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Welcome to Critical Body—Learn More About Us

Who We Are

Critical Body is the premier resource for learning how exercise can improve your physical health and mental wellbeing. Our team of personal trainers draws on the latest sports science research to provide workout tutorials and routines for those seeking to improve their fitness in a safe and effective manner.

We firmly believe in the power of getting a proper fitness education. By showing you how to train with the correct technique, our expertly-crafted exercise guides will help you to minimize your injury risk while enjoying the faster progress that is characteristic of using the proper form.

Our in-depth, fact-checked content is primed to improve your long-term health and fitness because we only discuss sustainable and proven training methods. You can look forward to evidence-based exercise tutorials, step-by-step weight lifting workouts, and guides that cover every aspect of strength and conditioning.

What Makes Us Different?

Thanks to advances in the physical sciences and modern publishing technology, there are now a handful of online health and fitness publications that are providing research-backed information. However, like any developing industry, there are still glitches in the system, and so it can be difficult to know which resources to trust.

While our diverse team holds a wide range of opinions and beliefs, when creating our content, we focus on communicating the facts in a personal way that’s easy to understand. After all, Critical Body exists to help people live their lives in better health.

After going through our fair share of problems, we understand the importance of long term wellbeing. While losing a few pounds quickly via extreme dieting methods may provide a short term boost in morale, such techniques often lead to misery and medical disorders down the road. As such, we want you to enjoy better health long after visiting our website, and so we devise our articles with sustainability and safety at the core.

Our strength training tutorials take you through each exercise step-by-step so that you can achieve better results (relative to your genetics, commitment level, etc.) while keeping your injury risk to a minimum.

We also discuss common mistakes that gym-goers make when performing these exercises so that you can stay safe while working out. Moreover, you’ll find a large variety of alternative exercises in our workout guides that cater to different equipment availabilities, physique goals, and interests.

To get in touch with the Critical Body team, please see our Contact Us Page for the different departments.

Meet The Critical Body Team

Louis Harrison
Louis Harrison

Louis created Critical Body to make engaging, evidence-based fitness information available to the masses. Pursuing his lifelong passion for exercise and strength training, Louis sought to develop a fitness resource that people can trust and look forward to learning from. He aims to help people stay safe in the gym and maximize their results by lifting weights with the proper form and using proven training techniques.

Brianna Martin
Brianna Martin

Brianna is the editorial director at Critical Body. She leverages her background in digital health media to organize our 13-strong team of fitness enthusiasts and content creators.

She also brings a wealth of hands-on experience to the company. Having competed as a high school track and field athlete in her youth, she still hits the gym 5 times a week, focusing primarily on functional training as a way to maintain both her physical fitness and flexibility. That’s why we call her Brilliant Bri.

James Jackson
James Jackson

Former academy rugby player James Jackson knows a thing or two about mental toughness. After losing virtually all of his personal training clients during the lockdown, James thought that his fitness career was over. He moved back in with his parents, stopped working out, and started devouring junk food.

But James bounced back. After starting work as a fitness content writer at Critical Body, James rediscovered his passion for exercise and coaching. Nowadays, this Brit puts his strength and conditioning knowledge to good use by changing lives through fitness once again. Our resident resistance training expert creates in-depth exercise guides to help people get fit at home and trains clients on the side.

Liam Brown
Liam Brown

Liam Brown draws on his 12 years of personal training experience to create strength training tutorials at Critical Body. After being brought up in a circle of competitive athletes by his physiotherapist father, he understands the critical importance of using proper form in order to avoid injury and build muscle.

Over the course of his career, he’s coached countless clients, including high-performing athletes, busy executives, and regular gym-goers, all of whom praise his patient yet detailed teaching style, which he puts to good use in Critical Body’s popular exercise tutorials.

Tiana Walker
Tiana Walker

Between hectic school runs and her volunteer work in the local community, this busy mom of 3, Tiana Walker, still finds the time to empower women to reach their full fitness potential. Born and raised in a poor Chicago neighborhood, opportunities were not always forthcoming for Tiana. Yet, the tenacity that she developed in her chaotic youth helped her to succeed despite the setbacks.

For the past 6 years, Tiana has been coaching women in and around the Chicago area, helping them to lose weight, increase their mobility, and gain both physical and mental strength. When she isn’t looking after the kids and training clients, Tiana spreads her message by writing for Critical Body and other online health publications.

David Tran
David Tran

After emigrating to Australia from Vietnam with his parents at the age of 7, David quickly developed an interest in both the physical sciences and physical activity. A keen sportsman, he studies anatomy and physiology and helps the Critical Body team to create content that’s grounded in solid scientific theory.

He’s fact-checked hundreds of articles on topics such as exercise science, human biology, and sports rehabilitation. In his spare time, he enjoys playing chess and practicing his favorite sport—soccer, which he hopes to make more accessible to disadvantaged youths in his home country.