Strength Training

How to Boost Growth Hormone, Strength Levels and Muscle Size Without Heavy Weights

Jon Bruney, author of Neuro-Mass and The Neuro-Grip Challenge May 31, 2025

Occlusion is more commonly known as Blood Flow Restriction (BFR) training. Restricting blood flow during exercise may seem counterintuitive to most trainees. In fact, many athletes take pre-workout su… Read more

How to Boost Growth Hormone, Strength Levels and Muscle Size Without Heavy Weights

Jon Bruney, author of Neuro-Mass and The Neuro-Grip Challenge May 31, 2025

TRUE Strength: How To Develop Strength That Transcends The Gym

Zach Even-Esh May 31, 2025

How Zach Even-Esch, author of The Encyclopedia of Underground Strength and Conditioning. endured the devastating destruction of Hurricane Sandy when it pummeled his beloved New Jersey… Read more

Build Your Strengths and Weaknesses with the Isochain

Mental Muscle Logan Christopher May 31, 2025

Overall, the Isochain is simple to get up and running with. That being said I did feel like it took about two weeks until my body was really in the groove with most of the exercises and different posi… Read more

HYBRID STRENGTH TRAINING Q & A Part I — The TOP 5 Questions

Danny Kavadlo May 31, 2025

Dragon Door and I recently hosted a live Q & A Session in the Hybrid Strength Training Users Group on Facebook. Many excellent questions - and surprising answers - were raised. Read more

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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

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

Verbal diarrhea and a poorly organized format

Verbal diarrhea and a poorly organized format without much actionable info

Top notch product as always

Top notch product as always. Still holding my Russian reds.Yeah buddy!

It is a game changer for me

It is a game changer for me. It gave increditble feedback on the weights and duration. This kind of feedback is encouraging for setting goals in your strengh out put. Awesome. Bruce Lee would approve if he had this kind of feed back in his training.

Strength Training

How to Boost Growth Hormone, Strength Levels and Muscle Size Without Heavy Weights

How to Boost Growth Hormone, Strength Levels and Muscle Size Without Heavy Weights

TRUE Strength: How To Develop Strength That Transcends The Gym

Build Your Strengths and Weaknesses with the Isochain

HYBRID STRENGTH TRAINING Q & A Part I — The TOP 5 Questions

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What Real Users of The IsoMax Have to Say

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