Ryan created the ILU method after years of testing what actually works. His clients include doctors, athletes, executives and people starting at zero.

” I find his knowledge of anatomy and muscle development unsurpassed.”

Dr. Del Dorcheid MD PhD, St. Paul’s Hospital

 

 

 

 

Transform Your Training

Ryan Booth wrote Interruptive Linear Undulations (ILU) after years of testing what works.

This book gives you Ryan’s ILU: Interruptive Linear Undulations method for pain-free strength training.

ILU uses two simple wave patterns to build strength without pain. You alternate between heavy and moderate workouts. This prevents burnout and protects your joints. 

Ryan Booth developed this system in Vancouver for clients recovering from injury. The book gives you the complete ongoing program.

Ready to train without burning yourself out?

Everything i wish I’d known before my spinal surgery- in one book.

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Ryan Booth works as an actor and personal trainer in Vancouver. On screen, he has guest star and leading roles in film and TV. In the gym, he runs Ryan Booth Performance Inc., helping clients recover from injury.

What Is Interruptive Linear Undulations?

Most strength programs eventually break down because they ask people to train hard all the time. ILU takes a different approach.

Interruptive Linear Undulations (ILU) is a practical strength-training system that alternates demanding workouts with strategic recovery sessions. The result is steady progress with less fatigue, fewer setbacks, and a training plan that’s easier to sustain for years—not just weeks.

Originally developed while rebuilding after cervical spine surgery, ILU has since helped personal trainers, athletes, older adults, and people returning from injury train with greater confidence and consistency.

Whether your goal is to build strength, stay healthy, or keep clients progressing without burning them out, ILU provides a simple framework you can start using immediately.

P.S. This program works with barbells, treadmills, and real life. 

Get Strong, Can’t Go Wrong

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