Home of Conjugate X Conditioning

A hybrid approach to strength training & conditioning for those looking for life after CrossFit that will completely transform you into a strong, well-conditioned athlete that looks as hard as they train and while still crushing PRs.

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Jason Brown


Hi, I’m Jason Brown.

I’ve spent my entire 15+ year career training everyday athletes to become healthier, stronger, and better conditioned, using a method I’ve developed called Conjugate X Conditioning (CXC).

I’ve been exclusively online coaching since 2015. I’m a combat veteran, a former gym owner, founder of Jason Brown Coaching & Box Programming, and published author of “Lower-body Training” via Human Kinetics. I had the ability to introduce CrossFit gyms all over the world to the Conjugate X Conditioning Method via my first online business Box Programming. At one point, more than 100,000 people a day were using my programming.

I've written hundreds if not thousands of articles for my own website, T-Nation, and EliteFTS specifically about the CXC Method. The CXC method was developed from a decade+ experience in the trenches training myself and other individuals, and through using these methods at CrossFit gyms all over the world.

Thank you for visiting my site & hope to work with you in the future!


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Client Results

"In better shape now with 3 kids than zero, and stronger and in less pain than I was doing competitive Crossfit. I'm a die-hard JB fan."

"CxC for the win!! Hands down the best training program I've ever used. Functionally, I'm stronger and faster than I ever was, and I considered myself an athlete."

I feel strongest & most jacked I've felt in my life!

I'm a tiny chick that does not put on muscle easily. I was able to build muscle, (increasing all of my lifts by 5 - 10 pounds) even in a small calorie deficit and dropping 8 pounds. The workouts were fun and I never felt rundown. Truly incredible programming.

As a stay-at-home dad with less time available to train, I look & feel the best I ever have!

What Other Coaches Say

Christian Thibadeau

Jason is an amazing source of training information. Not only is he a great coach, but he is an awesome person. He is one of the few people who I learn from. Heck, he has even corrected me a few times, improving my own coaching and teaching! He has so much to offer to anybody interested in strength, conditioning, and performance that all strength coaches should try to learn as much as possible from him.

Dr. John Rusin

Jason Brown is on of the clearest thinking coaches and programmers in the industry. His programming is not only well rounded with elements of many different disciplines of fitness combined into one cohesive programming unit, but it's also some of the most effective training out there.

Romain Kollar

Jason Brown cut my programming time in half. I used to spend 90 minutes for a single month programming when the client was doing a x4/week split. I'm now around 45 minutes for 4 weeks programming and will probably be able to go to 30 minutes soon for 8-12 weeks of programming.

Dan McDade

I might not have paid attention closely enough to what was being advertised, but there is a LOT more here than what I feel was advertised. I expected to only receive the Playbook. I did not expect to receive the educational info and coursework or the ability to get CEUs. I also did not expect to get the 2 complete programs included. This is a phenomenal product!

Chris Conroy

I started working with Jason in 2021, looking to get an edge with programming. From the start, working with him closely on what I wanted to target has been invaluable. His experience and extensive knowledge of the coaching space has brought me more confidence not just in how I handle programming for clients, but how I train and program for myself. Whether it’s better understanding how the body responds to training, or just set and rep management, the material Jason brings to the table is unmatched.

Chris Cohen

Learning the ropes of programming can be really tough, I often got analysis paralysis from designing programs, thanks to the crap you see on social media. Jason Brown has been able to make it so simplistic and very systematic. Which cuts down on my delivery time and allows me to focus on building the business and coaching vs getting loss in the program. Let me put it to you this way, I don't think twice about my programming anymore. Gives me tremendous confidence, and I have results to prove it.

Jenai Molden

This is an amazing playbook that is definitely worth much more! I am very detail oriented and this program was close to flawless. I needed guidance and this program gave me that plus so much more. I believe that I am going to be a much better coach because of it. It has also made me want to get my CSCS! Thank you so much for this and I will always be a supporter.

My Book

The Definitive Guide to Increasing Size, Strength, and Athletic Performance

Get the help you need to achieve a stronger lower body. This is a comprehensive guide containing the most up-to-date, scientifically proven strategies for increasing lower body size, strength, and power.

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