Total Transformation anyway you want it
What is DOC30 Fit?
DOC30 Fit—short for Duration of Contraction-30 seconds—is a concept created by Matt Cook to maximize time under tension, range of motion, fat loss and muscle growth. This approach focuses on keeping your muscles working for at least 30 seconds during each set, using custom angles and techniques to make every rep count.
The secret? DOC30 taps into your body’s natural mechanics to trigger deeper muscle activation, release tension in the fascia, and improve flexibility. This opens the door to serious muscle growth and better overall performance—without the usual wear and tear.
Simply put, DOC30 Fit helps you break past genetic limits to achieve stronger, more defined muscles, better flexibility, healthier joints, and a faster metabolism. It’s not just another workout plan—it’s the next level of fitness.
Meet Matt Cook
Matt Cook, founder and President of DOC30 FIT and Badass Muscle, is a respected leader in fitness, health, and bodybuilding. Growing up in the scenic surroundings of Silver City, NM, he developed a love for the outdoors that fueled his active lifestyle. As a former NCAA wrestler, professional strongman, All-American powerlifter, and national-level bodybuilder, Matt’s experience and expertise have made him one of the most innovative and versatile fitness professionals in the industry.
With over 20 years of experience training clients, working with top industry experts, and mastering advanced techniques in training, nutrition, and supplementation, Matt has developed a unique approach that delivers real results. Known for his “out of the box” methods, Matt has become a go-to coach for professional athletes, celebrities, and everyday clients alike. His DOC30 FIT program focuses on effective training and nutrition strategies designed to transform your body while keeping your health and well-being a top priority.
Testimonials
Yaniv
"Working with Matt has been a game-changer for my transformation journey. His expert guidance, unique training style, and personalized nutrition plan not only helped me achieve outstanding results, but also equipped me with the knowledge and confidence needed to excel. Matt's dedication and professionalism make him a standout coach, trainer, and nutritionist. I highly recommend his services to anyone serious about reaching their fitness goals."
"I cannot recommend Matt highly enough as a coach and trainer. Working with him was a transformative experience after returning to working out after a four-year maternity leave. With a demanding schedule and a young child at home, I had a lot of work to do. Matt helped me get in the best shape of my life. The level of muscularity and conditioning I was able to achieve is a testiment to his skill. His approach goes beyond just physical training; he's a true motivator and supporter, understanding the unique needs and challenges of each client. His knowledge and dedication are second to none."
"Matt doesn't just train clients; he transforms them, helping them reach levels of fitness and achievements they may have thought impossible."
Susana
Kenny
"Training with Matt changed my outlook on weight training and gave me a physique I did'nt know was attainable. Matt's intense style of training, coupled with his nutritional background and extreme knowledge of the body keeps the muscles under constant contraction while alleviating any and all joint pain."
"At age 48 I decided to get in the best shape of my life. Matt coached me, trained me, and did my nutrition. He guided me step by step mentally and physically all the way to the day I reached my goal. I am beyond grateful to have worked with him. Not only have I had him as a coach and trainer, I've also gained a great supportive friend. Being a trainer myself, I have learned so much from Matt and I know if I ever decide to change my body again, he will definitely be my coach."
