IsoMax Training Blog

Matt Shifferle performing an IsoMax Overhead Press compared with a handstand to demonstrate some of his strategies for avoiding isometric training burnout

How to Avoid Isometric Burnout and Keep Your Strength Gains Coming

IsoMax Matt Schifferle Nov 22, 2025

Prevent isometric training burnout with these smart IsoMax strategies. Stay motivated, boost strength, and keep your gains steady with Isometric workout changes and strategies from Matt Schifferle Read more

Nine Commandments of Bodybuilding With Isometrics

IsoMax Matt Schifferle Jul 20, 2025

Master muscle growth with the Nine Commandments of Isometric Bodybuilding—proven principles to build size, strength, and control with zero joint stress. Read more

The Whys and Wherefores of Isometric Bodybuilding — And How It Can Pack On The Muscle Mass

IsoMax Matt Schifferle Jul 19, 2025

By Matt Schifferle "Hey Matt, you’re looking great these days!" "You’re really filling out your shirt. Whatever you’ve been doing, keep at it!" "Whatever you’ve been up to in your training, you look b… Read more

What Real Users of The IsoMax Have to Say

“Having been a Strength and Conditioning Coach for 40 years (33 years at the college level, 7 years at the high school level), I have seen a LOT of devices come and go. The IsoMax impresses me so much that I would definitely incorporate it into my program if I were starting all over again in my career. It'll defin… Read More

Rod Cole

Stephenville, TX

“Been working out since 1975. The Isomax has taken center stage. The combination of convenient, very effective isometrics and seeing the amount of force generated on each rep is phenomenal. Dragon Door's innovations are a godsend. I'm 70 and the strongest I have ever been.”

Bob Lorenz

Vernon, NY

“I have been able to gain more muscle mass and increased strength with the Isomax than with any free weights or weight machine. I am in my mid 40s and have been lifting weights since my late teenage years, but nothing I have tried compares to the Isomax!”

Mike Little

Lansing, NC

Excellent Isometric Trainer. Additional training technique to weights. Exercises your muscles differently than normal weights. For those people like me who have never trained isometrically they stimulate your muscles without risk of injury. Isometrics strengthens muscle strength / endurance in different ways to w… Read More

Tommy Cusack

London, England

I love my IsoMax. I am 55, I had the normal aches and pains you would expect for someone my age. Back, knee and tricep tendonitis. I have been using the IsoMax for 4 months, my aches and pains have faded to nothing. My blood pressure has also improved and i have effortlessly gained muscle. And i am only using it … Read More

Stu W.

Long Island, NY

The book is excellent!!

I originally had it years ago, but lost it when I walked headlong into my own stupidity. Thanks for showing me the opportunity to purchase another copy.
Great price!! I completely forgot it is still out there. Now that I've retired and am slowing down. I believe it will be a great read.

This is an amazing book

This is an amazing book. I am amazed by the power of the isometrics and have seen great transformation in my body in just a month. Happy to have found this information and I highly recommend it

Excellent book

Excellent book, with some crazy rings based exercises; I just wish there was some kind of program for progression.

Good Overall, but takes from other Dragon Door books

While this is a good book for a beginner, both the bodyweight and kettlebell exercises can be learned in greater detail in other Dragon Door books (Convict Conditioning covers the exact same six calisthenics movements and Pavel covers the same kettlebell exercises). I probably would have found better value if I was a first time reader solely focused on fight conditioning.

Excellent