Introducing Test Based PT Academy
Introducing Katie Stokley and Steve Denby — bringing together over 50 years of combined personal training experience to elevate the health and fitness industry. We have created a test-based Personal Training Academy that blends cutting-edge internal health solutions with high-level coaching education. By integrating Zinzino’s science-backed wellness testing with practical, real-world personal training expertise, we empower PTs and wellness practitioners to deepen their knowledge, add meaningful value to their businesses, and deliver truly transformative results for their clients. Our mission is to raise industry standards, enhance professional growth, and support coaches in building thriving, holistic health practices.
About Katie Stokley Fitness
With 16 years in the fitness industry, my journey began long before I stepped into the gym. As an ex–elite football player, a serious back injury forced me into rehabilitation—and that’s when my passion for training truly began. From that moment, the gym became my purpose, my drive, and the foundation of a career I have never looked back on. Helping clients transform, grow in confidence, and accomplish what they never thought possible is, to me, the most rewarding job in the world.
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Now a mum to two boys 4 & 6, my business has evolved into a deeper, more holistic approach. After my own autoimmune diagnosis, I turned to test-based personal training to understand my body from the inside out. Through testing, lifestyle changes, and bringing myself back into balance, I discovered a new level of health—and now I’m committed to helping others do the same.
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My mission is to test 1,000 people next year and to educate other PTs on how to elevate their own practices through internal health.
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If you’re looking for someone who genuinely cares, listens, and is dedicated to your long-term wellbeing—not just quick results—you’ve found the right person.
About Steve Denby Health Coach
Co- Founder Of Test Based Nutrition
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Co Founder of Test Based PT Academy | Health Coach | Personal Trainer | Community Leader
Steve Denby has spent more than three decades at the forefront of the health and fitness industry. His journey began in 1993 when he founded Bodyguards – The Personal Fitness Service, the very first personal training gym in the North of England. This pioneering space set a new standard for personalised coaching and helped pave the way for the PT industry as we know it today.
Between 2007 and 2012, Steve taught personal trainers and delivered education for the European Institute for Sport and Fitness in Spain, shaping hundreds of coaches across Europe with his distinctive approach to movement, wellbeing and professional excellence.
After relocating to Kent, he established FLI Fitness, a thriving community of group outdoor bootcamps and movement sessions, while leading a dedicated team of personal trainers. His work continued to evolve beyond fitness when he co-founded Primal Roots CIC — a community interest company designed to support people affected by addiction, homelessness and social disadvantage through nature, movement and human connection.
Steve’s passion for wellbeing deepened further following the diagnosis of Type 1 diabetes for both himself and his son. This life-changing moment fuelled his commitment to test-based, personalised health, and ultimately led to the creation of Test Based PT Academy. His mission is simple but powerful: empower coaches to deliver results that are grounded in science, data and human understanding.
Today, Steve blends decades of coaching experience with cutting-edge testing, behavioural coaching and holistic health strategies. He is dedicated to helping PTs and health professionals elevate their practice, transform client outcomes and build sustainable careers that genuinely change lives.
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Our Clients Say
Co Founder of Test Based PT Academy | Health Coach | Personal Trainer | Community Leader
Steve Denby has spent more than three decades at the forefront of the health and fitness industry. His journey began in 1993 when he founded Bodyguards – The Personal Fitness Service, the very first personal training gym in the North of England. This pioneering space set a new standard for personalised coaching and helped pave the way for the PT industry as we know it today.
Between 2007 and 2012, Steve taught personal trainers and delivered education for the European Institute for Sport and Fitness in Spain, shaping hundreds of coaches across Europe with his distinctive approach to movement, wellbeing and professional excellence.
After relocating to Kent, he established FLI Fitness, a thriving community of group outdoor bootcamps and movement sessions, while leading a dedicated team of personal trainers. His work continued to evolve beyond fitness when he co-founded Primal Roots CIC — a community interest company designed to support people affected by addiction, homelessness and social disadvantage through nature, movement and human connection.
Steve’s passion for wellbeing deepened further following the diagnosis of Type 1 diabetes for both himself and his son. This life-changing moment fuelled his commitment to test-based, personalised health, and ultimately led to the creation of Test Based PT Academy. His mission is simple but powerful: empower coaches to deliver results that are grounded in science, data and human understanding.
Today, Steve blends decades of coaching experience with cutting-edge testing, behavioural coaching and holistic health strategies. He is dedicated to helping PTs and health professionals elevate their practice, transform client outcomes and build sustainable careers that genuinely change lives.
Robert Rose, Product Designer
What is Test Based Personal Training
The future of Personal Training starts with testing.
Test, Train, Transform
Personal Training Course Packages
At Test Based Personal Training, we provide the complete package for aspiring and existing fitness professionals. Whether you’re starting your journey with Level 2 & 3 Personal Training certifications or expanding your skill set through specialist CPD courses, our academy goes far beyond standard qualifications.
We don’t just teach you how to train clients—we teach you how to build a successful, sustainable business.
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Most courses give you the certificate and then leave you to figure everything out on your own. With us, you leave with more than a qualification.
You leave with a full business model, practical tools, and ongoing mentorship that guide you step-by-step in running a thriving test-based personal training service. We support you through the entire process, from education to implementation.
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By combining testing with expert coaching, you’ll set yourself apart from other trainers in the industry. Your clients will trust you on a whole new level, knowing you can support them internally through science-backed testing and externally through personalised fitness coaching.
This is the future of personal training—and we’re here to help you lead the way.
Courses Available:
Level 2
Level 3
Nutrition
Gut Health
'I was really struggling with keeping motivated with fitness. I advertised for a PT and found Katie. My god she is the girl for the job. Defiantly helped with my confidence too. So polite and helpful'.
Shelley B
Home Based Client
Katie’s Zoom sessions have been a godsend, helped with injuries, motivation and generally how to perform each exercises with good technique. I re connected with her a few months ago after being injured  at the beginning of lockdown & it has been great to get back into a routine.
Ian L
Gym Based Client now Virtual
Katie is such an enthusiastic and motivating individual, it makes each training session fly by. I could barely manage a sit up in our first session, but over the past 5 years she has helped me progress my fitness further than I ever believed I could.
Emma B
Gym Based Client now Virtual
For more feedback and reviews, contact me today.