masters actually cultivated.

The ability to:

Issue force without tension
Receive pressure without collapse
Move without wasted effort

You are not learning techniques.

You are changing the body that performs them.


Who This Is For

Iron Silk is ideal if:

• You train martial arts but feel your body lagging behind your skill
• You want longevity without becoming soft
• You want internal power without mysticism
• You want strength that transfers to grappling, striking, and clinch

This is especially powerful for practitioners 35+.

Because this is when muscle stops compensating.


What You Receive

The full Iron Silk Method includes:

Complete 36-Day Guided Curriculum

Day-by-day structured progression.

Full Yi Jin Jing Instruction

Filmed and explained for martial function.

Advanced Isometric Library

Unique structural drills unavailable elsewhere.

Breath & Integration Training

Standing and internal pressure methods.

Phase Testing & Graduation Protocol

You will measure actual internal change.

Training Manual & Reference Guide

So you can repeat the cycle for life.


What Makes This Different

Most programs:
Train effort.

Iron Silk trains:
Transmission.

Most fitness:
Builds output.

Iron Silk:
Builds capacity.

Most internal arts:
Stay theoretical.

Iron Silk:
Makes it measurable.


After The 36 Days

You will notice:

Your posture changes.

Your breathing slows naturally.

Your strikes feel heavier.

Your grappling pressure improves.

And the most surprising change:

You stop needing to “try hard” to produce force.


The Price

Considering the transformation, this could easily be a $997–$1,997 coaching program.

Instead:

You can access the entire Iron Silk Method for:

$67

One time.

Lifetime access.


Guarantee

Try the program for 14 days.

If you do not feel a measurable difference in your structure, breathing, or body awareness — simply email and receive a full refund.

No risk.


Final Thought

You can continue training harder…

Or you can train deeper.

One path leads to fatigue.

The other leads to mastery.

The old masters were not magical.

They trained a layer most people never touch.

Now you can too.


Begin The Iron Silk Method Now

Forge the tendons.
Refine the breath.
Command the body.

— Jon Haas
The Warrior Coach

Course curriculum

    1. BONUS: Save 50% on The Martial Qigong Program

    2. Program Introduction (read this first)

    3. The Unified Body-Mind Training Process

    4. The History of The Tendon Change Classic

    5. The Iron Silk Advanced Isometric System

    1. 36-Day Unified Yin/Yang Curriculum

    1. Mid Push-up Hold

    2. Horse Stance Hold

    3. Iron Frame Lock

    4. Isometric Rotational Squat Hold

    5. Isometric Tendon Bow Hold

    6. The Dragon Coil Hold

    7. Diagonal Push-Pull Isometric

    8. Rotational Isometric Pull

    9. Wall Press Isometric

    10. Side Plank Posture

    11. Side Plank Pull

    12. Reverse Plank Hold

    1. 8 Pieces of the Brocade - Lessons 1 to 3

    2. 8 Pieces of the Brocade - Lesson 4

    3. 8 Pieces of the Brocade - Lesson 5

    4. 8 Pieces of the Brocade - Lesson 6

    5. 8 Pieces of the Brocade - Lesson 7

    6. 8 Pieces of the Brocade - Lesson 8

    1. Damo's Palm Set - Lessons 1 to 4

    2. Damo's Palm Set - Lesson 5

    3. Damo's Palm Set - Lessons 6 and 7

    4. Damo's Palm Set - Lesson 8

    5. Damo's Palm Set - Lessons 9, 10, and 11

    6. Damo's Palm Set - Lesson 12

    7. Yi Jin Jing Moving Set

    1. Wuji Standing Exercise

    2. Skin Breathing Exercise

    3. Reverse Breathing Instructions

About this course

  • $67.00
  • 34 lessons
  • 1.5 hours of video content

Get Started in The Iron Silk Method Today!

Instructor(s)

Instructor Bio:

My name is Jon Haas. I'm the founder of Warrior Fitness Training Systems, as well as a certified Underground Strength Coach-Level 2, 9th dan Black belt in Bujinkan Budo Taijutsu, and a certified Personal Trainer and FMS. I have spent over 30 years - a lifetime - training, studying and working with the best in the areas of martial arts, internal power development, and strength and conditioning to figure out how to reverse engineer the ultimate in human performance for martial art, combat sport, and living a powerful, healthy warrior lifestyle.  I have created over 44 programs (and counting!) focused on building internal power, functional strength, qigong energy training, and breathwork exercises for martial artists looking to forge the ultimate level of skill and power in their practice. The goal of my teaching has always been to help as many people as possible reveal their full capacity as human beings while living a strong, happy, and pain-free life. Visit www.warriorfitness.org for more information.

Jon Haas